View source for 2022 Luzon earthquake

{{Short description|Earthquake in the Philippines}}
{{For|other similarly-named earthquakes|Luzon earthquake (disambiguation){{!}}Luzon earthquake}}
{{Use Philippine English|date=August 2022}}
{{Use mdy dates|date=December 2022}}
{{Infobox earthquake
| title = 
| image = Bell Tower in Bantay, Ilocos Sur damaged by the 7.0 magnitude quake.jpg 
| caption = Damage to the Bantay Watch Tower
| timestamp = 2022-07-27 00:43:24
| isc-event = 624591485
| anss-url = us6000i5rd
| local-date = {{Start date|2022|07|27}}
| local-time = 08:43:24 [[Philippine Standard Time|PHT]] ([[UTC+8]])
| map2 = {{Location map many |Luzon mainland |relief=1
 |label      = 
 |lat        = 17.560
 |long       = 120.801
 |mark       = Bullseye1.png
 |marksize   = 50
 |position   = bottom
 |label2     = Manila
 |label2_size= 99
 |lat2       = 14.5958
 |long2      = 120.9772
 |mark2      = Green pog.svg
 |mark2size  = 10
 |position2  = right
 |label3     = Vigan
 |lat3       =17.5747
 |long3      = 120.3869
 |mark3      = Green pog.svg
 |mark3size  = 10
 |position3  = left
 |label4     = Baguio
 |lat4       = 16.53
 |long4      = 120.63
 |mark4      = Green pog.svg
 |mark4size  = 10
 |position4  = right
 |width      = 260
 |float      = none
 |caption    = }}
| magnitude = 7.0 {{M|w|link=y}}
| depth = {{convert|33.7|km|mi|0|abbr=on}} (USGS)<br /> {{convert|15.0|km|mi|0|abbr=on}} (PHIVOLCS)
| location = {{coord|17.560|120.801|display=inline,title}}
| type = [[Fault (geology)|Oblique-thrust]]
| countries affected = [[Philippines]]
| damages =  ₱{{Format price|56396225 + 22700000 + 1805650590.62}} (US${{Format price|{{#expr: 1016239.67 +  406941.54  + 32533959.55}}}})
| intensity = {{ubl|{{PEIS|8}}|{{MMI|8}}}}
| duration = 
| tsunami = {{Cvt|0.26|ft|m|abbr=on}}<ref name="TSUNAMI">{{Cite web|title=Tsunami Event: LUZON, PHILIPPINES|url=https://www.ngdc.noaa.gov/hazel/view/hazards/tsunami/related-runups/5855|publisher=[[National Geophysical Data Center]]|archive-url=https://web.archive.org/web/20220911160830/https://www.ngdc.noaa.gov/hazel/view/hazards/tsunami/related-runups/5855|archive-date=2022-09-11|url-status=live }}</ref>
| aftershocks = 4,511 M≥1.4 (68 felt; as of August 20, 2022)<ref>{{Cite web |date=August 28, 2022 |title=Magnitude 5.2 quake hits Pilar town in Abra|url=https://www.cnnphilippines.com/news/2022/8/28/M5.2-quake-Pilar-Abra-828.html |publisher=[[CNN Philippines]] |access-date=August 28, 2022 |archive-url=https://web.archive.org/web/20220828034321/https://www.cnnphilippines.com/news/2022/8/28/M5.2-quake-Pilar-Abra-828.html |archive-date=2022-08-28|url-status=dead }}</ref> Largest is {{M|w}} 6.4
| casualties = * 11 dead, 615 injured (Mainshock) 
* 139 injured (October aftershock)<ref name="sitrep4">{{Cite web|title=Situational Report for Magnitude 6.4 Earthquake in Lagayan, Abra (2022)|url=https://ndrrmc.gov.ph/attachments/article/4210/SitRep_No._4_for_Magnitude_6.4_Earthquake_in_Lagayan_Abra_2022.pdf|work=[[National Disaster Risk Reduction and Management Council]] }}</ref>
| fault = 
| affected = [[Cagayan Valley]], [[Central Luzon]], [[Cordillera Administrative Region]], and [[Ilocos Region]]
}}
On July 27, 2022, at 8:43:24&nbsp;a.m. ([[Philippine Standard Time|PHT]]), an earthquake struck the island of [[Luzon]] in the [[Philippines]]. The earthquake had a magnitude of 7.0 {{M|w}}, with an epicenter in [[Abra (province)|Abra]] [[provinces of the Philippines|province]].<ref name="anss1">{{citation-attribution|1={{Cite web |date=July 27, 2022 |title=M 7.0 – 13&nbsp;km SE of Dolores, Philippines |url=https://earthquake.usgs.gov/earthquakes/eventpage/us6000i5rd/executive |url-status=live |publisher=United States Geological Survey |access-date=August 10, 2022 |archive-date=August 10, 2022 |archive-url=https://web.archive.org/web/20220810134424/https://earthquake.usgs.gov/earthquakes/eventpage/us6000i5rd/executive }} }}</ref><ref>{{Cite news |date=July 27, 2022 |title=Magnitude 7 earthquake hits Abra |work=Rappler |url=https://www.rappler.com/nation/luzon/abra-earthquake-july-27-2022/ |url-status=live |access-date=July 29, 2022 |archive-url=https://web.archive.org/web/20220729051835/https://www.rappler.com/nation/luzon/abra-earthquake-july-27-2022/ |archive-date=July 29, 2022}}</ref> Eleven people were reported dead and 615 were injured. At least 35,798 homes, schools and other buildings were damaged or destroyed, resulting in ₱{{Format price|56396225 + 22700000 + 1805650590.62}} (US${{Format price|{{#expr: 1016239.67 +  406941.54  + 32533959.55}}}}) worth of damage.<ref name=":3" />

==Earthquake==
{{See also|Philippine Fault System}}
{{Location map+|Luzon|float=right|width=260|alt=Strong earthquakes in Luzon|caption=Large and notable instrumentally recorded earthquakes on Luzon.<ref>{{Cite web |title=Search Earthquake Catalog |url=https://earthquake.usgs.gov/earthquakes/search/ |url-status=live |archive-url=https://web.archive.org/web/20180101191728/https://earthquake.usgs.gov/earthquakes/search/ |archive-date=January 1, 2018 |access-date=July 27, 2022 |publisher=United States Geological Survey}}</ref>|places={{Location map~|Luzon|lat=14.57|long=121.68|position=right|label=<div style="position: relative; top: 0.4em;">1937</div>}}
{{Location map~|Luzon|lat=17.99|long=120.06|position=left|label=<div style="position: relative; top: 0.4em;">1938</div>}}
{{Location map~|Luzon|lat=13.02|long=124.3|position=right|label=<div style="position: relative; top: 0.4em;">1943</div>}}
{{Location map~|Luzon|lat=17.44|long=121.54|position=right|label=<div style="position: relative; top: 0.4em;">1949</div>}}
{{Location map~|Luzon|lat=16.32|long=122.07|position=right|label=<div style="position: relative; top: 0.4em;">[[1968 Casiguran earthquake|'''1968''']]</div>}}
{{Location map~|Luzon|lat=15.79|long=121.63|position=right|label=<div style="position: relative; top: 0.4em;">1970</div>}}
{{Location map~|Luzon|lat=13.37|long=122.79|position=left|label=<div style="position: relative; top: 0.4em;">[[1973 Ragay Gulf earthquake|'''1973''']]</div>}}
{{Location map~|Luzon|lat=16.77|long=122.33|position=right|label=<div style="position: relative; top: 0.4em;">1977</div>}}
{{Location map~|Luzon|lat=18.231|long=120.86|position=right|label=<div style="position: relative; top: 0.4em;">[[1983 Luzon earthquake|'''1983''']]</div>}}
{{Location map~|Luzon|lat=15.34|long=120.61|position=right|label=<div style="position: relative; top: 0.4em;">1985</div>}}
{{Location map~|Luzon|lat=15.68|long=121.17|position=left|label=<div style="position: relative; top: 0.4em;">[[1990 Luzon earthquake|'''1990''']]</div>}}
{{Location map~|Luzon|lat=13.525|long=121.067|position=left|label=<div style="position: relative; top: 0.4em;">[[1994 Mindoro earthquake|'''1994''']]</div>}}
{{Location map~|Luzon|lat=15.77|long=119.74|position=left|label=<div style="position: relative; top: 0.4em;">[[1999 Luzon earthquake|'''1999''']]</div>}}
{{Location map~|Luzon|lat=14.95|long=120.52|position=left|label=<div style="position: relative; top: 0.4em;">[[2019 Luzon earthquake|'''2019''']]</div>}}
{{Location map~|Luzon|lat=17.56|long=120.76|position=left|label=<div style="position: relative; top: 0.4em;">'''2022'''</div>}}
}}

The [[Subduction tectonics of the Philippines|tectonics of the northern Philippines]] and around the island of Luzon are complex. Luzon is bounded to the east and west by [[subduction zones]]. In the southern part of Luzon, the subduction zone is located east of the island along the [[Philippine Trench]], where the [[Philippine Sea plate]] subducts westward beneath the [[Sunda plate]]. In northern Luzon, where the July 27 earthquake occurred, the subduction zone location and direction changes, with another trench ([[Manila Trench]]) located west of Luzon and the Sunda plate subducts eastward beneath the Philippine Sea plate. The complexity of [[plate tectonics]] on and around Luzon is evidenced by the diversity of [[Focal mechanism|faulting mechanisms]] in large earthquakes. Magnitude 7 or greater earthquakes in this region since 1970 have exhibited reverse, normal, and strike-slip faulting. These active plate boundaries lead to high seismic activity. Since 1970, 11 other earthquakes of magnitude 6.5 or larger have occurred within {{convert|250|km|mi|0|abbr=on}} of the July 27, 2022, earthquake. The largest of these earthquakes was a [[1990 Luzon earthquake|magnitude 7.7 strike-slip earthquake]] on July 16, 1990, located approximately {{convert|215|km|mi|0|abbr=on}} south of the July 27 earthquake. At least 1,600 people died and more than 3,000 people were injured in the 1990 earthquake. The 1990 earthquake also caused [[landslide]]s, [[soil liquefaction|liquefaction]], [[subsidence]], and [[sand boil]]s in the [[Baguio]]–[[Cabanatuan]]–[[Dagupan]] area.<ref name="anss1" />

===Characteristics===
[[File:2022-07-27 Dolores, Philippines M7 earthquake shakemap (USGS).jpg|thumb|USGS ShakeMap showing the earthquake's intensity.|left]]
The earthquake occurred as a result of oblique-reverse faulting. Preliminary analysis indicates that the earthquake occurred on either of a low-angle [[reverse fault]] dipping to the east with a small component of left-lateral (strike-slip) motion, or on a steeply dipping reverse fault dipping to the northwest with a small component of right-lateral motion. The earthquake depth, mechanism, and location are consistent with the earthquake having occurred in the Philippine Sea plate above the Sunda plate. The Sunda plate subducts eastward beneath Luzon with the plate boundary located off the western coast of Luzon. According to the USGS, the [[seismic moment]] released was 5.4e+19 [[Newton-metre|N-m]], corresponding to a moment magnitude of 7.1 ({{M|w}}). A finite fault obtained from [[seismic inversion]] suggest [[earthquake rupture|rupture]] occurred along an east-dipping thrust fault, and produced a maximum displacement of {{cvt|0.9|m}}.<ref name="anss1" />

It was reported as 7.3 {{M|s}} by the [[Philippine Institute of Volcanology and Seismology]] (PHIVOLCS).<ref name="PHIVOLCS">{{Cite web |date=July 27, 2022 |title=Earthquake Information No. 1 |url=https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B1F.html |url-status=live |archive-url=https://web.archive.org/web/20220727033119/https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B1F.html |archive-date=July 27, 2022 |access-date=July 27, 2022 |publisher=[[Philippine Institute of Volcanology and Seismology]]}}</ref><ref name="phivolcs1">{{Cite web |date=July 27, 2022 |title=Earthquake Information No. 2 |url=https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B2F.html |url-status=live |archive-url=https://web.archive.org/web/20220727025600/https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B2F.html |archive-date=July 27, 2022 |access-date=July 27, 2022 |publisher=[[Philippine Institute of Volcanology and Seismology]]}}</ref> The report was later revised to an earthquake of 7.0 {{M|w}} with the epicenter {{convert|3|km|mi|abbr=on}} [[Bearing (navigation)|N 25'''°''' W]] of [[Tayum]], [[Abra (province)|Abra]] at a depth of {{convert|17|km|mi|abbr=on}}.<ref name="phivolcs1" /> 
Despite being a relatively shallow event, no [[surface rupture]]s were identified. A [[focal mechanism]] analysis indicate rupture on a reverse fault with either a northeast–southwest striking, steep dipping (69°) plane or a north–south, shallow dipping (8°) plane.<ref name="Aurelio22">{{cite journal |last1=Aurelio |first1=Mario |last2=Catugas |first2=Sandra Donna |last3=Lagmay |first3=Alfredo Mahar Francisco |title=Fault that caused a July quake in the Philippines still in question |year=2022 |url=https://temblor.net/earthquake-insights/fault-that-caused-a-july-quake-in-the-philippines-still-in-question-14355/ |journal=[[Temblor, Inc.|Temblor]] |access-date=August 21, 2022 |doi=10.32858/temblor.268|s2cid=251775214 }}</ref>

PHIVOLCS initially suspected the earthquake may have occurred on the [[Abra River]] Fault. Geologists had been aware of the potential for large earthquakes on the fault. The last known earthquake on the fault was in 1868, measuring 4.0–5.0 in magnitude.<ref name="VeraRuiz">{{Cite news |last=Vera-Ruiz |first=Ellalyn De |date=July 27, 2022 |title=Abra River Fault, which last moved in 1868, may have triggered powerful quake – Solidum |work=[[Manila Bulletin]] |url=https://mb.com.ph/2022/07/27/abra-river-fault-which-last-moved-in-1868-may-have-triggered-powerful-quake-solidum/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727123338/https://mb.com.ph/2022/07/27/abra-river-fault-which-last-moved-in-1868-may-have-triggered-powerful-quake-solidum/ |archive-date=July 27, 2022}}</ref> The Abra River Fault is a northern extension of the Philippine Fault Zone. As it runs through Luzon, it splays into three branches that runs beneath the southern [[Sierra Madre (Philippines)|Sierra Madre mountains]], the Central [[Cordillera Central (Luzon)|Cordillera Mountains]] before terminating at the northern coast of the island. The three branches strike north–south and are named (west to east) the Vigan-Agao Fault, the Abra River Fault and the Digdig Fault, respectively. The Philippine Fault Zone is associated with [[Pliocene]] and [[Quaternary]] [[tectonic uplift|uplift]] of the Cordillera Mountains. The Abra River and Digdig faults display pure strike-slip displacement, while the Vigan-Agao Fault display a large thrust component. In the northern part of Luzon, the Digdig Fault display a normal component.<ref name="Armada12">{{Cite journal |last1=Armada |first1=Leo |last2=Hsu |first2=Shu-Kun |last3=Ku |first3=Chia-Yen |last4=Doo |first4=Wen-Bin |last5=Wu |first5=Wen-Nan |last6=Dimalanta |first6=Carla |last7=Yumul Jr. |first7=Graciano |year=2012 |title=Possible northward extension of the Philippine Fault Zone offshore Luzon Island (Philippines) |journal=Marine Geophysical Research |volume=33 |issue=4 |pages=369–377 |doi=10.1007/s11001-013-9169-5 |bibcode=2012MarGR..33..369A |s2cid=55285917}}</ref>

However the steep-dipping plane and slip sense associated with the Abra River Fault is not consistent with rupture on it. The fault which produced the mainshock had a shallow dip angle and produced oblique-reverse displacement.<ref name="Aurelio22" /> A scientific journal published by Rimando and others in 2022 revealed the earthquake did not occur on any of the known faults in the area. Modelling of the earthquake indicate a source west of and parallel to the Abra River Fault. Pure dip-slip displacement of {{cvt|95|cm}} occurred at depths of {{cvt|13–16|km}}.<ref name="Rimando22">{{cite journal |last1=Rimando |first1=J. M. |last2=Williamson |first2=A. L. |last3=Mendoza |first3=R. B. C. |last4=Hobbs |first4=T. E. |title=Source Model and Characteristics of the 27 July 2022MW7.0 Northwestern Luzon Earthquake, Philippines |journal=Seismica |date=2022 |volume=1 |issue=1 |page=217 |doi=10.26443/seismica.v1i1.217|s2cid=253455746 |doi-access=free |bibcode=2022Seism...1..217R }}</ref>

===Aftershocks===
[[File:2022-10-25 Luzon, Philippines M6.4 earthquake shakemap (USGS).jpg|thumb|[[United States Geological Survey|USGS]] ShakeMap for the largest aftershock]]
At least 3,496 [[aftershock]]s were recorded by PHIVOLCS,<ref name=":3" /> with magnitudes in the range of 1.4 to 5.1.<ref name=":3" /> Sixty-three were strong enough to be felt.<ref name=":3" /> On July 28, PHIVOLCS revised the depth of focus of the earthquake to {{convert|15.0|km|mi|0|abbr=on}}.<ref name="PHIVOLCS3" /> The strongest aftershock occurred on October 25, measuring {{M|ww}} 6.4, and having a maximum intensity of VII (''Very destructive'') on the [[PHIVOLCS earthquake intensity scale]].<ref name="M_6.4">{{Cite web|title=EARTHQUAKE INFORMATION NO. : 4  |url=https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/October/2022_1025_1459_B4F.html|publisher=Philippine Institute of Volcanology and Seismology |date=October 26, 2022 |access-date=October 26, 2022}}</ref><ref name="EQ4">{{Cite web|title=M 6.4 – 11&nbsp;km ENE of Dolores, Philippines|url=https://earthquake.usgs.gov/earthquakes/eventpage/us6000iwds/executive|publisher=United States Geological Survey |date=October 25, 2022 |access-date=October 25, 2022}}</ref> It caused extensive damage to thousands of infrastructures including homes and roads, and left 139 people injured.<ref name="sitrep4" /><ref name="philstar">{{Cite web|title=NDRRMC: 85 hurt, 44k families affected by Abra quake|url=https://www.philstar.com/headlines/2022/10/28/2219924/ndrrmc-85-hurt-44k-families-affected-abra-quake/|work=[[The Philippine Star]]}}</ref><ref>{{Cite web|title=Strong quake injures dozens, shuts north Philippine airport|url=https://apnews.com/article/science-philippines-manila-earthquakes-ferdinand-marcos-jr-be94326447233d3eae14763ada43dc1c|author=Jim Gomez|agency=Associated Press|date=October 26, 2022 }}</ref><ref>{{Cite web|url=https://news.abs-cbn.com/amp/news/10/26/22/look-rockslide-damaged-structure-in-wake-of-abra-quake|title=Rockslide, damaged structure in wake of Abra quake|work=[[ABS-CBN]]|date=October 26, 2022 }}</ref><ref>{{Cite web|title=Church, some houses damaged after Abra quake|url=https://www.gmanetwork.com/news/topstories/regions/849281/part-of-church-belfry-falls-cracks-show-after-abra-quake/story/?amp|author=Sherylin Untalan|work=[[GMA News]]}}</ref> Two days later, four soldiers giving aid to the affected area were attacked by the [[New People's Army]], leaving two of them dead, another injured and one missing.<ref>{{Cite web|title=Rebels kill two soldiers helping with aid efforts in area hit by earthquake|url=https://www.expressandstar.com/news/world-news/2022/10/27/rebels-kill-two-soldiers-helping-with-aid-efforts-in-area-hit-by-earthquake/|work=[[Express & Star]]|date=October 27, 2022 }}</ref> At least 409 aftershocks were recorded by October 26.<ref>{{cite news |last1=Noriega |first1=R. |title=PHIVOLCS logs 409 aftershocks following magnitude 6.4 quake in Abra |url=https://www.gmanetwork.com/news/scitech/science/849331/phivolcs-logs-409-aftershocks-following-magnitude-6-4-quake-in-abra/story/ |access-date=October 26, 2022 |agency=GMA Network |date=October 26, 2022}}</ref>

===Intensity===
On the [[PHIVOLCS earthquake intensity scale]] (PEIS), intensity VII (''Destructive'') was instrumentally recorded in [[Vigan]], corresponding to an intensity of VII (''Very strong'') in the [[Modified Mercalli Intensity Scale]].<ref name="PHIVOLCS3">{{Cite web |date=July 28, 2022 |title=Earthquake Information No. 3 |url=https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B3F.html |url-status=live |archive-url=https://web.archive.org/web/20220729144718/https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/July/2022_0727_0043_B3F.html |archive-date=July 29, 2022 |access-date=July 29, 2022 |publisher=[[Philippine Institute of Volcanology and Seismology]]}}</ref><ref name="Perez">{{cite journal |first1=J. S. |last1=Perez |first2=D. C. |last2=Llamas |first3=M. P. |last3=Dizon |first4=D. J. L. |last4=Buhay |first5=C. J. M. |last5=Legaspi |first6=K. D. B. |last6=Lagunsad |first7=R. C. C. |last7=Constantino |first8=R. J. B. |last8=De Leon
|first9=M. M. Y. |last9=Quimson |first10=R. N. |last10=Grutas |first11=R. S. D. |last11=Pitapit |first12=C. G. H. |last12=Rocamora |first13=M. G. G. |last13=Pedrosa |title=Impacts and causative fault of the 2022 magnitude (Mw) 7.0 Northwestern Luzon earthquake, Philippines |journal=  Frontiers in Earth Science|date=2023 |volume=11 |doi=10.3389/feart.2023.1091595 |bibcode=2023FrEaS..1191595P |s2cid=1091595 |doi-access=free }}</ref> The maximum intensity of VIII (''Very destructive'') was experienced in isolated areas.<ref name="phivolcs-news">{{Cite web |date=July 27, 2022 |title=Primer on the 27 July 2022 Magnitude (Mw) 7.0 Northwestern Luzon Earthquake |url=https://www.phivolcs.dost.gov.ph/index.php/news/15340-primer-on-the-27-july-2022-magnitude-mw-7-0-northwestern-luzon-earthquake |url-status=live |archive-url=https://web.archive.org/web/20220729144717/https://www.phivolcs.dost.gov.ph/index.php/news/15340-primer-on-the-27-july-2022-magnitude-mw-7-0-northwestern-luzon-earthquake |archive-date=July 29, 2022 |access-date=July 29, 2022 |publisher=[[Philippine Institute of Volcanology and Seismology]]}}</ref> Intensity VII was reported in [[Bucloc]] and [[Manabo]], [[Abra (province)|Abra]]. In Vigan, Sinait, Bantay, San Esteban (in Ilocos Sur), Laoac (in Pangasinan), and Baguio, shaking corresponding to intensity VI (''Very strong'') was reported.<ref name="phivolcs1" />

In an interview with a local radio station, Renato U. Solidum, the head of PHIVOLCS,<ref name="newyorktimes">{{Cite news |date=July 27, 2022 |title=7.0 Magnitude Earthquake Hits Northern Philippines |work=The New York Times |url=https://www.nytimes.com/2022/07/26/world/asia/philippines-earthquake.html |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727013545/http://www.nytimes.com/2022/07/26/world/asia/philippines-earthquake.html |archive-date=July 27, 2022}}</ref> it was felt with "relatively moderate intensity" in [[Manila]], the capital of the Philippines.<ref name="newyorktimes" /><ref>{{Cite news |last=Santos |first=Jamil |date=July 27, 2022 |title=Nasawi sa magnitude 7 na lindol sa Abra, umakyat sa 4; sugatan, 60 |language=tl |trans-title=Death toll in magnitude 7 earthquake in Abra, climbs to 4; wounded, 60 |work=[[GMA Network]] |url=https://www.gmanetwork.com/news/balitambayan/balita/839559/magnitude-7-na-lindol-yumanig-sa-abra-1-tao-napaulat-na-namatay/story/ |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220728005739/https://www.gmanetwork.com/news/balitambayan/balita/839559/magnitude-7-na-lindol-yumanig-sa-abra-1-tao-napaulat-na-namatay/story/ |archive-date=July 28, 2022}}</ref>

===Tsunami===
Despite the earthquake having an inland epicentre, a tsunami of around 0.08&nbsp;m (0.26&nbsp;ft) was observed in [[Currimao]], [[Ilocos Norte]].<ref name="TSUNAMI" />

===Liquefaction===
Instances of liquefaction were recorded in Abra, Ilocos Norte, particularly along the [[Solsona, Ilocos Norte|Solsona]] Basin, and Ilocos Sur.<ref>{{Cite news |last=Ferreras |first=Vince Angelo |date=October 11, 2024 |title=Strong quakes in 2022 caused liquefaction in parts of Northwestern Luzon – PHIVOLCS |work=[[GMA Network]] |url=https://www.gmanetwork.com/news/scitech/science/923428/strong-quakes-in-2022-caused-liquefaction-in-parts-of-northwestern-luzon-phivolcs/story/ |access-date=October 11, 2024}}</ref>

==Response==
[[File:President Bongbong Marcos visits the Abra province.jpg|right|thumb|President Bongbong Marcos inspects relief operations and the distribution of aid.|246x246px]]
PHIVOLCS stated that there was no [[tsunami]] threat,<ref name="Casilao1">{{Cite news |last=Casilao |first=Joahna A. |date=July 27, 2022 |title=No tsunami threat, PHIVOLCS assures public after magnitude 7 quake |work=[[GMA News and Public Affairs|GMA News]] |url=https://www.gmanetwork.com/news/scitech/science/839533/no-tsunami-threat-phivolcs-assures-after-magnitude-7-quake/story/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727033118/https://www.gmanetwork.com/news/scitech/science/839533/no-tsunami-threat-phivolcs-assures-after-magnitude-7-quake/story/ |archive-date=July 27, 2022}}</ref> and an alert was not issued. Due to the inland epicenter, the earthquake could not cause seafloor uplift and trigger large waves. However, PHIVOLCS noted that shorelines and enclosed bodies of water may experience [[seiche]]s due to oscillation from the earthquake.<ref name="Rappler2">{{Cite news |date=July 27, 2022 |title=No tsunami alert raised after Luzon earthquake |work=[[Rappler]] |url=https://www.rappler.com/newsbreak/fact-check/no-tsunami-alert-raised-after-luzon-earthquake-july-27-2022/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727072312/https://www.rappler.com/newsbreak/fact-check/no-tsunami-alert-raised-after-luzon-earthquake-july-27-2022/ |archive-date=July 27, 2022}}</ref>

According to the [[National Grid Corporation of the Philippines]] (NGCP), power services in Manila and the surrounding provinces were uninterrupted. The NGCP said that load tripping may have occurred.<ref name="Cordero1">{{Cite news |last=Cordero |first=Ted |date=July 27, 2022 |title=Power transmission services normal despite earthquake – NGCP |work=[[GMA News and Public Affairs|GMA News]] |url=https://www.gmanetwork.com/news/topstories/nation/839530/power-transmission-services-normal-despite-earthquake-ngcp/story/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727041154/https://www.gmanetwork.com/news/topstories/nation/839530/power-transmission-services-normal-despite-earthquake-ngcp/story/ |archive-date=July 27, 2022}}</ref>

Commanders of the [[Philippine National Police]] (PNP) in Luzon were tasked to cooperate with the regional Risk Reduction and Management Office to maximize relief operations. All PNP infrastructures were also inspected for damage.<ref name="Cueto1">{{Cite news |last=Cueto |first=Francis Earl |date=July 27, 2022 |title=PNP mobilizes all Luzon commanders to assist in quake relief operations |work=[[The Manila Times]] |url=https://www.manilatimes.net/2022/07/27/latest-stories/pnp-mobilizes-all-luzon-commanders-to-assist-in-quake-relief-operations/1852444 |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727060644/https://www.manilatimes.net/2022/07/27/latest-stories/pnp-mobilizes-all-luzon-commanders-to-assist-in-quake-relief-operations/1852444 |archive-date=July 27, 2022}}</ref> The Army and Coast Guard also were dispatched to the affected areas.<ref>{{Cite news |last=Sadongdong |first=Martin |date=July 27, 2022 |title=PH Army, PCG rescue quake victims |work=Manila Bulletin |url=https://mb.com.ph/2022/07/27/ph-army-pcg-rescue-quake-victims/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727093731/https://mb.com.ph/2022/07/27/ph-army-pcg-rescue-quake-victims/ |archive-date=July 27, 2022}}</ref>

President [[Bongbong Marcos]] conducted a press briefing addressing the disaster and was scheduled to fly to Abra.<ref name="Rappler1">{{Cite news |date=July 27, 2022 |title=Livestream: Marcos holds press briefing on Luzon earthquake |work=[[Rappler]] |url=https://www.rappler.com/nation/video-marcos-jr-press-briefing-luzon-earthquake-july-2022/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727063254/https://www.rappler.com/nation/video-marcos-jr-press-briefing-luzon-earthquake-july-2022/ |archive-date=July 27, 2022}}</ref> He was expected to coordinate with national and local government establishments in relief efforts,<ref name="Rappler1" /> but was "staying away" at the present. He added that this was so that the local government could carry out their procedures without "disturb(ing) the work (of local officials)".<ref name="Gregorio1">{{Cite news |last=Gregorio |first=Xave |date=July 27, 2022 |title=Marcos to visit areas affected by Abra quake, but 'staying away' for now |work=[[The Philippine Star]] |url=https://www.philstar.com/headlines/2022/07/27/2198332/marcos-visit-abra-after-magnitude-70-quake |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727083245/https://www.philstar.com/headlines/2022/07/27/2198332/marcos-visit-abra-after-magnitude-70-quake |archive-date=July 27, 2022}}</ref> President Marcos has also called for telecommunication companies to give free communication to areas where transmission towers had collapsed.<ref name="Gregorio1" /> Local authorities stated that work and schools would be suspended in parts of Ilocos Norte to allow damage assessments to take place.<ref name="Adriano1">{{Cite news |last=Adriano |first=Leilanie |date=July 27, 2022 |title=Work, classes suspended in parts of Ilocos Norte after Abra quake |work=[[Philippine News Agency]] |url=https://www.pna.gov.ph/articles/1179908 |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727065524/https://www.pna.gov.ph/articles/1179908 |archive-date=July 27, 2022}}</ref>

In the Ilocos region, the [[Department of Social Welfare and Development]] (DSWD) said that it would be ready to serve the affected. More than 17,410 family food packs and 9,291 non-food items had been prepared and stored at warehouses, ready for distribution. An additional ₱2.70&nbsp;million (US$48.6&nbsp;thousand) was set as standby for emergency response.<ref name="Mugas1">{{Cite news |last=Mugas |first=John Michael |date=July 27, 2022 |title=DSWD prepares aid for earthquake-hit residents in Ilocos, Abra |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1636023/dswd-prepares-aid-for-earthquake-hit-residents-in-ilocos-abra |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727125326/https://newsinfo.inquirer.net/1636023/dswd-prepares-aid-for-earthquake-hit-residents-in-ilocos-abra |archive-date=July 27, 2022}}</ref> Work and school was also suspended in Baguio by its mayor.<ref name="Casilao2">{{Cite news |last=Casilao |first=Joahna A. |date=July 27, 2022 |title=Magalong suspends work, classes in Baguio after magnitude 7 quake |work=[[GMA News and Public Affairs|GMA News]] |url=https://www.gmanetwork.com/news/topstories/regions/839532/magalong-suspends-work-classes-in-baguio-after-magnitude-7-quake/story/ |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220727155341/https://www.gmanetwork.com/news/topstories/regions/839532/magalong-suspends-work-classes-in-baguio-after-magnitude-7-quake/story/ |archive-date=July 27, 2022}}</ref>

The [[Governor of Abra]], Dominic Valera, declared the entire province under a state of calamity. Province officials also authorized the use of 58 percent of the Calamity Reserve Fund for relief efforts.<ref name="Moaje1">{{Cite news |last=Moaje |first=Marita |date=July 28, 2022 |title=Abra now under state of calamity after magnitude 7 earthquake |work=[[Philippine News Agency]] |url=https://www.pna.gov.ph/articles/1180085 |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220728115301/https://www.pna.gov.ph/articles/1180085 |archive-date=July 28, 2022}}</ref> The [[House of Representatives of the Philippines|House of Representatives]] said it would allocate funds in the national budget to restore damaged buildings, including affected heritage and cultural buildings.<ref name="Sicat1">{{Cite news |last=Sicat |first=Alice |date=August 1, 2022 |title=Kongreso, susuportahan ang rehabilitasyon ng mga lugar na nasalanta ng lindol sa Abra |language=tl |trans-title=Congress will support the rehabilitation of the areas affected by the earthquake in Abra |work=Philippine Information Agency |url=https://pia.gov.ph/news/2022/08/01/kongreso-susuportahan-ang-rehabilitasyon-ng-mga-lugar-na-nasalanta-ng-lindol-sa-abra |url-status=live |access-date=August 2, 2022 |archive-url=https://web.archive.org/web/20220801042844/https://rmn.ph/100-bahay-sa-ilocos-sur-totally-damaged-sa-magnitude-7-na-lindol-restoration-sa-heritage-sites-aabutin-pa-ng-isang-taon/ |archive-date=August 1, 2022}}</ref> [[UNICEF]] said that emergency supplies were on standby to support government relief efforts and to assist affected children and families.<ref>{{Cite web |last=[[UNICEF]] |date=July 27, 2022 |title=UNICEF stands ready to reach children affected by the Philippines earthquake |url=https://reliefweb.int/report/philippines/unicef-stands-ready-reach-children-affected-philippines-earthquake |url-status=live |archive-url=https://web.archive.org/web/20220727070625/https://reliefweb.int/report/philippines/unicef-stands-ready-reach-children-affected-philippines-earthquake |archive-date=July 27, 2022 |access-date=July 27, 2022 |publisher=[[ReliefWeb]] |type=Press release}}</ref>

=== International aid ===
* {{Flag|China}}: Chinese ambassador to the Philippines [[Huang Xilian]], said that China would be ready to provide assistance.<ref name="Rocamora1">{{Cite news |last=Joyce Ann L. |first=Rocamora |date=July 27, 2022 |title=China offers help for disaster relief in quake-hit provinces |work=[[Philippine News Agency]] |url=https://www.pna.gov.ph/articles/1179900 |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727065524/https://www.pna.gov.ph/articles/1179900 |archive-date=July 27, 2022}}</ref> On July 29, the Chinese government provided an emergency supplies of worth {{FXConvert|PHL|10000000|cursign=[[Philippine peso|₱]]}}.<ref name="Aid">{{Cite news |date=July 31, 2022 |title=LIST: Countries offering the Philippines aid after Luzon earthquake |work=Rappler |url=https://www.rappler.com/nation/list-countries-offering-aid-luzon-earthquake-july-2022/ |url-status=live |access-date=August 3, 2022 |archive-url=https://web.archive.org/web/20220801171510/https://www.rappler.com/nation/list-countries-offering-aid-luzon-earthquake-july-2022/ |archive-date=August 1, 2022}}</ref>
* {{Flag|European Union}}: Donated €{{Format price|800000}} (US${{Format price|{{#expr: 815320.00 }}}}) to the victims of the earthquake.<ref>{{Cite news |last=Rocamora |first=Joyce Ann L |date=August 4, 2022 |title=EU earmarks P45-M humanitarian aid for Luzon quake victims |work=[[Philippine News Agency]] |url=https://www.pna.gov.ph/articles/1180663 |url-status=live |access-date=August 4, 2022 |archive-url=https://web.archive.org/web/20220804132638/https://www.pna.gov.ph/articles/1180663 |archive-date=August 4, 2022}}</ref> In addition, the EU would provide a [[Copernicus satellite]] to help assess the damage.<ref name="Aid" />
* {{Flag|Japan}}: Provided emergency assistance via the [[Japan International Cooperation Agency]].<ref name="Aid" />
* {{Flag|South Korea}}: South Korean government has pledged to provide US$200,000 towards humanitarian assistance.<ref>{{Cite news |last=Dela Cruz |first=Raymond Carl |date=August 1, 2022 |title=SoKor pledges $200K aid to quake victims |work=[[Philippine News Agency]] |url=https://www.pna.gov.ph/articles/1180326 |url-status=live |access-date=August 2, 2022 |archive-url=https://web.archive.org/web/20220802120847/https://www.pna.gov.ph/articles/1180326 |archive-date=August 2, 2022}}</ref> 
* {{Flag|Taiwan}}:  The Taiwanese government said that its [[National Fire Agency]] was prepared to conduct rescue missions if help was requested.<ref name="Huang1">{{Cite news |last1=Huang |first1=Ya-shih |last2=Huang |first2=Li-yun |last3=Evelyn |first3=Kao |date=July 27, 2022 |title=Taiwan offers assistance after strong earthquake hits Philippines |work=[[Central News Agency (Taiwan)|Central News Agency]] |url=https://focustaiwan.tw/society/202207270022 |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220727191154/https://focustaiwan.tw/society/202207270022 |archive-date=July 27, 2022}}</ref> On August 10, the government of Taiwan provided an initial US$200,000 through [[Taipei Economic and Cultural Office in the Philippines]] (TECO).<ref>{{Cite web |last=Rocamora |first=Joyce Ann L |date=August 10, 2022 |title=Taiwan turns over P11-M donation for Abra quake victims |url=https://www.pna.gov.ph/articles/1181064 |url-status=live |archive-url=https://web.archive.org/web/20220811095504/https://www.pna.gov.ph/articles/1181064 |archive-date=August 11, 2022 |access-date=2022-08-11 |work=[[Philippine News Agency]]}}</ref>
* {{Flag|United States}}: Provided 3,000 shelter grade tarps through the [[International Organization for Migration]].<ref name="Aid" />

==Impact==
Eleven fatalities were reported, including four from a landslide,<ref name=":7" /><ref name="Damian29" /><ref>{{Cite news |last1=Cueto |first1=Francis Earl |last2=Calalo |first2=Arlie O. |last3=Depasupil |first3=William B. |last4=Mendoza |first4=Red |date=July 30, 2022 |title=Death toll in Northern Luzon quake climbs to 10 |work=The Manila Times |url=https://www.manilatimes.net/2022/07/30/news/national/death-toll-in-northern-luzon-quake-climbs-to-10/1852751 |url-status=live |access-date=July 29, 2022 |archive-url=https://web.archive.org/web/20220729223443/https://www.manilatimes.net/2022/07/30/news/national/death-toll-in-northern-luzon-quake-climbs-to-10/1852751 |archive-date=July 29, 2022}}</ref> and at least 616 people were injured.<ref name=":3">{{Cite report |url=https://ndrrmc.gov.ph/attachments/article/4192/SitRep_No_15_for_Magnitude_7_0_Earthquake_in_Tayum_Abra_2022.pdf |title=Situational Report No. 15 for Magnitude 7 Earthquake in Tayum, Abra (2022) |date=August 10, 2022 |publisher=[[National Disaster Risk Reduction and Management Council]] |access-date=August 10, 2022 |archive-date=August 10, 2022 |archive-url=https://web.archive.org/web/20220810133311/https://ndrrmc.gov.ph/attachments/article/4192/SitRep_No_15_for_Magnitude_7_0_Earthquake_in_Tayum_Abra_2022.pdf |url-status=live }}</ref> More than 513,330 people were affected, of which, 57,022 were displaced.<ref name=":3" />

A total of 35,798 homes were affected, including 686 which were totally damaged.<ref name=":3" /> An additional 177 healthcare infrastructures were destroyed.<ref name="Tan1">{{Cite news |last=Tan |first=Arsenio |date=August 1, 2022 |title=177 health facilities, apektado ng lindol sa Abra |trans-title=177 health facilities, affected by the earthquake in Abra |work=Peoples Tonight Online |url=https://www.peoplestonightonline.com/news/177-health-facilities-apektado-ng-lindol-sa-abra/ |url-status=live |access-date=August 1, 2022 |archive-url=https://web.archive.org/web/20220802013017/https://www.peoplestonightonline.com/news/177-health-facilities-apektado-ng-lindol-sa-abra/ |archive-date=August 2, 2022}}</ref> Over 8,000 schools were affected.<ref name="Layson1">{{Cite news |last=Layson |first=Mer |date=July 29, 2022 |title=8K paaralan, sinira ng lindol |language=tl |trans-title=8K school, destroyed by the earthquake |work=[[Pilipino Star Ngayon]] |url=https://www.philstar.com/pilipino-star-ngayon/bansa/2022/07/29/2198727/8k-paaralan-sinira-ng-lindol |url-status=live |access-date=July 29, 2022 |archive-url=https://web.archive.org/web/20220729151009/https://www.philstar.com/pilipino-star-ngayon/bansa/2022/07/29/2198727/8k-paaralan-sinira-ng-lindol |archive-date=July 29, 2022}}</ref> Eleven schools in [[Central Luzon]], nine in the [[Cagayan Valley]], eight from the [[Cordillera Administrative Region]] and seven in the Ilocos Region, were seriously damaged.<ref name="Layson1" />

The [[Department of Agriculture (Philippines)|Department of Agriculture]] and [[National Irrigation Administration]] also reported damage estimated at ₱{{Format price|56396225}} (US${{Format price|{{#expr:1016239.67}}}}). The [[National Irrigation Administration]] estimated around ₱{{Format price|22700000}} (US${{Format price|{{#expr: 406941.54 }}}}) worth of damage to irrigation systems. There was an additional 2,383 buildings damaged, incurring a loss of ₱{{Format price|1805650590.62}} (US${{Format price|{{#expr:32533959.55}}}}). Total damage was estimated to be worth ₱{{Format price|56396225 + 22700000 + 1805650590.62}} (US${{Format price|{{#expr: 1016239.67 +  406941.54  + 32533959.55}}}}).<ref name=":3" />

===Abra===
A preliminary survey of damage suggested at least 80 percent of [[Abra (province)|Abra]] was affected.<ref name="Moaje1" /> A power outage occurred across the province due to destroyed power lines. Many businesses were disrupted. Residents stayed outside their homes and were left without food.<ref name="Moaje1" /> One villager died when he was hit by falling cement slabs in his house.<ref>{{Cite news |last1=Gomez |first1=Jim |last2=Favila |first2=Aaron |date=July 27, 2022 |title=Strong quake kills 2, injures dozens in northern Philippines |newspaper=The Washington Post|url=https://www.washingtonpost.com/world/73-earthquake-shakes-northern-philippines-felt-in-capital/2022/07/26/783dc34e-0d4b-11ed-88e8-c58dc3dbaee2_story.html |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727060652/https://www.washingtonpost.com/world/73-earthquake-shakes-northern-philippines-felt-in-capital/2022/07/26/783dc34e-0d4b-11ed-88e8-c58dc3dbaee2_story.html |archive-date=July 27, 2022}}</ref> In [[Bangued]], a person died when the walls of a [[dormitory]] collapsed, and an additional 44 were injured due to falling debris.<ref name="Damian1">{{Cite news |last=Damian |first=Valerie |date=July 27, 2022 |title=1 dead, 44 injured in earthquake-hit Abra |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1635722/1-dead-44-injured-in-earthquake-hit-abra |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727063253/https://newsinfo.inquirer.net/1635722/1-dead-44-injured-in-earthquake-hit-abra |archive-date=July 27, 2022}}</ref> A 59-year-old resident from [[Tubo, Abra|Tubo]] died of his injuries after the roof of his house collapsed.<ref name=":7">{{Cite news |last=Mendoza |first=John Eric |date=August 5, 2022 |title=Abra earthquake death toll rises to 11 – NDRRMC |newspaper=Philippine Daily Inquirer |url=https://newsinfo.inquirer.net/1641491/fwd-11-now-dead-in-abra-quake-ndrrmc/amp |url-status=live |access-date=August 5, 2022 |archive-url=https://web.archive.org/web/20220805021549/https://newsinfo.inquirer.net/1641491/fwd-11-now-dead-in-abra-quake-ndrrmc/amp |archive-date=August 5, 2022}}</ref>

The bodies of four people were recovered from a landslide.<ref name="Damian29">{{Cite news |last=Damian |first=Valerie |date=July 29, 2022 |title=Bodies of 4 missing Abra residents retrieved from landslide |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1637355/bodies-of-4-missing-abra-residents-retrieved-from-landslide |url-status=live |access-date=July 29, 2022 |archive-url=https://web.archive.org/web/20220729113058/https://newsinfo.inquirer.net/1637355/bodies-of-4-missing-abra-residents-retrieved-from-landslide |archive-date=July 29, 2022}}</ref> Historical churches in the province were also affected. The Shrine of San Lorenzo Ruiz in Bangued sustained major damage and one of its bell-towers was reduced to rubble.<ref>{{Cite news |date=July 28, 2022 |title=Massive earthquake rocks northern Philippines, setting off landslides |work=Deseret News |url=https://www.deseret.com/faith/2022/7/27/23280563/massive-earthquake-rocks-northern-philippines-setting-off-landslides |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220728053118/https://www.deseret.com/faith/2022/7/27/23280563/massive-earthquake-rocks-northern-philippines-setting-off-landslides |archive-date=July 28, 2022}}</ref> The [[Tayum Church]] in [[Tayum|the town of the same name]] also sustained damage.<ref name="bantay">{{Cite news |last=Sadongdong |first=Martin |date=July 27, 2022 |title=Strong Abra quake damages Vigan Cathedral, Bantay Bell Tower in Ilocos Sur |work=[[Manila Bulletin]] |url=https://mb.com.ph/2022/07/27/strong-abra-quake-damages-vigan-cathedral-bantay-bell-tower-in-ilocos-sur/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727035205/https://mb.com.ph/2022/07/27/strong-abra-quake-damages-vigan-cathedral-bantay-bell-tower-in-ilocos-sur/ |archive-date=July 27, 2022}}</ref> Over 640 displaced people took refuge at the town plaza.<ref>{{Cite news |date=July 28, 2022 |title=WATCH: Abra residents take shelter at Bangued Plaza after strong quake |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1636522/watch-abra-residents-take-shelter-at-bangued-plaza-after-strong-quake |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220728085839/https://newsinfo.inquirer.net/1636522/watch-abra-residents-take-shelter-at-bangued-plaza-after-strong-quake |archive-date=July 28, 2022}}</ref> Two bridges, one in Manabo and Bangued, respectively, were affected.<ref name="Dumlao1">{{Cite news |last=Dumlao |first=Artemio |date=July 28, 2022 |title=Abra declares state of calamity due to earthquake damage |work=[[The Philippine Star]] |url=https://www.philstar.com/nation/2022/07/28/2198624/abra-declares-state-calamity-due-earthquake-damage |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220728120715/https://www.philstar.com/nation/2022/07/28/2198624/abra-declares-state-calamity-due-earthquake-damage |archive-date=July 28, 2022}}</ref> Schools,<ref>{{Cite news |date=July 27, 2022 |title=DepEd: Cracks seen at several Abra schools after magnitude 7 quake |work=[[GMA News and Public Affairs|GMA News]] |url=https://www.gmanetwork.com/news/topstories/regions/839552/deped-cracks-seen-at-several-abra-schools-after-magnitude-7-quake/story/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727065524/https://www.gmanetwork.com/news/topstories/regions/839552/deped-cracks-seen-at-several-abra-schools-after-magnitude-7-quake/story/ |archive-date=July 27, 2022}}</ref> and 20 government properties were damaged.<ref name="Dumlao1" /> At least 31 landslides were reported, and a partially collapsed hospital was evacuated.<ref name="Dancel1">{{Cite news |last=Dancel |first=Raul |date=July 27, 2022 |title=At least 4 killed, 60 injured as powerful quake strikes northern Philippines |work=[[The Straits Times]] |url=https://www.straitstimes.com/asia/se-asia/71-magnitude-earthquake-hits-northern-philippines |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727082309/https://www.straitstimes.com/asia/se-asia/71-magnitude-earthquake-hits-northern-philippines |archive-date=July 27, 2022}}</ref> Road infrastructures including three bridges were damaged.<ref name="DeLeon" />

===Baguio===
Officials in [[Baguio]] stated that several crucial roadways were affected by debris. Thirty-three buildings were damaged.<ref name="DeLeon" /> Road closures affected motorists along [[Kennon Road]], [[Baguio–Bua–Itogon National Road]] and [[Benguet–Nueva Vizcaya Road]], leaving only the [[Aspiras–Palispis Highway]] open.<ref name="CNNPH1">{{Cite news |date=July 27, 2022 |title=7.0-magnitude quake damages structures, blocks roads in Northern Luzon |work=[[CNN Philippines]] |url=https://www.cnnphilippines.com/news/2022/7/27/earthquake-7.3-magnitude-Abra-Luzon.html |url-status=dead |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727043830/https://www.cnnphilippines.com/news/2022/7/27/earthquake-7.3-magnitude-Abra-Luzon.html |archive-date=July 27, 2022}}</ref> Patients at [[Baguio General Hospital]] were evacuated.<ref name="newyorktimes" /> A student at [[Saint Louis University (Philippines)|Saint Louis University]] was injured during a panic.<ref name="Casilao2" />

===Ilocos Sur===
A total of 32 towns and two cities received damage, with the heaviest in Vigan.<ref name="rmn1">{{Cite news |date=August 1, 2022 |title=100 bahay sa Ilocos Sur, totally damaged sa magnitude 7 na lindol; restoration sa heritage sites, aabutin pa ng isang taon |language=tl |trans-title=100 houses in Ilocos Sur, totally damaged by the magnitude 7 earthquake; restoration of heritage sites, will take another year |work=RadyoMaN Manila |url=https://rmn.ph/100-bahay-sa-ilocos-sur-totally-damaged-sa-magnitude-7-na-lindol-restoration-sa-heritage-sites-aabutin-pa-ng-isang-taon/ |url-status=live |access-date=August 2, 2022 |archive-url=https://web.archive.org/web/20220801042844/https://rmn.ph/100-bahay-sa-ilocos-sur-totally-damaged-sa-magnitude-7-na-lindol-restoration-sa-heritage-sites-aabutin-pa-ng-isang-taon/ |archive-date=August 1, 2022}}</ref> Nearly 100 homes were heavily damaged.<ref name="rmn1" /> Heritage sites in the [[UNESCO]] [[World Heritage City]] of [[Vigan]] were damaged, including the [[Vigan Cathedral]] and old-century houses, as well as few toppled power lines along Calle Crisologo.<ref>{{Cite news |date=July 27, 2022 |title=Look: State of Vigan City roads, buildings after magnitude 7.3 earthquake |work=Top Gear Philippines |url=https://www.topgear.com.ph/news/motoring-news/abra-earthquake-vigan-city-aftermath-a4354-20220727 |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727063254/https://www.topgear.com.ph/news/motoring-news/abra-earthquake-vigan-city-aftermath-a4354-20220727 |archive-date=July 27, 2022}}</ref><ref>{{Cite news |date=July 27, 2022 |title=Heritage structures, churches damaged by 7.3 quake |newspaper=[[Philippine Daily Inquirer|Inquirer]] |url=https://newsinfo.inquirer.net/1635457/heritage-structures-churches-damaged-by-7-3-quake |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727033627/https://newsinfo.inquirer.net/1635457/heritage-structures-churches-damaged-by-7-3-quake |archive-date=July 27, 2022}}</ref> Parts of the old historic belfry of [[Bantay Church]] in [[Bantay|the town of the same name]] also crumbled to the ground.<ref name="bantay" /> It was felt strongly in [[Ilocos Sur]] for 30 seconds or longer.<ref name="reuters1" />

===Metro Manila===
The earthquake was felt strongly in [[Metro Manila]], where minor damage to a hospital and several other buildings were reported.<ref name="reuters1">{{Cite news |date=July 27, 2022 |title=Powerful 7.1 magnitude earthquake strikes northern Philippines, strongly felt in Manila |agency=Reuters|url=https://www.reuters.com/world/asia-pacific/magnitude-72-earthquake-strikes-luzon-philippines-emsc-2022-07-27/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727020443/https://www.reuters.com/world/asia-pacific/magnitude-72-earthquake-strikes-luzon-philippines-emsc-2022-07-27/ |archive-date=July 27, 2022}}</ref><ref name="detik">{{Cite news |date=July 27, 2022 |title=Gempa M 7,1 di Filipina, Terasa Kuat di Manila-Layanan Kereta Disetop |work=[[detik.com]] |language=id |url=https://news.detik.com/internasional/d-6201018/gempa-m-71-di-filipina-terasa-kuat-di-manila-layanan-kereta-disetop/1 |access-date=October 26, 2022}}</ref> The earthquake prompted the [[Manila Metro Rail Transit System]] to suspend service during rush hour.<ref name="reuters1" /> Operations resumed at 10:12 a.m, with the exception of [[LRT Line 2]] due to inspections.<ref name="Sarao1">{{Cite news |last=Sarao |first=Zacarian |date=July 27, 2022 |title=MRT, LRT-1, PNR back to normal operations after strong Luzon quake |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1635661/mrt-lrt-1-pnr-back-to-normal-operations-after-strong-luzon-quake |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727062024/https://newsinfo.inquirer.net/1635661/mrt-lrt-1-pnr-back-to-normal-operations-after-strong-luzon-earthquake |archive-date=July 27, 2022}}</ref> Occupants of [[GSIS Building|the Senate building]] in Pasay were also evacuated.<ref name="reuters1" />

===Elsewhere===
In [[Apayao]], officials noted that two structures were damaged.<ref name="DeLeon">{{Cite news |last=de Leon |first=Dwight |date=July 27, 2022 |title=At least 4 dead in Cordillera after Luzon earthquake – DILG |work=Rappler |url=https://www.rappler.com/nation/death-toll-damage-luzon-earthquake-july-27-2022/ |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727073319/https://www.rappler.com/nation/death-toll-damage-luzon-earthquake-july-27-2022/ |archive-date=July 27, 2022}}</ref> Sixty-one schools were damaged, including 76 classrooms which were completely destroyed.<ref>{{Cite news |date=July 28, 2022 |title=Bilang ng mga paaralang winasak ng lindol, umabot sa 61 |language=tl |trans-title=Number of schools destroyed by the earthquake, reached 61 |work=Brigada News Philippines |url=https://brigadanews.ph/bilang-ng-mga-paaralang-winasak-ng-lindol-umabot-sa-61/ |url-status=live |access-date=July 28, 2022 |archive-url=https://ghostarchive.org/archive/20220728120755/https://brigadanews.ph/bilang-ng-mga-paaralang-winasak-ng-lindol-umabot-sa-61/ |archive-date=July 28, 2022}}</ref> In [[Kalinga (province)|Kalinga]], a worker fell from a building and suffered leg fractures.<ref name="VisayaJr1">{{Cite news |last=Visaya Jr. |first=Villamor |date=July 27, 2022 |title=Laborer hurt when he falls from building in Kalinga due to earthquake |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1635947/laborer-hurt-when-he-falls-from-building-in-kalinga-due-to-earthquake |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727100730/https://newsinfo.inquirer.net/1635947/laborer-hurt-when-he-falls-from-building-in-kalinga-due-to-earthquake |archive-date=July 27, 2022}}</ref> One fatality was also reported in the province.<ref name="BNFM1" /> In [[Ilocos Norte]], bricks fell from old buildings, including at an elementary school. Cracks also appeared in the public market.<ref name="Adriano1" />

The [[Philippine Ports Authority]] (PAA) said that hairline cracks occurred in a building at the Port of [[Currimao, Ilocos Norte]], and at a passenger terminal in [[Claveria, Cagayan]].<ref name="Sarao2">{{Cite news |last=Sarao |first=Zacarian |date=July 27, 2022 |title=Normal operations, no major damage in 8 ports after earthquake – PPA |newspaper=[[Philippine Daily Inquirer]] |url=https://newsinfo.inquirer.net/1636061/normal-operations-no-major-structural-damage-in-eight-ports-after-abra-earthquake-ppa |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727132312/https://newsinfo.inquirer.net/1636061/normal-operations-no-major-structural-damage-in-eight-ports-after-abra-earthquake-ppa |archive-date=July 27, 2022}}</ref> In [[Asipulo]], [[Ifugao]], a landslide partially buried an ambulance; four occupants including a pregnant woman escaped unhurt.<ref>{{Cite news |last=Julio |first=Harris |date=July 27, 2022 |title=Lindol nagdulot ng landslide sa Ifugao; ambulansya natabunan |language=tl |trans-title=Earthquake caused a landslide in Ifugao; ambulance covered |work=[[ABS-CBN]] |url=https://news.abs-cbn.com/news/07/27/22/lindol-nagdulot-ng-landslide-sa-ifugao-ambulansya-natabunan |url-status=live |access-date=July 28, 2022 |archive-url=https://archive.today/20220728010559/https://news.abs-cbn.com/news/07/27/22/lindol-nagdulot-ng-landslide-sa-ifugao-ambulansya-natabunan |archive-date=July 28, 2022}}</ref> There were two deaths in Benguet,<ref name="BNFM1">{{Cite news |last=Pinlac |first=Beatrice |date=July 28, 2022 |title=Luzon earthquake damaged 3,494 houses, 51 buildings |newspaper=Philippine Daily Inquirer |url=https://newsinfo.inquirer.net/1636975/luzon-earthquake-leaves-3494-houses-51-buildings-damaged-dilg/amp |url-status=live |access-date=July 28, 2022 |archive-url=https://web.archive.org/web/20220729024704/https://newsinfo.inquirer.net/1636975/luzon-earthquake-leaves-3494-houses-51-buildings-damaged-dilg/amp |archive-date=July 29, 2022}}</ref> including one in [[La Trinidad, Benguet|La Trinidad]], who died due to falling debris from a collapsed building.<ref>{{Cite news |last=Quitasol |first=Kimberlie |date=July 27, 2022 |title=1 dead as building collapses in Benguet town due to quake |newspaper=Philippine Daily Inquirer |url=https://newsinfo.inquirer.net/1635558/1-dead-as-building-collapses-in-benguet-town-due-to-quake |url-status=live |access-date=July 27, 2022 |archive-url=https://web.archive.org/web/20220727040210/https://newsinfo.inquirer.net/1635558/1-dead-as-building-collapses-in-benguet-town-due-to-quake |archive-date=July 27, 2022}}</ref> At least 62 buildings were damaged in the province.<ref name="DeLeon" />

==Gallery==
<gallery>
File:Bantay Bell Tower (MacArthur Highway, Bantay, Ilocos Sur; 11-14-2022).jpg|Bantay Bell Tower damaged by an earthquake
File:Saint Catherine of Alexandria Church (Tayum, Abra; 11-14-2022).jpg|Saint Catherine of Alexandria Church in [[Tayum|Tayum, Abra]] damaged by an earthquake
File:Vigan heritage village Calle Crisologo-Bonifacio building repair (Vigan, Ilocos Sur; 11-14-2022).jpg|Calle Crisologo, Vigan, Ilocos Sur damaged by an earthquake
File:Vigan Cathedral repair (Vigan, Ilocos Sur; 11-14-2022).jpg|Earthquake damages [[Vigan Cathedral]]
File:Saint Catherine of Alexandria Church entrance quake damage (Tayum, Abra; 11-14-2022).jpg|Damaged entrance of Saint Catherine of Alexandria Church
File:Abra debris 2022.jpg|A vehicle damaged by falling debris.
File:Saint Catherine of Alexandria Church bell tower quake damage (Tayum, Abra; 11-14-2022).jpg|Damage on the bell tower of Saint Catherine of Alexandria Church
</gallery>

==See also==
*[[List of earthquakes in 2022]]
*[[List of earthquakes in the Philippines]]
{{clear}}

==References==
{{reflist}}

==External links==
*[https://www.rappler.com/nation/luzon/earthquake-updates-news-information-areas-affected-damage-aftershocks-july-2022/ LUZON EARTHQUAKE: Updates, areas affected, damage, aftershocks] [[Rappler]]
*{{ReliefWeb-link|eq-2022-000273-phl}}
*{{EQ-isc-link|624591485}}
*[https://www.emsc-csem.org/Earthquake/earthquake.php?id=1153080 M 7.0 – LUZON, PHILIPPINES – 2022-07-27 00:43:23 UTC] [[European-Mediterranean Seismological Centre]] event page

{{Earthquakes in 2022}}
{{Earthquakes in the Philippines}}
{{Portal bar|Earth sciences|Philippines}}

{{DEFAULTSORT:Luzon earthquake, 2022}}
[[Category:2022 disasters in the Philippines]]
[[Category:2022 earthquakes]]
[[Category:Earthquakes in the Philippines]]
[[Category:History of Luzon|2022 earthquake]]
[[Category:History of Abra (province)]]
[[Category:History of Benguet]]
[[Category:History of Ilocos Sur]]
[[Category:July 2022 events in the Philippines]]
[[Category:Landslides in the Philippines]]