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Bohol Fault System

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This is an old revision of this page, as edited by Mikenorton (talk | contribs) at 08:52, 14 October 2018 (this is a surface rupture of the 2013 earthquake along the NBF). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

For the other fault, see Marikina Valley Fault System.
Bohol Fault System
Surface rupture of the North Bohol Fault during the 2013 Bohol earthquake at Inabanga, Bohol
EtymologyBohol
Named byPhilippine Institute of Volcanology and Seismology
Year defined2013
CountryPhilippines
RegionCentral Visayas
StateBohol
CitiesNorth; Loon, Calape, Inabanga, Tubigon, Buenavista, Clarin, Sagbayan, Getafe, Trinidad
East; Loboc, Bilar, Batuan, Carmen
Characteristics
RangeInabanga & Clarin
SegmentsNorth Bohol Fault, East Bohol Fault
Depth30 km (19 mi)
Tectonics
PlatePhilippine Sea Plate and Sunda Plate
StatusActive
Earthquakes1981, 1990, 2013
TypeReverse fault
MovementDextral
AgeGelasian
OrogenyMindanao-Surigao-Davao Orogeny
Volcanic arc/beltBohol Corridor
Strong earthquakes in Luzon
1981
1981
2013
1990
1990
1990
1990
class=notpageimage|
All known recent magnitude ≥ 6.0 Mw in Bohol. In 1981 (6.0 Mw)[1], a doublet in 1990 (6.8 Mw) near Guindulman.[2] and the well-known 2013 Bohol earthquake (7.2 Mw).

Bohol Fault System, or also known as (BFS), is a reverse fault system in Bohol province, Philippines. This fault system contains two segments: the newly found North Bohol Fault following the 2013 Bohol earthquake,[3] and the East Bohol Fault.

The North Bohol fault is located in Inabanga and near Clarin, while the East Bohol fault passes through the SW part of Bohol at Tagbilaran and goes eastwards.

Bohol fault segments

North Bohol fault

North Bohol fault or Inabanga fault is a reverse fault located at Anonang, Inabanga which was found on 15 October 2013 during the Bohol earthquake. Based on Phivolcs, a new fault occurs only once in a century. The North Bohol fault, shaped as a hanging wall and also known as the "Great Wall of Bohol", became one of the tourist attractions in Bohol province.[4][5]

East Bohol fault

The East Bohol fault is a dominantly strike slip fault located at the southern portion of Bohol province, opposite to the North Bohol fault.[6][7]

Bohol earthquake

Main article: 2013 Bohol earthquake

The 2013 Bohol earthquake was a deadly event which happened on 15 October, striking the provinces of Bohol, Cebu, Negros Oriental, Masbate and Leyte. Teresito Bacolcol discovered the new fault in the area of Inabanga and Clarin.

See also

References

  1. ^ "M 6.0 - Bohol, Philippines". United States Geological Survey. Retrieved March 14, 2018.
  2. ^ "M 6.8 - Bohol, Philippines". United States Geological Survey. Retrieved March 14, 2018.,
  3. ^ Camille Diola (October 23, 2013). "Phivolcs discovers new fault system in Bohol quake". philstar.com. STAR Group of Publications. Retrieved 8 August 2016.
  4. ^ "North Bohol fault becomes tourist attraction". news.abs-cbn.com. ABS-CBN Corporation. October 28, 2013. Retrieved 8 August 2016.
  5. ^ "Post-earthquake Bohol: Silver lining after the disaster". Department of Environment and Natural Resources. Archived from the original on 25 January 2017. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  6. ^ Live Science, Becky Oskin (15 October 2013). "What Caused the Deadly Philippines Earthquake?". Archived from the original on 15 October 2013. {{cite news}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  7. ^ Bohol Chronicle, Chito M. Visarra (24 April 2016). "PHIVOLCS warns on quake due to East fault". Archived from the original on 29 April 2016. {{cite news}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
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