2012 Pernik earthquake
|Date||22 May 2012EEST03:00|
|Magnitude||5.6 Mw (or 5.8 ML)|
|Depth||9.4 km (5.8 mi)|
|Countries or regions||Pernik Province, Sofia|
|Max. intensity||MM VI (Strong)|
|Aftershocks||4.6 Mw; 4.3 Mw 4.5 Mw;|
The 2012 Pernik earthquake was a 5.6 Mw (or 5.8 ML) magnitude earthquake, which struck 24 km (15 miles) west of Bulgaria's capital Sofia and 9 km (6 miles) north-northwest of the provincial center Pernik on 22 May 2012 at 3:00 am local time (00:00 UTC) at a depth of 9.4 kilometers (5.8 mi).
An emergency situation was declared in Pernik in the immediate aftermath of the earthquake. Mayors from nearby villages reported no significant damages. Many residents in Sofia were reported to have fled their homes and gathered in the streets. Xinhua journalists in the capital reported that Internet connectivity had been cut off by the quake.
According to the civil defense office, there were widespread reports of toppled chimneys, cracked walls and broken windows in the Pernik area, where a state of emergency was declared for 24 hours. One of the tall chimneys of the city's Republika Power Plant partially collapsed during the tremor, and as a result the capacity has been temporarily reduced. The government sent 14 teams to the area to assess the damage, and their initial reports concluded that around 60% of all homes have been affected. At least 150 people have been relocated to temporary shelters, and several schools and kindergartens in the area will have to demolished or rebuilt. A total of 14,000 buildings were inspected, and approximately 50 of them will be torn down. Initial estimates put the damage costs in the capital Sofia at around 1.3 million leva (around 600,000 euro), while the city of Pernik suffered at least 20 million leva (around 9.1 million euro).
According to the United States Geological Survey a 4.6-magnitude aftershock (4.7-magnitude aftershock according to the German Research Centre for Geosciences) struck the same area approximately ninety minutes after the initial tremor, while a second aftershock, measuring 4.3 in magnitude, occurred 42 minutes following the first one. Bulgarian seismologists have reported about 15 aftershocks in the days after the original tremor.
- "Magnitude 5.6 - BULGARIA". USGS. 2012-05-21. Retrieved 2012-05-21.
- "PAGER - M 5.6 - BULGARIA". Earthquake.usgs.gov. 2012-05-21. Retrieved 2012-05-21.
- "Magnitude 4.3 - BULGARIA (USGS)". Earthquake.usgs.gov. Retrieved 2012-05-22.
- "Magnitude 4.3 - BULGARIA". Earthquake.usgs.gov. Retrieved 2012-05-22.
- Bulgarian National Seismological Data Center, Area: Pernik, 2012-05-22 00:00:31, Lat: 42.6; Lon: 23; Depth: 10km, Mag: 5.8
- "AFP: Quake rocks Bulgaria, no casualties". Google.com. Retrieved 2012-05-22.
- Novinite.Com, Pernik declares quake emergency, dam wall safe, May 22, 2012.
- "5.8-magnitude Quake Hits Bulgaria". Xinhua. 2012-05-22. Retrieved 2012-05-21.
- http://bnr.bg/sites/horizont/Society/Bulgaria/Pages/2305zemetresenie.aspx (Bulgarian National Radio)
- http://news.bgnes.com/view/1007296 (BGNES)
- http://bnr.bg/sites/horizont/Society/Bulgaria/Pages/0523jhhhggh.aspx (Bulgarian National Radio)
- http://www.vesti.bg/index.phtml?tid=40&oid=4833251 (Vesti.bg)
- http://www.focus-news.net/?id=h3816 (Focus News)
- "Earthquake Damages in Bulgaria's Sofia Estimated at BGN 1.3 M". Novinite. 28 May 2012. Retrieved 28 May 2012.
- http://www.blitz.bg/news/article/140173 Blitz.bg
- Report on that afterchock on the GFZ's site
- News Report - Novinite.com
- USGS Magnitude 4.6 BULGARIA