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M7.2 Quake Strikes Balilihan, Philippines

Posted by feww on October 15, 2013

UPDATE at 09:45UTC – October 15, 2013

  • The quake death toll has reached a least 36, with about 100 others injured, or reported as missing both in Bohol and Cebu islands.

UPDATE at 06:00UTC – October 15, 2013

  • Death toll from the quake has climbed to at least 24, with about 20 others injured, according to local sources.
  • USGS has raised its estimate for shaking-related fatalities and economic losses to “Yellow alert.”
  • At least 11 significant aftershocks have occurred, including 9 events on Bohol Island, as of posting.

UPDATE at 02:00UTC – October 15, 2013

PAGER: Green – Estimated Fatalities: Low, with some economic damage
ShakeMap: VIII – severe shaking causing heavy to moderate damage

  • At least 8 people have been killed, according to local reports.

USGS EQ Hazard Program has revised its initial details of the quake as follows

  • Magnitude:  7.1Mw
  • Time: 2013-10-15 09:12:32 UTC+09:00
  • Location: 9.866°N 124.011°E (2km NE of Catigbian, Philippines)
  • Depth: 20.0km

At least 5 significant aftershocks have struck the region , as of UPDATE at 02:00UTC – October 15, 2013

bohol eq
UPDATED Earthquake Location Map. Source: USGS/EHP. Enhanced by FIRE-EARTH Blog.

Powerful Quake Strikes 5km E of Balilihan, Bohol Island, Philippines

The quake struck onshore at a depth of about 56.8km. The mainshock was followed by at least 2 significant aftershocks measuring 5.4 and 5.3Mw respectively, as of posting.

  • The island province of Bohol is located in the Central Visayas region. Bohol is the tenth largest island of the Philippines with a population of about 1.5 million.
  • Full extent of the damage, or injuries was unknown, as of posting, but there were reports of significant damage to roads and electricity lines throughout the region.
  • NO tsunami warning or advisories issued.

Tsunami Evaluation
[Pacific Tsunami Warning Center/NOAA/NWS – Issued At 00:22UTC 15 Oct 2013]

No destructive widespread tsunami threat exists based on historical earthquake and tsunami data.

However, earthquakes of this size sometimes generate local tsunamis that can be destructive along coasts located within a hundred kilometers of the earthquake epicenter. Authorities in the region of the epicenter should be aware of this possibility and take appropriate action.

Earthquake Location Map

phil quake 15oct2013
Earthquake Location Map. Source: USGS/EHP. Enhanced by FIRE-EARTH Blog.

phil quake -image credit Charlotte Knowles
Quake damage in Bohol. Image credit Charlotte Knowles

Santo Niño de Cebú RC Church damaged by quake
Santo Niño de Cebú RC Church damaged by the quake. Image credit: Franz Estores

More details to follow…

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