Monday, February 6, 2012

Mag 6.7 Quake Hits Philippines - Tsunami Warning

Magnitude 6.7 Earthquake 
in Philippines
Prompts Tsunami Warning

The 6.7-magnitude quake hit in a narrow strait just off Negros Island. The Philippine Institute of Volcanology and Seismology issued the local tsunami alert for central islands, saying the quake could trigger a 3ft wave along the island's eastern coast as well as west of the country's second-largest city, Cebu.

Note: the PTWC did not expect a Pacific-wide tsunami as a result of the quake and no warning was issued.
The epicentere was closest to Tayasan, a coastal town of about 32,000 people flanked by mountains in Negros Oriental province.

According to Benito Ramos, head of the Office of Civil Defense, a child there died when a concrete fence of a house collapsed.  Due to the aftershocks, it was too dangerous for authorities to search buildings, so the number is expected to rise.

UPDATE:  At least 43 people killed, 40 missing and 100 injured, many buildings damaged or destroyed, at least 9 bridges damaged and some landslides occurred in Negros Oriental.

Location9.964°N, 123.246°E
Depth20 km (12.4 miles)
Distances72 km (44 miles) N of Dumaguete, Negros, Philippines
74 km (45 miles) WNW of Tagbilaran, Bohol, Philippines
80 km (49 miles) WSW of Cebu, Cebu, Philippines
569 km (353 miles) SSE of MANILA, Philippines
Location Uncertaintyhorizontal +/- 13.5 km (8.4 miles); depth +/- 11.5 km (7.1 miles)
ParametersNST= 72, Nph= 75, Dmin=744.7 km, Rmss=1.03 sec, Gp= 43°,
M-type=regional moment magnitude (Mw), Version=8
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusb0007wgq

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