Residents stand next to a long earthen wall which formed following the
Oct. 15 earthquake in Barangay Anonang in Inabanga, Bohol. Phivolcs
scientists said the wall is the face of a previously unknown fault line
which caused the magnitude 7.2 quake. FREEMAN NEWS PHOTO
Inabanga is earthquake’s ‘ground zero’
By BenCyrus G. EllorinCebu Daily News
Geologists from the Philippine Institute of Volcanology and
Seismology (Phivolcs) found “ground zero” or the fault that triggered
the devastating magnitude 7.2 earthquake.
The discovery on Monday confirmed the existence of a previously unknown fault in western Bohol.
The Oct. 15 earthquake claimed around 200 lives and caused major infrastructure damage, including Spanish-era churches in Bohol and Cebu.
Immediately after the earthquake, Phivolcs said the tremor was caused by the movement of the East Bohol Fault.
The epicenter, first reported as Carmen town, was later adjusted to the general area between Sagbayan and Catigbian towns in north central Bohol based on the distribution of aftershocks.
Geologists found a 5-kilometer surface rupture that extended from barangay Anonang in Inabanga town to barangay New Anonang in Buenavista town.
“That fault motion caused the earthquake,” Renato Solidum, director of Phivolcs told ABS-CBN News Channel’s Talkback yesterday morning.
The ground rupture pushed the ground upward from two to three meters, cutting through mountains, roads and possibly settlement areas.
Phivolcs teams are still studying the extent of the fault line which could extend 100 kilometers or longer.
Aside from structural damage, residents in southern Cebu towns of Alegria and Badian and Carcar City have complained that ground water turned to “milo” brown.
Read More HereThe discovery on Monday confirmed the existence of a previously unknown fault in western Bohol.
The Oct. 15 earthquake claimed around 200 lives and caused major infrastructure damage, including Spanish-era churches in Bohol and Cebu.
Immediately after the earthquake, Phivolcs said the tremor was caused by the movement of the East Bohol Fault.
The epicenter, first reported as Carmen town, was later adjusted to the general area between Sagbayan and Catigbian towns in north central Bohol based on the distribution of aftershocks.
Geologists found a 5-kilometer surface rupture that extended from barangay Anonang in Inabanga town to barangay New Anonang in Buenavista town.
“That fault motion caused the earthquake,” Renato Solidum, director of Phivolcs told ABS-CBN News Channel’s Talkback yesterday morning.
The ground rupture pushed the ground upward from two to three meters, cutting through mountains, roads and possibly settlement areas.
Phivolcs teams are still studying the extent of the fault line which could extend 100 kilometers or longer.
Meanwhile,
aftershocks recorded by Phivolcs indicate a general distribution from
north Bohol to the offshores of Dalaguete, Alcoy and Boljoon towns in
southern Cebu.
The data was plotted on a map by Jessie Alaivar Floren, a private Geographic Informatino System expert in Cebu.
Aside from structural damage, residents in southern Cebu towns of Alegria and Badian and Carcar City have complained that ground water turned to “milo” brown.
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