TAGBILARAN CITY, (PNA) -– Experts of the Philippine Institute of Volcanology and Seismology (Phivolcs) swung into action Tuesday to probe an unknown fault line of magnitude 7.2 earthquake that jolted Bohol and neighboring provinces on Oct. 15, 2013, Phivolcs provincial officer Nolan Evangelista said in an interview.
Jane Punongbayan, Phivolcs supervising science research specialist, confirmed, in a separate interview, this move to gather more indications of a fault line.
She bared there’s one fault line discovered by the experts the day before in hinterland Barangay of Anonang, Inabanga town, more than 70 kms. from Tagbilaran City.
It is five kilometers long and could reach up to 100 kms from where it was found.
The faultline was around three meters high that looks like a “hanging wall” with what Phivolcs called “big displacement” of earth materials.
Punongbayan also confirmed that the actual epicenter is located “northeast-southwest” between the towns of Catigbian and Sagbayan, said to be the worst hit by the main shock on that day.
“It’s definitely the epicenter,” she said.
Earlier, Philvolcs pinpointed the epicenter was about two kilometers southeast of Carmen town hours after the earthquake last week. But Punongbayan said it was but initial findings.