The magnitude 6.9 earthquake that struck Cebu province on Sept. 30 has generated over 7,000 aftershocks, the state seismologist said Monday.
In its 8 a.m. update, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported a total of 7,027 aftershocks.
Of these, 1,375 were plotted while 31 were felt. The aftershocks ranged from magnitude 1 to 5.1.
Phivolcs initially recorded the earthquake at magnitude 6.7 before later upgrading it to 6.9. The quake occurred at 9:59 p.m. on Sept. 30, with its epicenter located 21 kilometers northeast of Bogo City, Cebu.
The agency also identified the fault that caused the earthquake. Its quick response team located the inland extension of the newly named Bogo Bay Fault in Sitio Looc, Barangay Nailon, Bogo City.
‘The team observed fault scraps, open cracks, and small pressure mounds within a 2-meter-wide deformation zone,’ Phivolcs said. /mcm