The Philippine Institute of Volcanology and Seismology (Phivolcs) has so far recorded 355 aftershocks following the 5.7-magnitude earthquake in Bukidnon on Monday evening, June 14.
The 5.7-magnitude tremor was felt at 10:38 p.m. Monday.
As of 7 a.m., Wednesday, June 16, Phivolcs reported 355 aftershocks, ranging between magnitudes 1.5 and 5.2. Six of these were felt.
The strongest aftershock measuring 5.2-magnitude was registered at around 10:49 p.m. on June 14.
Of these aftershocks, Phivolcs said 106 were plotted or located close to the epicenter of the 5.7-magnitude earthquake in the municipality of Kadingilan in Bukidnon province.
In an interview with CNN, Science and Technology Undersecretary and Phivolcs OIC Renato Solidum said a local fault in Bukidnon may have generated the June 14 earthquake.
He said that the same earthquake generator triggered a 5.9-magnitude quake on Nov. 18, 2019.
Bukidnon is part of the seismically active region of Northern Mindanao due to the presence of several active faults in the area which include the Central Mindanao Fault, Linugos River Fault, Cabanglasan Fault, Tagoloan River Fault, Lanao Fault System, and segments of the Mindanao Fault.
Other nearby local faults could also be sources of minor to strong earthquakes.