A magnitude-6.2 quake hit parts of Mindanao shortly after noon Saturday, with state seismologists warning of possible aftershocks.
But the Philippine Institute of Volcanology and Seismology said the quake occurred 100 km underground and was not felt very strongly.
“Ito ay may preliminary magnitude na 6.2 pero ito ay malalim (very deep underground), 100 km,” Phivolcs director Renato Solidum Jr. said in an interview on dzBB radio.
He cited initial information indicating the quake was recorded at 12:37 p.m., with the epicenter about 32 km northeast of Davao del Sur.
Solidum said the quake was felt at Intensity III in Davao City and Intensity II in General Santos and Butuan Cities.
Asked about the possibility of an aftershock, he said it was possible but may not be quite felt.
“Wala pa reported pero posible magkaroon ng aftershock,” he added.
The United States Geological Survey’s initial report said the epicenter was estimated at:
28km southeast of Caburan
65km east-southeast of Malapatan
68km east-southeast of Lun Pequeno
70km east of Glan
— LBG, GMA News