A 4.5-magnitude aftershock rocked Davao de Oro shortly before Sunday evening, Feb. 5, said the Philippine Institute of Volcanology and Seismology (Phivolcs) in an earthquake bulletin.
Phivolcs said the quake struck 7 kilometers northwest of Compostela, Davao de Oro around 5:59 p.m.
It was felt at Intensity V (strong) in Nabunturan, Davao de Oro; Intensity II (slightly felt) in Compostela and New Bataan in Davao de Oro; and Intensity I (scarcely perceptible) in Maco, Davao de Oro.
Phivolcs’ instruments also recorded the tremor at Intensity I in Davao City.
The 4.5-magnitude quake was determined to be an aftershock of the 6.0-magnitude tremor that jolted Davao de Oro on Feb. 1
Phivolcs said the 6.0-magnitude earthquake was generated by the movement along the Philippine Fault—a major tectonic feature that transects the whole Philippine archipelago from northwestern Luzon to southeastern Mindanao.