MANILA, Philippines — A magnitude 5.5 earthquake struck off Davao Occidental Thursday morning, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. The agency identified the quake as an aftershock of the June 8, 2026, magnitude 7.8 offshore Sarangani earthquake. READ: Mindanao earthquake death toll climbs to 47 The aftershock struck 67 kilometers (km) southwest