A magnitude 5.8 earthquake strikes off the western Philippines, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS). The temblor occurs at 10:38 a.m. local time, with the epicenter located about 21 km southwest of Mamburao in Occidental Mindoro. PHIVOLCS initially places the quake at a depth of about 10 km. Following the quake, residents in Manila and other parts of the country report feeling tremors, according to accounts cited by media outlets. The available reports present the earthquake’s location, time, and depth as reported in PHIVOLCS’ first advisory. No further details such as damage estimates, injuries, or tsunami warnings are included in the provided summaries. Further updates would depend on subsequent official bulletins from PHIVOLCS and other government agencies.