A 5.5-magnitude earthquake struck Occidental Mindoro at 6:42 p.m. on Monday, Jan. 20, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported.
Phivolcs initially reported the quake's origin near Calatagan, Batangas, and measured it at magnitude 5.4, but later revised it to 5.5.
In the updated bulletin, the earthquake’s epicenter was located 23 kilometers northeast of Lubang, Occidental Mindoro at a depth of 116 kilometers.
It was felt at Intensity IV (moderately strong) Lubang, Occidental Mindoro and Intensity III (weak) in Quezon City, Makati City, Taguig City, Obando in Bulacan, Hermosa in Bataan, Cainta in Rizal, and Cabuyao City in Laguna.
It was also registered at Intensity II (slightly felt) in Puerto Galera, Oriental Mindoro; Cuenca and Talisay in Batangas, and Tagaytay City and Bacoor in Cavite and Intensity I (scarcely perceptible) in Muntinlupa City.
Phivolcs said the earthquake was tectonic in origin, caused by the movement of an active fault in the area.
It advised the public to remain vigilant as aftershocks may follow.