The Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded a 5.1-magnitude earthquake in Antique province on Saturday noon, Aug. 13.
It was initially measured as a magnitude 4.8 quake but Phivolcs later revised it to magnitude 5.1.
Phivolcs said the quake struck 20 kilometers (km) southwest of the municipality of Anini-y in Antique province at 12:25 p.m.
It was felt at Intensity IV as a “moderately strong” tremor in Anini-y, Tobias Fornier, and San Jose de Buenavista in Antique.
Belison and Sibalom in Antique and Iloilo City felt the quake at Intensity III (weak).
Meanwhile, Bugasong, Barbaza, and Patnongon in Antique felt it at Intensity II (slightly felt).
Phivolcs noted that the earthquake was tectonic, which means it was caused by the movement of an active fault near the area.
Phivolcs advised the public to stay vigilant as aftershocks may occur.