(PHIVOLCS) A 5.1-magnitude earthquake occurred in Cagayan at around 4:42 p.m., Tuesday, May 17, said the Philippine Institute of Volcanology and Seismology (Phivolcs). Phivolcs traced the epicenter of the earthquake at 31 kilometers (km) southeast of Dalupiri Island in Calayan, Cagayan, and was shallow at a depth of 16 km. … Continue reading Magnitude 5.1 quake jolts Cagayan — Phivolcs