Phivolcs warns series of quakes off Ilocos Sur can trigger tsunami
MANILA, Philippines — The Office of Civil Defense (OCD) on Sunday called on local disaster officials in the Ilocos, Cagayan Valley, and Central Luzon regions to be on high alert and prepare for potential tsunami threats following a series of earthquakes offshore of Ilocos Sur. The earthquakes off the coast of Ilocos Sur since last