The PHIVOLCS Volcano Alert Level Scheme is a guide to understanding the state of an active volcano, the current threat it poses, and the ways to ensure public safety. An Alert Level represents the ...
LIGAO CITY—The Philippine Institute of Volcanology and Seismology (Phivolcs) on Thursday raised alert level 2 (moderate level of volcanic unrest) over Mayon Volcano, citing increasing unrest that ...