Tremors increase around Mayon, as gov’t rushes evacuation

A total of 344 tremors and 109 earthquakes were recorded and sulfur dioxide emission rate shot up to 12, 745 tons per day--all of which indicate an explosive eruption may occur anytime, according to the Philippine Institute for Volcanology and Seismology (Phivolcs).

The volcano has also blasted 500-meter high ash columns from its crater nine times, three times on Monday evening, said Ernesto Corpus, chief of the government's Volcano Monitoring and Eruption Prediction Unit.