Bulusan Volcano in Sorsogon, Philippines, has been placed under Alert Level 1 by Phivolcs after recording 475 volcanic earthquakes since March 15, indicating a return to low-level unrest.

The Philippine Institute of Volcanology and Seismology (Phivolcs) reported that Mayon Volcano has ejected 40 million cubic meters of volcanic material since its Alert Level 3 was raised, but no major explosion has been observed.

The Philippine Institute of Volcanology and Seismology (Phivolcs) reported increased seismic activity at Bulusan Volcano in Sorsogon since February 26.