Increased activity observed in Mt. Bulusan anew

Health Protection

The Philippine Institute of Volcanology and Seismology (Phivolcs) on Wednesday afternoon said increased activity has been observed anew in Mount Bulusan.

In an advisory issued at 5 p.m., Phivolcs said 213 volcanic earthquakes were recorded since 5 a.m. of June 24.

The strongest of these quakes caused by movements or eruptions of magma from the volcano was magnitude 3.5 recorded at 11:27 p.m. of June 24. This quake was felt at Intensity III in the municipalities of Irosin and Bulusan, Sorsogon.

At 1:39 p.m. Wednesday, a magnitude 2.3 imperceptible (not felt) volcanic quake was also recorded.

Both volcanic quakes were located on the south-southeastern flank of Bulusan edifice, and approximately 3 kilometers deep.

Phivolcs warned of the possibility of a renewed eruptive activity from the Bulusan summit and potentially from the vents of its southern sides.

The volcano is still under Alert Level 1 (low-level unrest).

Those living within valleys and along river/stream channels, especially on the southeast, southwest and northwest slopes of the volcano edifice, should be vigilant against sediment-laden stream flows and lahars during heavy and prolonged rainfall.

Phivolcs also reminded local government units and the public that entry into the 4-kilometer radius permanent danger zone must be strictly prohibited, and that vigilance in the 2-kilometer extended danger zone on the southeast sector must be exercised due to the increased possibilities of sudden and hazardous phreatic eruptions.

Source: Philippines News Agency