|BULUSAN VOLCANO BULLETIN, 26 November 2010, 8:00 A.M|
|Tuesday, 30 November 2010 10:08|
Bulusan Volcano’s (12°46.2’N, 124°03’E) seismic network recorded three (3) volcanic quakes during the 24-hour observation period. Moderate white steam plume that rose to about 150 m above the NW vent was observed drifting southwest. Meanwhile, weak to moderate emission of white steam plume from the volcano’s crater and other known thermal vents were also observed.
Alert Level 1 remains in effect over Bulusan Volcano. The public is reminded not to venture inside the 4-kilometer radius Permanent Danger Zone (PDZ) because the area is at risk to sudden steam and ash explosions. Due to the prevailing wind direction, residents located in the northwest and southwest sectors of the volcano are advised to take precautions against ashfalls. Civil aviation authorities must also warn pilots to avoid flying close to the volcano’s summit as ejected ash and volcanic fragments from sudden explosions may pose hazards to aircrafts. Furthermore, residents near valleys and river/stream channels should be watchful against sediment-laden stream flows and lahars because ash and other loose volcanic materials may be remobilized during heavy and prolonged rainfall. DOST-PHIVOLCS is closely monitoring Bulusan Volcano’s activity and any new significant development will be immediately relayed to all concerned.