|BULUSAN VOLCANO BULLETIN, 10 December 2010, 8:00 A.M.|
|Friday, 10 December 2010 08:39|
Bulusan Volcano’s (12°46.2’N, 124°03’E) seismic network recorded two (2) volcanic earthquakes during the past 24-hour period. Steaming activity at the crater and known thermal vents was not observed due to thick rain clouds covering the summit. Yesterday’s measurement of sulfur dioxide (SO2) emission rate yielded a value of 4 tonnes per day.
Alert Level 1 remains hoisted over Bulusan Volcano. The public is strongly advised not to enter the 4-kilometer radius Permanent Danger Zone (PDZ) because the area is at risk to sudden steam and ash explosions. Because of the prevailing wind direction, people residing in the northwest and southwest sectors of the volcano are reminded 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 vigilant against sediment-laden stream flows and lahars in the event of heavy and continuous rainfall. DOST-PHIVOLCS is closely monitoring Bulusan Volcano’s activity and any new significant development will be immediately relayed to all concerned.