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Awareness and Preparedness
|BULUSAN VOLCANO BULLETIN, 21 December 2010, 8:00 A.M.|
|Tuesday, 21 December 2010 07:50|
The seismic network around Bulusan Volcano (12°46.2’N, 124°03’E) detected two (2) volcanic earthquakes during the past 24 hours. Steaming activity at the crater and known thermal vents was not observed due to thick rain clouds that covered the volcano’s summit. Likewise, no sulfur dioxide (SO2) measurement was conducted yesterday due to rainy weather.
The alert status of Bulusan Volcano remains at Alert Level 1. 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. Due to the prevailing wind direction, residents in the northwest and southwest sectors of the volcano are reminded to take precautions against ashfalls. Civil aviation authorities must also advise 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, people living near valleys and river/stream channels should be vigilant against sediment-laden stream flows and lahars in the event of 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.