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PIA Press Release
2006/10/25

Mt Bulusan spews ash anew

Sorsogon City (25 October) -- Mt. Bulusan exploded anew early morning Monday, October 23, sending a column of dark brown ash one-kilometer skyward from its crater.

The Philippine Institute of Volcanology and Seismology (Phivolcs) said that the column of ash occurring at 6:30 Monday morning was accompanied by a small explosion quake, which lasted some three minutes and 45 seconds.

Phivolcs seismographs also recorded six volcanic earthquakes 30 minutes before the explosion and recorded Sulfur Dioxide emission rate of 787 tons per day, which rate is way above its baseline of 500 tons per day.

Field investigation made immediately after the latest explosive episode showed that light ash fall covered the Barangays of Mondon, Tinampo and Gulang-gulang in Irosin town by as much as 0.5 millimeter of volcanic ash.

Alert level number one remained in effect at Bulusan Volcano where similar explosive activities are expected from time to time, Phivolcs renewed it warning to the public not to venture inside the 4-km permanent danger zone (PDZ) since sudden ash explosions are likely to affect said area.

Areas beyond but near the 4-km PDZ, especially near river channels should be considered as risky because these areas are susceptible to potentially life-threatening volcanic flows. (PIA Sorsogon) [top]

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