Phivolcs detects 19 volcanic earthquakes around Bulusan Volcano
November 17, 2010
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MANILA, Philippines (PNA) — The Philippine Institute of Volcanology and Seismology (Phivolcs) using the Bulusan Volcano‘s seismic network has detected 19 volcanic earthquakes during the past 24-hour observation period.
In its update, Phivolcs said during times of good visibility, weak emission of white steam was observed rising from the volcano’s northwest vent while no steaming was observed from the crater and southeast vent.
The summit of the volcano was most of the time obscured by thick clouds.
Tuesday’s measurement of sulfur dioxide emission rate yielded an average value of 44 tonnes per day.
The status of Bulusan Volcano is still rated at Alert Level 1.
The public is strongly advised not to enter inside the four-kilometer radius Permanent Danger Zone (PDZ) because it may be affected by sudden steam explosions.
People residing near valleys and streams are also asked to be vigilant against sediment-laden stream flows in the event of heavy and continuous rainfall.
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 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.
Phivolcs, an agency under the Department of Science and Technology (DoST), is closely monitoring Bulusan Volcano’s activity and any new significant development will be immediately posted to all concerned.