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Bulusan Volcano’s seismic monitoring network did not record any volcanic earthquakes during the past 24 hours. Weak emission of white steam-laden plumes that rose to 50 meters from the southeast vent before drifting southwest was observed. Precise leveling data obtained on November 20 – 29, 2017 indicated a slight deflation of the edifice, consistent with short-term deflationary trends in both tilt and continuous GPS data in the last quarter of 2017. However, the edifice remains slightly inflated since July 2016 based on continuous GPS data.

Alert Level 1 (abnormal) status remains in effect over Bulusan Volcano, which means that it is currently in a state of unrest probably driven by hydrothermal processes that could generate steam driven or phreatic eruptions. Local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited and that vigilance in the Extended Danger Zone (EDZ) must be exercised due to the increased possibilities of sudden and hazardous phreatic eruptions. Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as ash from any sudden phreatic eruption can be hazardous to aircraft. Furthermore, people living within valleys and along river/stream channels especially on the southeast, southwest and northwest sector of the edifice 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 condition and any new development will be communicated to all concerned stakeholders.

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November 12, 2019

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November 08, 2019

UPDATE ON THE OCTOBER 2019 COTABATO FAULT SYSTEM EARTHQUAKE SERIES

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November 04, 2019

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WHAT'S NEW

November 20, 2019

MAYON VOLCANO BULLETIN: 20 November 2019 08:00 A.M.

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Moderate emission of white steam-laden plumes that rose 650 meters before drifting north-northwest was observed. Sulfur dioxide (SO2) emission…
November 20, 2019

TAAL VOLCANO BULLETIN: 20 November 2019 8:00 A.M.

Taal Volcano’s seismic monitoring network recorded sixty-eight (68) volcanic earthquakes during the 24-hour observation period. Field measurements on 14 November 2019 at the western sector of the Main Crater Lake yielded a decrease in water…
November 20, 2019

BULUSAN VOLCANO BULLETIN: 20 November 2019 08:00 A.M.

Bulusan Volcano’s seismic monitoring network recorded one (1) volcanic earthquake during the 24-hour observation period. Weak emission of white steam-laden plumes that rose 50 meters before drifting northeast was observed coming from the active vents.…
November 19, 2019

TAAL VOLCANO BULLETIN 19 November 2019 8:00 A.M.

Taal Volcano’s seismic monitoring network recorded fifty (50) volcanic earthquakes during the 24-hour observation period. Field measurements on 14 November 2019 at the western sector of the Main Crater Lake yielded a decrease in water…
November 19, 2019

MAYON VOLCANO BULLETIN 19 November 2019 08:00 A.M.

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Moderate emission of white steam-laden plumes that crept downslope before drifting west-northwest, east-northeast and northeast was observed. Sulfur dioxide…
November 19, 2019

BULUSAN VOLCANO BULLETIN 19 November 2019 08:00 A.M.

Bulusan Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Ground deformation data from Precise Leveling surveys obtained on 20 – 28 October 2019 indicate slight inflation of the…
November 18, 2019

BULUSAN VOLCANO BULLETIN 18 November 2019 08:00 A.M.

Bulusan Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Ground deformation data from Precise Leveling surveys obtained on 20 – 28 October 2019 indicate slight inflation of the…