Philippine Standard Time
 

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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.

LATEST NEWS

August 08, 2022

Poster of the 27 July 2022 Magnitude 7.0 Northwestern Luzon Earthquake

At 08:43 AM Philippine Standard Time (PST), 27 July 2022, a major earthquake with magnitude (Mw) 7.0 shook the provinces in northwestern Luzon and adjacent areas including Metro Manila. The earthquake has an epicenter located at 17.63°N, 120.63°E – 3 km N 50° W of Tayum (Abra) with a depth…

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August 05, 2022

Preliminary Coseismic Interferogram and Line-of-Sight Displacement of the 27 July 2022 M7.0 Northwestern Luzon Earthquake

    The interferogram (top) and line-of-sight (LOS) displacement map (below) were generated using Sentinel-1 images (21 July - 02 August) descending track. The maps reveal a north-south deformation pattern along the Abra River Fault with up to ~20 cm measured displacement along the satellite's line of sight. DInSAR analysis…

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July 28, 2022

M7.0 Northwestern Luzon Earthquake Update as of 28 July 2022

At 08:43 AM Philippine Standard Time (PST) of 27 July 2022 (Wednesday), a major Magnitude (Mw) 7.0 earthquake shook the provinces in northwestern Luzon and adjacent areas including Metro Manila. The earthquake has an epicenter located 17.64°N, 120.63°E - 003 km N 45° W of Tayum (Abra) and a depth…

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July 27, 2022

PRIMER ON THE 27 July 2022 MAGNITUDE (Mw) 7.0 Northwestern Luzon EARTHQUAKE

Update as of 27 July 2022   What is happening in northwestern Luzon? At 08:43 AM Philippine Standard Time (PST) of 27 July 2022 (Wednesday), a major Magnitude (Mw) 7.0 earthquake shook the provinces in northwestern Luzon and adjacent areas including Metro Manila. The earthquake has an epicenter located 17.64°N,…

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July 18, 2022

DOST-PHIVOLCS Upskills Kabataan to be EQ and Volcano Hazard Disaster-Ready

The Department of Science and Technology - Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) kicked off its 70th anniversary celebration with the “InfoBit@PHIVOLCS 70th year: Kabataan, Handa ang may Alam” webinar for Grades 6-12 learners on 20 June 2022 via Zoom. The activity aimed to increase the participants’ awareness of…

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