Philippine Standard Time

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Weak to moderate emission of white steam plumes that drifted west-southwest was observed. Precise leveling data obtained on September 16-21, 2017 indicated slight inflation of the edifice relative to May 2017 survey. Continuous GPS and tiltmeter measurements also indicate inflationary trend since July 2016. Sulfur dioxide (SO2) emission was measured at an average of 259 tonnes/day on October 04, 2017.

Alert Level 1 remains in effect over Mayon Volcano, which means that it is at abnormal condition. Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6-kilometer radius Permanent Danger Zone (PDZ) due to the perennial life-threatening dangers of rockfalls, landslides/avalanches at the middle to upper slope, sudden ash puffs and steam-driven or phreatic eruptions from the summit. Active stream/river channels and those identified as perennially lahar-prone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall. DOST-PHIVOLCS maintains its close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.


July 11, 2024


Local Concessionaires with at least 2 years of experience in operating a canteen / cafeteria are invited to submit their price proposal / quotation and pre-qualification requirements to the PHIVOLCS Canteen Committee on or before July 19, 2024 through manual submission or email. Kindly read the full Terms of Reference…

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June 13, 2024

The 11 June 2024 MW 5.1 Offshore Palawan Earthquake

    Fig 1: Map showing the location and the focal mechanism solution (reverse fault) of the 11 June 2024 Mw 5.1 offshore Palawan earthquake. Black arrows indicate the location of the possible offshore fault that generated the earthquake. Data sources: Earthquake location and focal mechanism from PHIVOLCS, SAR-derived topography…

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May 22, 2024


The HAZARD ASSESSMENT SERVICES will be suspended on Thursday and Friday, May 23 - 24, 2024, to give way for the staff to participate in an Institute-wide activity.   We thank you for your consideration.  

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May 14, 2024

PRESS RELEASE: DOST-PHIVOLCS, Caraga Region’s Risk Communicators Team Up for an Effective Geohazard Communication

In its continuous effort to bridge the gap between technical concepts and public understanding of geological hazards, the Department of Science and Technology - Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS), in coordination with the Regional Offices of DOST, the Philippine Information Agency (PIA), and the Office of Civil Defense…

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May 08, 2024

PRESS RELEASE: DOST-PHIVOLCS establishes the Visayas Cluster Monitoring Center for Earthquake and Tsunami in San Fernando, Cebu

The Department of Science and Technology - Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) will officially inaugurate the PHIVOLCS Visayas Cluster Monitoring Center for Earthquake and Tsunami (PVCMCET) on 10 May 2024 8:30 AM at PVCMCET, Purok 11-Santan, Brgy. North Poblacion, San Fernando, Cebu. The PVCMCET is a strategic state-of-the-art…

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