Philippine Institute of Volcanology and Seismology, Powered by Joomla!
MAYON VOLCANO BULLETIN 29 November 2015 8:00 A.M. PDF Print
Sunday, 29 November 2015 05:55

Mayon Volcano’s seismic monitoring did not detect any volcanic earthquake during the past 24 hours. Steaming activity and crater glow could not be observed due to thick clouds covering the summit. Precise leveling survey results from August 25-30, 2015 indicated very slight deflation of the edifice relative to July 2015, consistent with short-term deflation recorded by continuous GPS since August 2015 and electronic tilt since March 2015.

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.