MAYON VOLCANO BULLETIN 13 September 2017 8:00 A.M. PDF Print
Wednesday, 13 September 2017 07:31

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Degassing at the active vent could not be observed due to thick clouds covering the summit. Precise leveling data obtained on May 11-18, 2017 indicated inflation of the edifice relative to February 2017 survey. Continuous GPS and Tiltmeter measurements also indicate inflationary trend since July 2016. Sulfur dioxide (SO2) emission was measured at an average of 534 tonnes/day on September 12, 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.