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MAYON VOLCANO BULLETIN 26 September 2012 8:00 A.M. PDF Print
Tuesday, 25 September 2012 23:40

Mayon Volcano’s (13.2500°N, 123.6833°E) seismic network did not detect any volcanic earthquake during the past 24-hour observation period.  Moderate emission of white steam plumes drifting east-southeast was observed. Crater glow could not be observed last night due to thick clouds covering the summit. Sulfur dioxide (SO2) emission rate on 29 August 2012 was measured at an average of 239 tonnes per day. Ground deformation survey (precise levelling) conducted last 07-11 August 2012 indicated a slight inflation of the edifice as compared with 01-04 May 2012 survey.

Mayon Volcano’s alert status remains at Alert Level 1.  Although this means that no eruption is imminent, it is strongly advised that the public refrain from entering the 6-kilometer radius Permanent Danger Zone (PDZ) due to the threat of sudden steam-driven eruptions and rockfalls from the upper and middle slopes of the volcano. Active stream/river channels and those identified as perenially lahar prone areas on all sectors of the volcano should also be avoided especially during bad weather condition or when there is heavy and prolonged rainfall. DOST-PHIVOLCS is closely monitoring Mayon Volcano’s activity and any new development will be relayed to all concerned.

 

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