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MAYON VOLCANO BULLETIN, 23 August 2011, 8:00 A.M. PDF Print
Tuesday, 23 August 2011 00:04

Mayon Volcano’s (13.2500°N, 123.6833°E) seismic network detected five (5) volcanic earthquakes during the past 24 hours. Weak emission of white steam that drifted towards southwest was observed yesterday. Crater glow could not be observed during the night due to thick rain clouds that covered the summit. Ground deformation survey (precise leveling) last 31 May to 04 June 2011 indicated a slight inflation of the edifice as compared with 06-10 March 2011.

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.

DOST- PHIVOLCS

 

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