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MAYON VOLCANO BULLETIN, 24 November 2012, 8:00 A.M. PDF Print
Saturday, 24 November 2012 00:00

Mayon Volcano’s (13.2500°N, 123.6833°E) seismic network detected two (2) volcanic earthquakes during the past 24-hour observation period. Wispy emission of white steam plumes was observed. The crater was visible last night but no glow could be observed.  Sulfur dioxide (SO2) emission rate on 01 November 2012 was measured at an average of 153 tonnes per day. Ground deformation survey (precise levelling) last 14 -18 November 2012 showed no significant changes compared to August 2012, although the volcano is still slightly inflated compared to January 2010 baselines. GPS and Tilt data from January to October this year indicate a slight inflation and deflation of the edifice at the lower and upper slopes, respectively.

 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 perennially 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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