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|MAYON VOLCANO BULLETIN 21 June 2012 8:00 A.M.|
|Thursday, 21 June 2012 07:49|
Mayon Volcano’s (13.2500°N, 123.6833°E) seismic network recorded two (2) volcanic earthquakes during the past 24-hour observation period. Weak emission of white steam plumes drifting northeast was observed. The crater was visible last night but no glow could be observed. Sulfur dioxide (SO2) emission rate on 15 June 2012 was measured at an average of 356 tonnes per day. Ground deformation survey (precise levelling) last 01-04 May 2012 showed no significant change compared to February 2012.
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.