MAYON VOLCANO BULLETIN 26 August 2014 8:00 A.M. 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 that crept downslope toward south-southwest was observed. Thick rain clouds last night covered the summit preventing visual observation. Sulfur dioxide (SO2) flux was measured at an average of 1266 tonnes/day on 22 August 2014. Ground deformation data showed inflationary changes in the edifice from February 2014 based on precise leveling surveys in the 2nd week of June 2014, and edifice inflation from January 2012 baselines based on continuous tilt measurement. All the above data indicate that the volcano may have been experiencing increased volcanic gas emission and slight but persistent swelling due to the intrusion of magma beneath. Mayon Volcano’s alert status has been raised to Alert Level 2, which means that magma has most likely intruded at depth and that current conditions could eventually lead to a larger eruption. The public is strongly advised to be vigilant and to desist from entering the six (6) kilometer-radius Permanent Danger Zone (PDZ) to minimize risks from sudden explosions, rock fall and landslides. PHIVOLCS maintains close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.
Posted on: Tue, 26 Aug 2014 15:19:34 +0000
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