Mayon Volcano Bulletin

19 September 2006

8:00 AM

The seismic network around Mayon Volcano (13.2576’N, 123.6856’E) recorded 47 tremor episodes during the past 24 hours.  The diminishing number of tremors is associated with the continuing decline in the perceived rate of lava extrusion from the summit crater.  The Sulfur Dioxide emission rate of the volcanic plume remained at around 1500 tonnes/day.  Steaming activity from the volcano’s summit was moderate with white steam plumes drifting southwest.

Alert Level 3 remains in effect over Mayon Volcano which means that the new Extended Danger Zone (EDZ) of 7 kilometers from the summit crater covering the southeast sector and the normal 6 kilometer-radius Permanent Danger Zone (PDZ) for all other areas around the volcano should remain off-limits