Bulusan Volcano’s (12°46.2’N, 124°03’E) seismic monitoring network recorded one (1) explosion-type and four (4) volcanic earthquakes during the past 24 hours. The explosion event occurred at 2:55 PM yesterday, lasting for 7 minutes based on its seismic record, and produced a 1.5 kilometer-high grayish ash plume above the summit before drifting towards west-southwest. A low-level ash cloud, possibly from a short pyroclastic current, was also generated over the northwest upper slopes, but cloud cover partially obscured observation.
Rumbling sound was reportedly heard by residents of Brgys. Puting Sapa, Rangas and Mabini in Juban, Sorsogon. Meanwhile, traces of ash fell on Brgys. Bacolod, Buraburan, Mapili and Puting Sapa, also in Juban. ·The event was followed by continuous emission of a voluminous to moderate-volume dirty white plume, later turning into a white steam plume, that reached 250 m high above the summit before drifting southwest. Precise leveling surveys on May 5-14, 2015 indicate very slight inflation of the volcano’s edifice relative to March 2015.
Alert Level 1 (abnormal) remains in effect over Bulusan Volcano.
Bulusan, Philippines :
Source : Phivolcs .
Photo : khaleejtimes.com