The explosion, which was phreatic in nature, was estimated to be 500 meters in height.
|Bulusan Volcano spews ash|
photo by Ronald Belleza via PDRRMO Sorsogon
Weak emissions of white steam plumes that drifted and crept downslope towards southwest were also observed.
Precise leveling surveys conducted from May 5 to May 14, 2015 indicate very slight inflation of the volcano’s edifice relative to the March 2015 surveys, the advisory added.
The provincial government of Sorsogon led by Provincial Administrator Robert Lee Rodrigueza has already dispatched a team to check on the residents of Juban and Casiguran.