Bulusan Volcano’s seismic monitoring network recorded twenty two (22) volcanic earthquakes during the past 24 hours. Steaming activity could not be observed due to thick clouds covering the summit. Precise leveling survey results from February 23-28, 2016 indicated slight deflationary changes of the volcano’s edifice relative to December 2015, consistent with ground deformation measurements from continuous GPS data since February 2016.
Alert Level 1 (abnormal) remains in effect over Bulusan Volcano. This indicates that hydrothermal processes are underway beneath the volcano that may lead to steam-driven eruptions. The local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited due to the possibility of sudden and hazardous steam-driven or phreatic eruptions.
April 26 , 2016. Bulusan , Philippines :
Source : Phivolcs