Philippine Standard Time


On its 24-Hour Regional Weather Forecast issued at 5:00 AM today (January 21, 2019), the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) forecasted that the Bicol Region will be experiencing cloudy skies with scattered rainshowers and thunderstorms caused by Tropical Depression Amang. Specifically, Sorsogon province might be impacted by possible flash flooding and landslides due to scattered moderate to heavy rains.

In view of the above, PHIVOLCS strongly recommends vigilance and readiness of communities in pre-determined zones of lahar hazards in Bulusan Volcano. Prolonged and heavy rainfall may cause excessive erosion of existing pyroclastic deposits in the upper slopes of Bulusan Volcano, which can trigger lahars in rivers draining the southeastern, southwestern and northwestern flanks. Potential lahars can threaten downstream communities along the Malunoy (Patag), Mapaso, Cadac-an, Tinampo and Cogon Rivers in Irosin and the Añog-Rangas River in Juban. PHIVOLCS reiterates that entry into the four kilometer-radius  Permanent Danger Zone should be avoided due to the possibility of sudden and hazardous steam-driven or phreatic eruption, rockfall, landslide, and lahars. PHIVOLCS is closely monitoring Bulusan Volcano’s condition and any new development will be relayed to all concerned.