Volcano Uptick: Bulusan Volcano in the Philippines is rumbling
Bulusan Volcano eruption last month
An ash eruption lasting 11 minutes occurred at Bulusan Volcano in Sorsogon Friday afternoon, the Philippine Institute of Volcanology and Seismology said.
In a 2 p.m. advisory, PHIVOLCS said the eruption was recorded as an explosion-type earthquake that lasted 11 minutes.
Also, it said a "short 200-meter-high gray ash plume" drifted west-northwest was observed until the eruption ended at 1:21 p.m.
However, PHIVOLCS said the alert level at Bulusan remains at 1 (abnormal), meaning "hydrothermal processes are underway beneath the volcano that may lead to more steam-driven eruptions."
It reminded the local government units and the public against venturing into the four-kilometer-radius Permanent Danger Zone (PDZ) "due to the possibility of sudden and hazardous steam-driven or phreatic eruptions."
"Civil aviation authorities must also advise pilots to avoid flying close to the volcano's summit as ash from any sudden phreatic eruption can be hazardous to aircraft," it added.
Also, it said people living within valleys and along river/stream channels especially on the southwest and northwest sector of the edifice should be vigilant against sediment-laden stream flows and lahar in the event of heavy and prolonged rainfall.
Bulusan Volcano is the 6th volcano this month to erupt or show activity.
Thanks to: http://www.thebigwobble.org