Bulusan emits ash, steam anew

June 23 2016 11:16 AM

File image from PHIVOLCS-DOST's Twitter account
File image from PHIVOLCS-DOST’s Twitter account

Mount Bulusan in Sorsogon emitted ash and steam anew on Thursday morning, June 23, the Philippine Institute of Volcanology and Seismology said.

Phivolcs said that Bulusan exhibited “vigorous steaming activity” with “dirty white steam plumes” that crept downslope west-northwest, from 9 to 9:18 a.m.

“The dirty white plumes suggest a low energy ash emission,” it said, adding no seismic signal was detected prior or during the event.

It added Alert Level 1 (abnormal) remains in effect over Bulusan, meaning hydrothermal processes are ongoing beneath the volcano that may lead to more steam-driven eruptions.

Phivolcs reminded the local government units and the public against entering the four-kilometer-radius Permanent Danger Zone due to the possibility of sudden and hazardous steam-driven or phreatic eruptions.

Also, it reminded civil aviation authorities to advise pilots to avoi

flying close to the volcano’s summit as ash from any sudden phreatic eruption can be hazardous to aircraft.

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 case of heavy and prolonged rainfall.

Earlier, Phivolcs said Bulusan had no volcanic earthquake in the past 24 hours. MC

READ: Steam-driven explosion recorded at Mt. Bulusan

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