Kanlaon alert level raised
Gilbert Bayoran (The Philippine Star) - August 19, 2017 - 4:00pm

BACOLOD CITY, Philippines – The Philippine Institute of Volcanology and Seismology (Phivolcs) has raised the alert level on Kanlaon Volcano in Negros from zero to one.

Phivolcs said the volcano exhibited abnormal condition, citing the 244 volcanic earthquakes that have been recorded since June 24.

The increased seismic activity maybe succeeded by steam-driven phreatic eruptions despite the absence of steaming from the active vent, according to the agency.

Ground deformation data also indicate that the edifice of the volcano has remained inflated.

“These parameters indicate that volcanic processes are underway deep beneath the edifice that maybe caused by deep-seated degassing or hydrothermal activity or magmatic intrusion,” Phivolcs said.

Phivolcs warned the public that entry into the four-kilometer permanent danger zone is strictly prohibited due to possibilities of sudden and hazardous steam-driven or phreatic eruptions.

Pilots were advised to avoid flying close to the summit of the volcano since ash from any sudden phreatic eruption can be hazardous to aircraft.

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