Phivolcs warns of increases seismic activity at Kanlaon Volcano | ABS-CBN

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Phivolcs warns of increases seismic activity at Kanlaon Volcano

Phivolcs warns of increases seismic activity at Kanlaon Volcano

ABS-CBN News

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MANILA — The Philippine Institute of Volcanology and Seismology on Monday said it has recorded increased seismic activity at Kanlaon Volcano.

In an advisory, Phivolcs said it has recorded a total of 25 volcanic-tectonic (VT) earthquakes since morning, with the last 22 earthquakes recorded from 10:35 p.m. Monday.

At least five of the earthquakes were reportedly felt by residents of Canlaon City, Negros Oriental.

“VT earthquakes are generated by rock fracturing processes and the increase in VT activity may possibly precede eruptive activity,” Phivolcs said.

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Kanlaon Volcano remains in Alert Level 2, but Phivolcs said the current seismic activity “may lead to eruptive unrest and an increase in the Alert Level.”

“The public is strongly advised to be ready and vigilant, and to avoid entry into the four (4) kilometer-radius Permanent Danger Zone (PDZ) to minimize risks from volcanic hazards such as pyroclastic density currents, ballistic projectiles, rockfall and others,” it added.

Phivolcs likewise said pilots should avoid flying close to the volcano’s summit “as ash and ballistic fragments from sudden eruption can be hazardous to aircraft.”

Communities living beside river systems near the volcano are also advised to take precautionary measures in when heavy rainfall over the volcano has been forecast.

In June, Mount Kanlaon exploded for six minutes, sending a plume of ash, rocks and gases five kilometers into the sky.

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At least 2,800 people have moved into emergency centers, according to official figures, due to falling ash, gases and the threat of lahars from the volcano.

Lahars are mammoth flows of volcanic debris deposited on the volcano's slopes and unleashed by heavy rain. They can bury villages.

Kanlaon is one of 24 active volcanoes in the archipelago nation.

Heavy ashfalls can collapse roofs of houses and gum up jet engines.

The most powerful volcanic explosion in the Philippines in recent years was the 1991 eruption of Pinatubo, about 100 kilometers from Manila, which killed more than 800 people.

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