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PHIVOLCS Recorded 26 Volcanic Earthquakes at Kanlaon Volcano

In the 8:00 AM volcano bulletin of the Philippine Institute of Volcanology and Seismology (PHIVOLCS) today, February 15, 2021 (Monday), twenty-six (26) volcanic earthquakes during the 24-hour observation period were recorded in Kanlaon Volcano.

“Moderate emission of white steam-laden plumes that rose 500 meters before drifting southwest and northwest was observed. Sulfur dioxide (SO2) emission was measured at an average of 1130 tonnes/day on 13 February 2021,” PHIVOLCS added.

Also, ground deformation data from continuous GPS and electronic tilt measurements have been recording slight inflation of the lower and middle slopes since June 2020.

Furthermore, according to the bulletin, the said parameters may indicate hydrothermal, tectonic, or deep-seated magmatic processes occurring deep beneath the edifice.

Alert Level 1

The Kanlaon Volcano is at Alert Level 1 or at an abnormal condition and has entered a period of unrest and PHIVOLS are reminding the local government units (LGUs) and the public that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) must be strictly prohibited due to the further possibilities of sudden and hazardous steam-driven or phreatic eruptions.

In adddition, seven (7) volcanic earthquakes during the 24-hour observation period were recorded in Kanlaon yesterday, February 14, 2021 (Sunday).

Kanlaon Volcano Bulletin | Feb. 13

On the advisory of PHIVOLCS on Feb. 13, twenty-eight (28) volcanic earthquakes between 11 and 13 February 2021 and these earthquakes ranged in energy from ML0.7 to ML2.2 and occurred at shallow depths to depths of 10 kilometers across the northern to eastern portions of the edifice.

According to PHIVOLCS, “Kanlaon is in a restive state, with increased possibilities of phreatic or steam-driven explosions occurring at the summit crater.”

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Source: PHIVOLCS | Feb. 15, PHIVOLCS | Feb.13

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