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DOST-PHIVOLCS Latest Updates of Kanlaon Volcano (Alert 1) on June 30, 2020

DOST-PHIVOLCS released the latest updates of Kanlaon Volcano (Alert 1) on June 30, 2020. According to Phivolcs, the Kanlaon Volcano’s seismic monitoring network recorded fifteen (15) volcano-tectonic earthquakes on the western flanks during the 24-hour observation period.

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

Phivolcs said a weak to moderate emission of white steam-laden plumes that rose 100 meters before drifting northwest to northeast was observed. Sulfur dioxide (SO2) emission was measured at an average of 116 tonnes/day on 27 June 2020.

According to Phivolcs, ground deformation data from continuous GPS measurements indicate a slight deflation of the lower and mid slopes since January 2020. However, short-term electronic tilt monitoring on the southeastern flanks recorded inflation on the lower to mid slopes that began on June 21, 2020. These parameters indicate hydrothermal or magmatic processes occurring beneath the edifice. 

Kanlaon volcano still on alert level 1 as of June 30, 2020. Kanlaon Alert Level 1 means that it is at an abnormal condition and has entered a period of unrest. The local government units and the public are strongly reminded 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. 

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