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Phivolcs observed crater glow on Mayon Volcano these past two days

The Philippine Institute of Volcanology and Seismology (Phivolcs) released the Mayon Volcano advisory on Wednesday stating that these past two days a crater glow was seen.

Based on Phivolcs’ 4 p.m. bulletin, the hot magmatic gases heating the overlying atmosphere was more likely the cause of the crater glow. It also suggests “the possibility that remnant magma may be quietly rising to the shallow levels of the edifice.”

Mayon Volcano
Photo courtesy of ABS-CBN

In addition, the agency stated that it has detected slight swelling or inflation of the volcano’s edifice, which began in February 2019. Changes occurring within magma already emplaced beneath the edifice rather than by renewed magma intrusion events is what drove the recent observations.

Talking to Inquirer.net, Dave Rivera, Phivolcs science research specialist said that the recent activity of Mayon Volcano is “normal” since it is an active volcano.

Based on the report, Alert Level 2 remains hoisted over Mayon. With this, it is “strongly recommended that entry into the six kilometer-radius Permanent Danger Zone and a precautionary seven kilometer-radius Extended Danger Zone in the south-southwest to east-northeast sector, stretching from Anoling, Camalig to Sta. Misericordia, Sto. Domingo, should be strictly prohibited”.

Furthermore, Phivolcs inform the people on possible ashfall, sudden explosions, lava collapse, and pyroclastic density currents can occur “without warning”. This can also threaten areas in the upper to middle slopes of Mayon.

The statement of agency added that “people residing close to these danger areas are also advised to observe precautions against rockfalls, pyroclastic density currents, and ashfall. Active stream/river channels and those identified as perennially lahar-prone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall.”

Here is the statement from Phivolcs.

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