MANILA (Philippine Daily Inquirer/ANN): The Philippine Institute of Volcanology and Seismology (Phivolcs) on Wednesday (Feb 5) said that the summit crater of the Mayon volcano has been detected having a crater glow in the past two days. In a 4pm bulletin, Phivolcs said that the crater glow was likely caused by hot magmatic gases heating the overlying atmosphere. The crater glow, Phivolcs added, suggests “the possibility that remnant magma may be quietly rising to the shallow levels of the edifice.”Phivolcs further said that the volcano’s edifice was detected having slight swelling or inflation, which began in February 2019. “People residing close to these danger areas are also advised to observe precautions against rockfalls, pyroclastic density currents, and ashfall. During that time, it prompted Phivolcs to raise Alert Level 4 over Mayon.

Source: The Star February 05, 2020 11:03 UTC