The alert level on Albay’s Mayon Volcano has been raised from 1 to 2 – meaning an “increasing level of unrest” – following an aerial survey yesterday that showed a significant increase in the summit dome from the previous 40,000 cubic meters to 48,000 cubic meters. The Philippine Institute of Volcanology and Seismology (Phivolcs) said … Continue reading Mayon Volcano alert level raised to 2