Philippines: ‘restive’ Mayon Volcano put on alert level 3
September 2014 – MANILA, Philippines – Mayon Volcano in the province of Albay was placed on “Alert Level 3” on Monday evening, September 15, after showing signs of “relatively high unrest,” the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said. In a bulletin issued at 10:00 pm, PHIVOLCS observed 39 rockfall events from 5:00 am to 8:00 pm on September 15, symptoms of the build-up of magma at the summit dome. At least 32 low frequency volcanic earthquakes were also recorded, indicating magma intrusion or volcanic gas activity. PHIVOLCS-DOST raised the alert status of Mayon Volcano from Alert Level 2 to Alert Level 3 which is equivalent to a “Critical Alert” in the agency’s 5-level alert system. This means that the volcano is exhibiting relatively high unrest, magma is at the crater, and that an eruption is possible within weeks.
Phivolcs previously raised Alert Level 2 for Mayon, an active…
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