Just this Monday, the institute placed Mayon under Alert Level 2 due to increasing unrest. Pilots are also advised to avoid flying close to the summit as ash from any sudden eruption can be hazardous to aircraft. What happenedRepeated collapse of the growing summit dome of Mayon has generated an increasing number and volume of rockfall events since the volcano was placed under Alert Level 2, according to Phivolcs. A total of 267 rockfall events and two volcanic earthquakes were recorded from Monday to Thursday. Only 54 rockfall events were logged from June 1 to 4.
