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Phivolcs detects increasing number of Mayon quakes

(UPDATE) THE Philippine Institute of Volcanology and Seismology (Phivolcs) has issued a notice following an increase in seismic activity and ground deformation in Mayon Volcano in Albay Province.

Phivolcs Director Teresito 'Toto' Bacolcol on Tuesday reiterated that Alert Level 3 remains over the volcano since it was raised on June 8.