Manila, Aug. 5 -- The Philippine Institute of Volcanology and Seismology (Phivolcs) on Wednesday downgraded Mayon Volcano's alert status from Alert Level 3 (magmatic unrest / increased tendency towards hazardous eruption) to Alert Level 2 (moderate level of unrest).

In its bulletin, Phivolcs said the lowering of Mayon's alert level was based on monitoring network and observation of day-to-day conditions that recorded a general decline in unrest since July 23, as indicated by different monitored parameters.

On the activity at the summit crater, eruptive activity at Mayon's summit crater has declined based on the decreasing record of Strombolian events, lava effusion, and lava collapse-fed rockfall and pyroclastic density currents (PDCs)....