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PHIVOLCS: Over 130 rockfalls at Mayon Volcano in 24 hours as lava dome grows
Mayon Volcano remains under Alert Level 3 due to stronger magma pressurization compared to its 2023 eruption, as reported by the Philippine Institute of Volcanology and Seismology (Phivolcs).
Over 130 rockfall events were recorded in the past 24 hours, a significant increase attributed to the growth of a viscous lava dome at the summit.
Phivolcs Director Dr. Teresito Bacolcol noted that rockfall activity has been rising since November, with a further climb in the last week of December and the first week of 2026.
This continuous accumulation of thick, viscous lava is causing instability and generating frequent rockfalls and pyroclastic density currents (PDCs).
While the current behavior resembles the effusive nature of the 2023 eruption, the increased magma pressurization suggests the unrest may persist longer.
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The Philippine Institute of Volcanology and Seismology (Phivolcs) has raised Mayon Volcano to Alert Level 2, indicating moderate unrest.
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The Philippine Institute of Volcanology and Seismology (Phivolcs) raised Mayon Volcano to Alert Level 3, indicating an increased tendency toward hazardous eruptions due to lava dome growth and pyroclastic density currents.
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Mayon Volcano has been placed under Alert Level 3, indicating intensified magmatic unrest and potential for dome collapse.
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The Department of the Interior and Local Government (DILG) has directed local government units (LGUs) to evacuate residents from the six-kilometer permanent danger zone (PDZ) surrounding Mayon Volcano in Albay.
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The Civil Aviation Authority of the Philippines (CAAP) has extended flight restrictions around Mayon Volcano until 9 a.m. on Monday, January 5, 2026, due to increased volcanic activity.
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