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Mayon Raised to Alert Level 3 After Dome Collapse Triggers Pyroclastic Flows

Officials urge evacuation within 6 kilometers, citing dome collapse, pyroclastic density currents, and fresh ash.

Overview

  • Phivolcs elevated Mayon to Alert Level 3 on January 6 after the summit dome collapsed and generated pyroclastic density currents reaching up to 2 kilometers.
  • The Tokyo VAAC reported a brief ash emission to about 2,700 meters on January 7, aligning with signs of shallow magmatic activity.
  • Authorities ordered people inside the 6-kilometer Permanent Danger Zone to evacuate due to hazards from lava flows, falling rocks, toxic gases, and dome-collapse currents.
  • Since January 1, monitoring detected 346 rockfalls and four volcanic earthquakes, with instruments also showing ongoing ground inflation since 2024.
  • Civil aviation was advised to avoid the summit due to possible ash, and communities along southern drainages were told to watch for lahar during rain.