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Ghio Ong - The Philippine Star
December 18, 2025 | 12:00am
The rockfall, detected at 9:29 a.m., was caused by the detachment or “spalling” of lava from the summit crater, Phivolcs said in an advisory.
STAR / Edd Gumban
MANILA, Philippines — A rockfall event occurred at Mayon Volcano yesterday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
The rockfall, detected at 9:29 a.m., was caused by the detachment or “spalling” of lava from the summit crater, Phivolcs said in an advisory.
“The rock traveled along Mi-isi Gully and rested within a kilometer of the summit,” it said.
The incident was on top of 10 rockfall events recorded in Mayon since midnight.
Entry into the volcano‘s six-kilometer-radius permanent danger zone is prohibited.
