A new surge of magma has risen in the volcano’s feeder pipe yesterday evening.
The activity has been intensifying since 10:10 PM local time by increasing incandescent lava blocks from the summit lava dome. Frequent and intense glowing rockfalls have been tumbling down the southeastern Bonga and southern Mi-isi gullies.
Sulfur dioxide (SO2) emissions reached to a 1063 tonnes on October.
The seismic station detected 727 volcano-tectonic earthquakes over the past 24 hours.
The short-term electronic tilt monitoring continues to detect the lower eastern slopes deflated since early July and the northwest flank inflated over the past week. However, the long-term ground deformation in general suggests the ongoing uplifting of the edifice since 2020.
In order to mitigate the risk, people are forbidden to enter an area of 6 km distance from the summit crater due to impacts of rockfalls, pyroclastic falls and/or phreatic eruptions.
The alert level for the volcano remains at Level 3.
Source: Philippine Institute of Volcanology and Seismology volcano activity update 22 October 2023
LOOK! A phase of increased lava effusion at Mayon began at 10:10 PM of 21 October 2023 with an abrupt intensification of incandescence at the summit crater followed by lava flow and rockfall at the Miisi and Bonga Gullies. 1/2#MayonVolcano pic.twitter.com/fHJabxGJb7
— PHIVOLCS-DOST (@phivolcs_dost) October 21, 2023