Mayon Volcano Seismic Activity Rises
LEGAZPI CITY — Officials reported a noticeable increase in seismic activity at Mayon Volcano, signaling a potential phreatic eruption. The Philippine Institute of Volcanology and Seismology (Phivolcs) highlighted that the rise in earthquakes and ground swelling could indicate a “deep magma intrusion” beneath the volcano’s surface.
Signs of Deep Magma Intrusion Under Mayon Volcano
According to local authorities, the volcano has been showing uneven inflation patterns since late 2024. Specifically, the northeastern sector began swelling in October 2024, followed by the south to southwestern areas starting March 2025. These changes in ground deformation suggest magma movement deep beneath the volcano.
Recent Seismic Data and Gas Emissions
Community members noted that since midnight on Saturday, 26 volcanic earthquakes were recorded at depths ranging from 5 to 10 kilometers beneath Mayon’s northeast flank. Additionally, sulfur dioxide emissions measured 609 tons per day as of September 3, reflecting ongoing volcanic activity.
Safety Measures and Alert Status
Authorities have urged residents and visitors to avoid entering the permanent danger zone within a 6-kilometer radius of the volcano. This precaution aims to protect people from hazards such as rockfalls, landslides, and sudden pyroclastic density currents that may arise from a phreatic eruption. Mayon Volcano remains under Alert Level 1, signaling heightened but manageable volcanic unrest.
For more news and updates on Mayon Volcano seismic activity, visit Filipinokami.com.
