Phivolcs raises Kanlaon Volcano alert level to 1

Phivolcs has raised the alert level of Kanlaon Volcano to Alert Level 1 due to increased seismic activity and signs of unrest.

This abnormal condition signifies that the volcano has entered a period of unrest, with 80 volcanic earthquakes recorded since March 9, primarily low-frequency events.

These seismic events suggest the presence of magmatic fluids beneath the edifice, potentially leading to steam-driven or phreatic eruptions.

Phivolcs noted ground deformation data indicating slow inflation of the edifice since 2017 and more pronounced inflation on the upper slopes in late January 2020.

These indicators suggest ongoing volcanic processes deep beneath the volcano, possibly due to degassing, hydrothermal activity, or magmatic intrusion.

As a precaution, Phivolcs reiterated the prohibition of entry within the four-kilometer Permanent Danger Zone due to the risk of sudden hazardous eruptions.

Aviation authorities have been advised to caution pilots against flying near the volcano's summit due to potential hazardous ejecta.

Phivolcs is also closely monitoring Taal and Mayon volcanoes, which are currently at Alert Level 2.