Residents near Mayon Volcano in the Philippines have been advised to stay vigilant as the volcano continues an effusive eruption that began 19 days ago, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).
Ongoing Eruptive Activity
Monitoring between 12 a.m. on January 25 and 12 a.m. on January 26 revealed continuous lava effusion, alongside episodic minor strombolian activity – small, explosive bursts of lava. During this 24-hour period, Mayon Volcano exhibited significant activity, including 229 rockfall events and 45 pyroclastic density currents.
Volcanic Measurements
Phivolcs reported 13 volcanic earthquakes and one ongoing tremor. A visible crater glow was observed, and sulfur dioxide emissions remained high, reaching 1,221 tons. A volcanic plume extended 700 meters in multiple directions.
Mayon Volcano remains at Alert Level 3, indicating the potential for hazardous eruptions. Phivolcs strictly prohibits entry into the six-kilometer permanent danger zone and advises heightened vigilance for those in the extended danger zone.
Even light ashfall could present health risks, reduce visibility for road travel, and disrupt air travel near the volcano. Potential hazards include rockfalls, landslides, lava flows, ballistic fragments, lava fountaining, explosions, pyroclastic density currents, and lahars, particularly during periods of heavy or prolonged rainfall.
Frequently Asked Questions
What is strombolian activity?
Strombolian activity is a type of eruption involving small but explosive bursts of lava from the summit.
What is a pyroclastic density current?
In 24 hours, Mayon recorded 45 pyroclastic density currents.
What areas are considered dangerous?
Entry into the six-kilometer permanent danger zone is strictly prohibited, while those in the extended danger zone should exercise heightened vigilance.
Given the ongoing activity and potential hazards, what steps do you think are most important for local communities to take to ensure their safety?