In brief
A moderately explosive eruption of Mayon Volcano caused a 3,000‑meter plume and prompted the Philippine Institute of Volcanology and Seismology to raise the alert level to 3, leading to the evacuation of over 1,400 people from the 6‑km permanent danger zone.
On Friday, Oct. 31, 2026, a moderately explosive eruption of Mayon Volcano in the northern Philippines produced a 3,000‑meter plume and forced the evacuation of more than 1,400 residents from Albay province, Xinhua reported.
Eruption Details
The explosive episode occurred at about 11:53 a.m. local time, the same hour that scientists noted a rapid increase in seismic tremor over the volcano’s summit.
In volcanology, a “moderately explosive eruption” is defined by the sudden expulsion of gas‑laden magma that generates a brief, turbulent plume but does not produce sustained lateral blasts or super‑volcanic eruptions. The terminology used by the Philippine Institute of Volcanology and Seismology reflects the intensity of the eruption relative to the volcano’s usual activity cycle.
A “plume” is a vertical column of ash, gas, and volcanic material that rises from the crater. The 3,000‑meter (nearly 10,000‑foot) column observed at Mayon represents the height to which the eruptive plume was lofted before dispersing into the atmosphere—an indicator that the eruption released a significant volume of material.
According to Xinhua, the Philippine Institute of Volcanology and Seismology raised Mayon’s alert level from 2 to 3 on the same day. Alert levels are a graded scale that assess the probability of eruption and potential impact; Level 5 is the highest and indicates the most severe threat. A jump to Level 3 signals that significant volcanic activity is expected to continue and that the potential for further eruptions is high.
Evacuation and Risk Management
The government’s response focused on the volcano’s 6‑kilometer permanent danger zone, a region surrounding the summit where historic eruptions have produced ashfall and pyroclastic density currents. Residents within this zone were moved to safer areas, the authorities explained.
The Philippine National Police reinforced its mandate to prohibit entry into the permanent danger zone. The restriction is a standard protocol that is triggered when an alert level rises above Level 1, as it is with Level 3 at Mayon. The direct purpose is to mitigate exposure to lethal hazards such as falling volcanic ash, debris, or sudden columns of gas and glass.
Evacuation sites were selected for their relative distance from the volcano’s flank and for their ability to accommodate thousands of people. Local officials, as reported by Xinhua, coordinated transportation and temporary shelter arrangements in neighboring municipalities, emphasizing the need for rapid relocation to avoid future exposure.
Mayon Volcano is renowned for its near‑perfect conical shape and is consistently monitored due to its active status. The volcano’s long record of explosive eruptions—including the 2018 event that forced mass relocations—underscores the seriousness of the current Level 3 designation.
With the 3,000‑meter ash plume still visible in the days preceding the evacuation announcement, the risk of further activity remained high. Authorities continued to monitor ground deformation and gas emissions, using satellite imagery and seismic networks to refine the risk assessment and to determine when residents could safely return.
As of the Xinhua report, more than 1,400 people had already been relocated from the permanent danger zone, and the situation is classified as still evolving. The Philippine Institute of Volcanology and Seismology will issue additional updates as the monitoring data suggest changes in the eruption’s intensity or periodicity.
