REGIONAL
Advocates Philippines
Mayon Volcano Remains Under Alert Level 3
This file photo taken was 6/15/23 at 7:07PM. Photo courtesy of Nehemiah Manzanilla Sitiar
Mayon Volcano, one of the Philippines' most active volcanoes, remains under Alert Level 3, indicating a state of intensified unrest or magmatic unrest.
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has provided a summary of the volcano's activities following a 24-hour observation period from 5:00 a.m. yesterday to 5:00 a.m. today.
According to PHIVOLCS, the volcanic parameters recorded indicate a very slow effusion of lava flow, reaching maximum lengths of 1.5 kilometers. Lava collapses were observed primarily on the Mi-isi and Bonga Gullies, located within a 3.3-kilometer distance from the crater. These events signify the continued movement of magma within the volcano.
Seismic activity during the monitoring period was relatively low, with no volcanic earthquakes recorded. However, there were 265 instances of rockfall events and five Pyroclastic Density Current events.
The release of sulfur dioxide gas was measured at 889 tonnes per day on June 18.
The plume emitted by the volcano was approximately 600 meters tall, characterized as a moderate emission with a general westward drift.
Ground deformation data revealed an inflation of the volcano edifice.
In light of these observations, PHIVOLCS advises the public to adhere to safety precautions.
Entry into the 6-kilometer radius Permanent Danger Zone (PDZ) remains strictly prohibited. Additionally, flying any aircraft near the volcano is not allowed due to potential hazards.
PHIVOLCS also reminds residents and visitors of the possible dangers that can occur during this period of volcanic unrest. These hazards include rockfalls, landslides, and avalanches. Ballistic fragments, which are propelled during explosive eruptions, pose a significant risk. Lava flows and fountaining are also potential threats, along with pyroclastic density currents and moderate-sized explosions. Furthermore, lahars, or volcanic mudflows, may occur during heavy and prolonged rainfall.
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has provided a summary of the volcano's activities following a 24-hour observation period from 5:00 a.m. yesterday to 5:00 a.m. today.
According to PHIVOLCS, the volcanic parameters recorded indicate a very slow effusion of lava flow, reaching maximum lengths of 1.5 kilometers. Lava collapses were observed primarily on the Mi-isi and Bonga Gullies, located within a 3.3-kilometer distance from the crater. These events signify the continued movement of magma within the volcano.
Seismic activity during the monitoring period was relatively low, with no volcanic earthquakes recorded. However, there were 265 instances of rockfall events and five Pyroclastic Density Current events.
The release of sulfur dioxide gas was measured at 889 tonnes per day on June 18.
The plume emitted by the volcano was approximately 600 meters tall, characterized as a moderate emission with a general westward drift.
Ground deformation data revealed an inflation of the volcano edifice.
In light of these observations, PHIVOLCS advises the public to adhere to safety precautions.
Entry into the 6-kilometer radius Permanent Danger Zone (PDZ) remains strictly prohibited. Additionally, flying any aircraft near the volcano is not allowed due to potential hazards.
PHIVOLCS also reminds residents and visitors of the possible dangers that can occur during this period of volcanic unrest. These hazards include rockfalls, landslides, and avalanches. Ballistic fragments, which are propelled during explosive eruptions, pose a significant risk. Lava flows and fountaining are also potential threats, along with pyroclastic density currents and moderate-sized explosions. Furthermore, lahars, or volcanic mudflows, may occur during heavy and prolonged rainfall.
Jun 19, 2023
