Mayon Volcano: Increased Lava Effusion Triggers Pyroclastic Events in Miisi and Bonga Gullies


On the 24th of October 2023, Mayon Volcano, a prominent volcano in the Philippines, exhibited heightened volcanic activity as increased lava effusion from its summit crater led to several significant events. The eruption generated frequent incandescent rockfalls and, notably, numerous pyroclastic density current (PDC) occurrences in the Miisi and Bonga Gullies. The recorded number of PDC events reached a substantial 53 by 11:00 PM, underscoring the intensity of the volcanic activity.

The footage captured by the infrared camera at the Mayon Volcano Observatory offered a visual testament to the unfolding volcanic events. The presence of incandescent rockfalls and PDCs further underscores the potential hazards associated with Mayon’s volcanic activity. The continuous monitoring and reporting of such events play a crucial role in assessing the safety and well-being of the communities residing near the volcano. As of now, the alert level remains at Level 3, a status that has been maintained since June 8, 2023. This underscores the importance of staying vigilant and prepared for any potential developments in the volcano’s activity.

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