MAYON Volcano REDRAWS Its Danger Line—119 Days Erupting As Studies 7km Expansion For First Time! - Video

Monday May 4, 2026, 4:00 a.m. local time. PHIVOLCS — the Philippine Institute of Volcanology and Seismology — releases its 24-hour bulletin on Mayon Volcano in Albay province, Philippines. Buried in the rockfall column is a number 45 percent higher than the day before. 411 rockfall events recorded since Sunday morning. 4 pyroclastic density current signals. Sulfur dioxide emissions at 1,829 tonnes per day. Crater glow visible to the naked eye. The volcanic edifice showing simultaneous deflation across most of the mountain and localized inflation on the northeastern flank. The same bulletin includes a sentence almost nowhere reported in international coverage: PHIVOLCS authorities are formally studying expansion of the Permanent Danger Zone from the 6-kilometer radius that has been in place since 1992, to 7 kilometers. The line on the map of how dangerous Mayon is, is being moved — for the first time in 119 days of continuous eruption, for the first time since the line was drawn after the deaths of 1993. Mayon, the most perfectly symmetrical volcano on Earth, has been erupting without pause since January 6, 2026. The current episode has been officially classified this week as the strongest effusive eruption Mayon has produced in modern monitoring history. On Saturday May 2 at 4:28 p.m. local time, the lava flow advancing down the Mi-isi Gully on the southern flank — already 1.6 km from the summit — collapsed under the weight of new material being pushed into it from the crater above. Hot debris became airborne, gravity-driven, and accelerated downhill. By 5:38 p.m., the largest of the resulting pyroclastic density currents had run 4 kilometers from the source, with internal temperatures around 700 degrees Celsius (over 1,300 Fahrenheit). Dr. Teresito Bacolcol, Director of PHIVOLCS, summarized the event in his first leadership statement on Monday: "On Saturday, there was a PDC due to the repeated collapse of hot lava from the summit or upper slope." 52 barangays across four municipalities — Camalig, Guinobatan, Ligao City, and Daraga — have been buried in ashfall. Camalig alone reports ashfall in 17 barangays. Schools are closed in Guinobatan and Camalig. Crops were buried just days before harvest. Hotels in Camalig had guests and workers flee due to ash emission. President Ferdinand Marcos Jr. spoke to reporters in Manila on Monday: he assured that all major thoroughfares in Albay would be cleared by end of day, then added one phrase in Filipino — "huwag lang magbuga ulit." As long as the volcano doesn't erupt again. Cumulatively since January 6, the Department of Social Welfare and Development reports 30,522 families and 102,406 individuals displaced from this single volcano. 1,438 families and 5,440 individuals are currently sheltered across 14 evacuation centers. ₱71.6 million in humanitarian assistance has already been disbursed. ₱6.1 billion in standby funds is pre-positioned. The Coast Guard has 124 personnel from its Deployable Response Group on standby. The lava that has been pouring out of Mayon for four months is hypersthene andesite — thick, sticky, gas-rich, structurally unstable as it accumulates on the steep upper slopes. The 6-kilometer Permanent Danger Zone was established after February 2, 1993, when a pyroclastic flow on this same volcano traveled six kilometers down the Bonga Gully and killed seventy-seven people, mostly farmers tending crops on the lower slopes. The radius was set at the maximum reach of the flow that had just killed them. That line has stood unchanged for thirty-three years. On May 4, 2026, GMA News reporter Bea Pinlac confirmed on-air that PHIVOLCS authorities are now studying the expansion of that line to 7 kilometers. The studies are ongoing. The expansion has not been formally announced.

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This video uses publicly available content (PHIVOLCS official bulletins and monitoring data, DOST-Philippine Institute of Volcanology and Seismology interviews, Office of Civil Defense Region V Bicol situation reports, GMA News / Manila Bulletin / Philstar / BusinessWorld / Philippine News Agency / Manila Times reporting, Civil Aviation Authority of the Philippines advisories, Department of Social Welfare and Development figures, Smithsonian Global Volcanism Program archives, NASA Earth Observatory satellite imagery) under the Fair Use doctrine for educational, journalistic, and commentary purposes. All rights belong to their respective owners. No copyright infringement is intended.

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