Attachments
I. Situation Overview
As of 10 July 2024, Alert Level 2 is maintained over Kanlaon Volcano. On 03 June 2024 at 8:00 PM, Alert Level 2 was raised from Alert Level 1 for Kanlaon Volcano after a moderately explosive eruption occurred at the summit crater at 6:51 PM. The event was recorded as an E-type earthquake that lasted six (6) minutes based on seismic data and produced a five (5) kilometer-high voluminous eruption plume. All ten (10) seismic stations, three (3) infrasound stations and two (2) visual monitors of the Kanlaon Volcano Network (KVN) recorded the explosion. Thermal camera monitors showed material collapsing from the incandescent plume forming Pyroclastic density currents (PDCs) that descended the southern slopes to a distance of two (2) to three (3) kilometers. Incandescent ballistic ejecta was also observed to rain down from the eruption plume. Rumbling sounds generated by the eruption were heard in La Castellana and La Carlota City, Negros Occidental and Canlaon City, Negros Oriental. Coarse ashfall reportedly fell upon barangays of these same areas and Bago City, Negros Occidental. Sulfurous odors were also experienced by residents in these areas as well as in Kanlaon Volcano Observatory-La Carlota City (KVO-LCC) and as far away as Murcia, Negros Occidental and Bacolod City.
On 08 June and 28 June 2024, observations of elevated volcanic sulfur dioxide gas flux were recorded over the Kanlaon Volcano.
The public is reminded that Alert Level 2 (increasing unrest) prevails over Kanlaon. This means that there is current unrest driven by shallow magmatic processes that could eventually lead to explosive eruptions or even precede hazardous magmatic eruption at the summit crater.
The public is also strongly advised to be vigilant and avoid entry into the four (4) kilometer-radius Permanent Danger Zone (PDZ) to minimize risks from volcanic hazards such as pyroclastic density currents, ballistic projectiles, rockfall and others. In case of ash fall events that may affect communities downwind of Kanlaon’s crater, people should cover their nose and mouth with a damp, clean cloth or dust mask.
Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as ash and ballistic fragments from sudden eruption can be hazardous to aircraft. Communities living beside river systems on the southern and western slopes, especially those that have already experienced lahars and muddy streamflows, are advised to take precautionary measures when heavy rainfall over the volcano has been forecast or has begun.
Source: DOST-PHIVOLCS Kanlaon Volcano Bulletin