The Philippine Institute of Volcanology and Seismology (Phivolcs) reported that the ongoing eruption of Mayon Volcano has caused volcanic ash to fall on parts of Albay, including Camalig, Brgy. Mabinit in Legazpi City, and barangays Budiao and Salvacion in the municipality of Daraga. Ashfall is most likely to occur in areas south of Mayon Volcano due to current wind patterns. Phivolcs warned that increased activity was occurring at Mayon Volcano due to the frequency of pyroclastic density currents (PDCs) and rockfall occurrences. Between 5 a.m. and 5 a.m., 38 PDCs, 511 rockfall events, and three volcanic earthquakes were recorded by the Mayon Volcano Network. The PDCs were generated by partial collapses from the summit lava dome and the advancing front and margins of lava flows. Lava flows have progressed by about 2.8 kilometers and 1.3 kilometers along the Mi-isi and Bonga gullies, while collapsed debris has advanced by four kilometers along the Basud Gully. The volcano continues to emit "moderate" amounts of sulfur dioxide, producing an 800-meter-high steam plume that drifted southwest and south-southwest. Alert Level 3 remains in effect, indicating an increased tendency towards a hazardous eruption. Communities near the volcano are advised to maintain increased vigilance against lahars and sediment-laden stream flows along channels draining the volcano edifice.
0 comments:
Post a Comment