The Philippine Space Agency (PhilSA) has confirmed that ashfall from Mayon Volcano has affected 8,544 hectares, roughly half the area of Quezon City. This ashfall was triggered by a pyroclastic density current on May 2.
PhilSA's analysis indicates that these ash deposits pose serious health risks and hazards to aircraft and industrial machinery.
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) notes that the ashfall consists of tiny volcanic particles, generally less than 2 millimeters in diameter.
Impact on Local Communities
As of May 4, the ashfall has impacted 30,522 families, equating to 102,406 individuals across 87 barangays in the Bicol region. The Office of Civil Defense is closely monitoring the situation.
Ash fallout can significantly disrupt and damage buildings, transportation, agriculture, and more, even at minimal thicknesses.
U.S. Geological Survey
Authorities are urging residents to stay indoors and follow safety protocols to mitigate health risks associated with the ashfall.