The Philippine Space Agency (PhilSA) released satellite-based maps showing the extent of ashfall from Mayon Volcano following a pyroclastic density current on May 2, 2026, affecting at least 8,544 hectares. Using change detection from Sentinel-2 images, PhilSA identified ash deposits along the Mi-isi gully by comparing satellite data captured on May 4 with a pre-event … Continue reading Here’s how much land Mayon ashfall covered, per PhilSA