Lava overflow activity increased at Stromboli from 21:20 LT (19:20 UTC) on May 4, 2026, sending a flow from the North crater area down the Sciara del Fuoco to the coastline by about 03:00 LT (01:00 UTC) on May 5. INGV reported average volcanic tremor, a slight increase in explosion-related earthquakes, and no significant GNSS change.
Stromboli’s North Crater area is producing intense spattering on May 4, 2026, feeding a lava overflow onto the Sciara del Fuoco, INGV-OE reported at 11:21 UTC. The lava front was in the middle-upper section of the slope, while volcanic tremor was in the high range.
More than 300 families were evacuated in Albay province, Philippines, after ashfall from Mayon volcano affected 87 villages across three towns over the weekend following a lava collapse on May 2, 2026. Officials reported no deaths or injuries, but ash reduced road visibility, damaged vegetable farms, and killed livestock in Camalig.
Pyroclastic density currents generated by a lava collapse at Mayon volcano in Albay, Philippines, on May 2, 2026, reached an estimated runout distance of 4 km (2.5 miles) along Mi-isi Gully and produced ashfall affecting 52 barangays across Guinobatan, Camalig, and Ligao City. Ashfall reduced visibility to near zero in parts of Camalig, blanketed homes, roads, crops, and grazing land, and prompted face mask distribution and health advisories.
New activity/unrest was reported for 3 volcanoes from April 23 to 29, 2026. During the same period, ongoing activity was reported for 24 volcanoes.
More than 25 million m³ (883 million ft³) of magma has accumulated beneath Svartsengi, Iceland, since the last eruption in July 2025, the Icelandic Meteorological Office (IMO) reported on April 28, 2026. IMO said ground uplift continues at up to 2 cm (0.8 inches) per month, while magmatic dike propagation toward the Sundhnúkur crater row remains the most likely scenario and could lead to an eruption.
New activity/unrest was reported for 4 volcanoes from April 16 to 22, 2026. During the same period, ongoing activity was reported for 23 volcanoes.
Lava fountains rising to 300 m (1 000 feet) and an ash plume reaching 5 000 m (16 500 feet) marked the onset of episode 45 at Kīlauea on April 23, 2026, triggering an ashfall advisory for Kaʻū. Activity remained confined within Halemaʻumaʻu as fountain heights stabilized after an early peak.
Authorities raised the volcanic alert level to V1 in the Faial–Pico channel, Azores, Portugal, on April 9, 2026, following low-magnitude seismic activity that began on April 1. The earthquakes occurred along a NE–SW trend west of Madalena to north of Lagido, spanning depths from 20 km (12 miles) to near the surface. The last known eruption at this volcano took place in 1720, with a Volcanic Explosivity Index (VEI) of 2.
New activity/unrest was reported for 3 volcanoes from April 9 to 15, 2026. During the same period, ongoing activity was reported for 17 volcanoes.
