Global Volcanic Activity Recorded on October 6, 2026
Volcanic activity spans multiple continents as observatories and Darwin and Washington Volcanic Ash Advisory Centers track ongoing eruptions, ash plumes, and effusive events.
Lava Overflows from Stromboli Northern Crater
In Italy’s Eolian Islands, Stromboli experienced a short-lived lava overflow from its northern crater on October 5, 2026. The INGV Catania volcano observatory reported that a new lava flow descended the upper Sciara del Fuoco area beginning at 15:05 local time. Normal strombolian activity continued from both crater areas simultaneously, indicating that the magma column rose high enough to overflow the vent. By the morning of October 6, the effusion had largely stopped.
Ash Plumes Across Indonesia and Papua New Guinea
Numerous volcanoes across Southeast Asia and Oceania are actively producing significant ash plumes, prompting advisories from the Darwin Volcanic Ash Advisory Center on October 6, 2026:
- Manam (Papua New Guinea): Explosive activity continues, with an ash plume reaching an estimated 7,000 feet (2,100 meters), or flight level 070, on October 5.
- Karangetang (Indonesia): Explosive activity continues, and an ash plume rose to an estimated 8,000 feet (2,400 meters), or flight level 080.
- Ibu (Indonesia): Explosive activity generated a 7,000-foot ash plume, or flight level 070, moving northeast at 10 knots.
- Lewotolo (Indonesia): Explosive activity continues, and the volcano produces an ash plume reaching 7,000 feet, or flight level 070.
- Krakatau (Indonesia): Explosive activity continues, and the volcano ejected an ash plume estimated at 5,000 feet (1,500 meters), or flight level 050, into the Sunda Strait.
- Semeru (Indonesia): Explosive activity continues and recorded the highest ash plume in the region on October 6, reaching an estimated 15,000 feet (4,600 meters), or flight level 150, and moving north at 5 knots.
- Dukono (Indonesia): Explosive activity continues and maintained an ash plume at an estimated 7,000 feet, or flight level 070.
Eruptions in the Americas and Pacific Region
Activity remains steady across the Americas and the Pacific. In Vanuatu, the effusive eruption at Aoba continues, with new lava traveling east within the Marum crater and approaching its edge. In Guatemala, Fuego displayed ongoing volcanic ash emissions observed by webcam on October 6, though weather clouds prevented satellite detection. Puracé in Colombia and Sangay in Ecuador both registered explosive activity producing ash plumes rising to an estimated 21,000 feet (6,400 meters), or flight level 210. Meanwhile, Reventador in Ecuador reported occasional ash emissions with model forecasts predicting southwest and west movement, and Sabancaya in Peru showed only weak steam emissions with no identifiable ash on satellite or webcam data.
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