Multiple explosive eruptions at Sakurajima’s Minamidake crater in Kagoshima, Japan, on November 16, 2025, sent ash to about 4 400 m (14 400 feet) above sea level, prompting ashfall forecasts and flight cancellations at Kagoshima Airport.
A mud-volcano eruption occurred in Pingtung County, Taiwan, on November 12, 2025, producing five vents that expelled mud and flames up to 2 m (6.5 feet) high. Village authorities created diversion channels to prevent mud from entering nearby farmland.
Effusive eruption at Nyamuragira volcano, Democratic Republic of the Congo, continues at elevated levels. Sentinel-2 imagery from November 12, 2025, shows lava overflowing the northern rim of the caldera and extending about 6.5 km (4 miles) along the northwestern flank. On November 14, 2025, TROPOMI detected a high SO2 plume at approximately 15 km (49 200 feet) altitude, confirming intensified degassing linked to sustained magma supply.
A lava overflow began from Stromboli’s northern crater area on November 13, 2025, sending a confined lava flow down the upper Sciara del Fuoco.
A period of renewed eruptive activity occurred at Planchón-Peteroa volcanic complex on the Chile–Argentina border between late October and early November 2025. Volcanic Ash Advisory Center (VAAC) Buenos Aires issued multiple warnings for continuous ash emissions reaching altitudes of up to 4 600 m (15 000 feet). Local monitoring networks reported persistent degassing and minor explosions. The volcanic alert level remains at Yellow.
A short-lived tornado-like vortex formed above the lava fountains in Halemaʻumaʻu crater, Kīlauea volcano, Hawaiʻi, around noon on November 9, 2025, during Episode 36 of the ongoing summit eruption. The phenomenon, caused by intense heating and localized wind shear, was captured on video from within Hawaiʻi Volcanoes National Park.
A partial collapse occurred at Mount Merapi volcano, Central Java Province, Indonesia, on November 10, 2025, producing lava flows on its slopes. The event follows continuous volcanic activity observed in recent days, including a pyroclastic flow that traveled about 1 500 m (4 921 feet) southwest at 15:19 LT (08:19 UTC) on November 9, lasting 188.32 seconds. The volcano remains at Alert Level III (Siaga), and residents are advised to follow official safety recommendations.
A lava overflow started from Stromboli’s North Crater area at around 10:00 UTC (11:00 LT) on November 9, 2025, feeding a lava flow on the upper Sciara del Fuoco. The activity, observed by the National Institute of Geophysics and Volcanology (INGV) through surveillance cameras, was accompanied by modest but continuous spattering from at least two vents in the North Crater area.
Episode 36 of the ongoing Halemaʻumaʻu eruption at Kīlauea volcano, Hawaiʻi, ended at 16:16 LT on November 9 (02:16 UTC, November 10), 2025, after just under 5 hours of continuous fountaining. The event produced record-high lava effusion rates of around 500 m³/s (650 yd³/s) and built fountains up to 330 m (1 100 feet) high, covering 60–80% of the Halemaʻumaʻu crater floor.
Minor ash emissions were confirmed at Whakaari / White Island, New Zealand, following two short-lived eruptions on October 30, 2025. The Volcanic Alert Level remains at 3 and the Aviation Color Code at Orange, indicating minor eruptive activity with uncertain future development. An observation flight on November 3 confirmed an ash plume rising 400–500 m (1 300–1 600 feet) above sea level, drifting southeast for 5–8 km (3–5 miles).
