A strong and shallow earthquake registered by the USGS as M6.6 struck near Sinabang, Indonesia, at 04:56 UTC on November 27, 2025. The agency is reporting a depth of 25.4 km (15.8 miles). EMSC is reporting the same magnitude and depth. According to the Indian Ocean Tsunami Warning and Mitigation System (IOTWMS), there is a potential tsunami threat to countries bordering the Indian Ocean.
A powerful hailstorm hit Erechim, Rio Grande do Sul, Brazil, on November 23, 2025, producing hailstones up to 10 cm (3.9 inches) in diameter and injuring over 150 people. Authorities declared a state of emergency after damage extended across hundreds of homes and dozens of schools.
Heavy lake-effect snow is forecast across the eastern Great Lakes region from early Thursday, November 27, through Saturday, November 29, 2025. The National Weather Service (NWS) has issued Lake Effect Snow Warnings for areas in Ohio, Pennsylvania, and New York, with totals reaching up to 50 cm (20 inches) in the most persistent snow bands.
A second winter storm is forecast to follow the Thanksgiving winter storm, bringing heavy snow across the Upper Midwest starting Friday, November 28, 2025. Snowfall totals are forecast to reach more than 152 mm (6 inches) through Sunday, November 30, as the storm moves across the region.
A powerful explosive eruption took place at Bezymianny volcano in Kamchatka, Russia, on November 26, 2025, with ash reaching 11.4 km (37 400 feet) a.s.l., as of 04:00 UTC. The Aviation Color Code was raised to Red due to ongoing explosions that could affect regional and international flights.
Episode 37 of the ongoing Kīlauea eruption began at 14:30 HST on November 25, 2025 (00:30 UTC, November 26), producing sustained lava fountains about 120 m (400 feet) high from the north vent inside Halemaʻumaʻu crater. The eruption remains confined within Hawaiʻi Volcanoes National Park, with no impacts beyond the summit area. Seismic tremor intensified at the onset, and sulfur dioxide (SO2) emissions rose to around 50 000 tonnes per day, generating volcanic gas plumes and vog drifting southwest under light northeast winds.
Hundreds of crashes were reported across Minnesota on November 25 2025, including more than 22 injury crashes. A strong winter storm brought heavy snow and blowing winds, prompting closures along key routes, including the I-94 and I-29 in Minnesota and North Dakota.
A M4.3 volcano-tectonic earthquake struck beneath the La Cumbre volcano on Fernandina Island in the Galápagos archipelago, Ecuador on November 17, 2025, followed by an intense earthquake swarm.
Two weak atmospheric rivers (ARs) are forecast to make landfall over Washington and Oregon between November 25 and 27, 2025, bringing 50–100 mm (2–4 inches) of rain to coastal and mountain areas.
Ash and sulfur dioxide released by Ethiopia’s Hayli Gubbi volcano, erupting for the first time in at least 12 000 years, disrupted regional air travel between November 24 and 25, 2025. The eruption produced a high-altitude plume reaching about 14 km (46 000 feet) above sea level, spreading eastward across the Arabian Peninsula and India, where aviation authorities issued advisories, rerouted long-haul flights, and temporarily suspended operations on affected routes.
