A severe storm triggered the first-ever Severe Thunderstorm Warning for Juneau, Alaska on Monday, June 16, 2025. The storm brought wind gusts up to 95 km/h (60 mph) and hail, damaging trees and infrastructure and forcing a docked cruise ship adrift into Gastineau Channel.
Volcanic unrest continues at Mount Spurr, Alaska, with elevated seismic activity, surface deformation, persistent gas emissions, and visible summit steaming. The current unrest indicates that new magma has intruded into the Earth’s crust beneath the volcano and that the probability of an eruption has increased. The last known eruption at this volcano took place in 1992 (VEI 4).
A strong and shallow earthquake registered by the USGS as M6.2 hit near Adak, Andreanof Islands, Aleutian Islands, Alaska at 14:53 UTC on March 21, 2025. The agency is reporting a depth of 26 km (16 miles). EMSC is reporting M6.2 at a depth of 30 km (18 miles).
The likelihood of an eruption at Mount Spurr has increased with gas emissions recorded on March 7 and 11, confirming ongoing volcanic unrest. The volcano is located about 120 km (75 miles) west of Anchorage (population 286 000), Alaska.
Mount Spurr in Alaska remains in a state of volcanic unrest, with AVO detecting numerous shallow earthquakes on February 13, 2025, likely caused by magma movement beneath the volcano. While an eruption is not expected in the near term, ongoing activity suggests one could occur in the future, most likely at Crater Peak, which erupted explosively in 1953 and 1992.
An atmospheric river is forecast to impact northern Alaska on Thursday, January 23, 2025, bringing in strong winds along with heavy snow through the weekend.
Hurricane-force winds with speeds reaching 208 km/h (129 mph) battered southcentral Alaska, on Tuesday, January 12, 2025, causing extensive damage to infrastructure, power outages affecting thousands of homes, and disruptions across the region.
An earthquake swarm has been occurring southwest of Adak Islands, Alaska, since December 8, 2024, beginning with M6.3 at a depth of 18 km (11 miles). The swarm includes multiple significant earthquakes, including two M6.3 events, an M6.1, and numerous aftershocks up to M5.8.
A strong earthquake registered by the USGS as M6.3 hit Andreanof Islands, Alaska at 19:57 UTC on December 8, 2024. The agency is reporting a depth of 18 km (11 miles). EMSC is reporting the same magnitude and depth.
Two fireballs were observed streaking across the sky over Fairbanks, Alaska, in the early hours of December 1, 2024, accompanied by a green aurora. The two fireball events occurred just two hours apart, creating a rare spectacle for early-morning skywatchers.
