Significant explosion at Shishaldin volcano, Alaska
A significant explosion occurred at Shishaldin Volcano in Alaska, U.S. at 09:09 UTC on July 14, 2023. The Aviation Color Code remains at Orange.
Increased activity observed at Shishaldin volcano, Alaska
Volcanologists at the Alaska Volcano Observatory (AVO) are reporting increased activity at Shishaldin volcano. As a result, the Aviation Color Code was raised to Orange.
Increased seismicity, ice-rock avalanche at Iliamna, Alaska
An increase in seismicity has been observed at Iliamna volcano beginning at 20:00 UTC on June 5, 2023. As a result, the Alaska Volcano Observatory (AVO) raised the Aviation Color Code and Volcano Alert level for Iliamna to Yellow and Advisory.
Thick lava flow within the summit crater of Great Sitkin volcano, Alaska
Slow eruption of lava continues at Great Sitkin volcano, Alaska, producing a thick lava flow within the summit crater.
Ice jams cause catastrophic flooding in Alaskan riverfront towns
Alaska’s Governor Mike Dunleavy declared a state of disaster on May 14, 2023, in the wake of extensive flooding caused by ice jams and rapid snowmelt along the Kuskokwim and Yukon rivers.
Ash produced by major eruption at Sheveluch grounds flights in Alaska
Ash clouds produced by the major eruption of Russia’s Sheveluch volcano led to the cancellation of scores of flights in Alaska. The ash clouds drifted across the International Date Line into Alaska airspace, causing safety concerns for airlines over the next couple of days. As a precautionary measure, Alaska Airlines canceled 45 flights to and from Alaska and within the state. Other airlines also had to cancel or delay their flights.
AVO raises alert level for Tanaga and Takawangha volcanoes amid increased seismic activity, Alaska
Active seismic activity beneath the Tanaga and Takawangha volcanoes on Tanaga Island, Alaska, approximately 8 kilometers (5 miles) apart, has increased the potential for eruption, according to official reports from the Alaska Volcano Observatory (AVO).
Increased seismicity beneath Tanaga volcano, Alaska
In response to increased seismicity beneath the Tanaga volcano detected on March 6 and 7, 2023, the Alaska Volcano Observatory (AVO) raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory.
Increased seismic activity under Trident volcano, Alaska
On February 22, 2023, the Alaska Volcano Observatory (AVO) raised the alert level of Trident Volcano to ADVISORY and the Aviation Color Code to YELLOW due to an increase in seismic activity beneath the volcano. The last eruption at this volcano was in 1974 (VEI 3).
Increased seismic activity under Aniakchak volcano, alerts raised, Alaska
The Alaska Volcano Observatory (AVO) has raised the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY for Aniakchak volcano on February 23, 2023, following an increase in seismic activity. The last eruption at this volcano took place in 1931 (VEI 4).
