The Alaska Volcano Observatory (AVO) has detected a notable increase in seismicity at Mount Gareloi beginning at 18:15 UTC on February 12, 2024, prompting the elevation of the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. Despite the uptick in seismic activity, there are no signs of an imminent eruption.
The Alaska Volcano Observatory reported a continuous slow eruption of lava in the summit crater of Great Sitkin Volcano as of 19:30 UTC on January 30, 2024. The Aviation Color Code remains at Orange and Alert Level at Watch.
A strong earthquake registered by the USGS as M6.3 hit Andreanof Islands, Alaska at 14:55 UTC on December 21, 2023. The agency is reporting a depth of 33 km (20.5 miles). EMSC is reporting M6.1 at a depth of 10 km (6.2 miles).
A small explosion was detected at Kanaga Volcano, Alaska at 07:31 UTC on December 19, 2023.
At approximately 21:00 local time on Monday, November 20, 2023, a destructive landslide, produced by intense rainfall, occurred roughly 18 km (11 miles) outside Wrangell, Alaska, on the Zimovia Highway. This event resulted in the deaths of at least three individuals, including a child, with three more reported missing. Active rescue efforts continue in the face of the landslide, which extended over approximately 152 meters (500 feet), destroying three homes and prompting urgent evacuations in the area.
Increased seismic activity has been recorded at Bogoslof volcano in Alaska since October 21, 2023, leading authorities to raise the alert level.
On October 22, 2023, Fairbanks, Alaska experienced an uncommon surge in snowfall, with the National Weather Service (NWS) Fairbanks office recording 8.9 cm (3.5 inches) of snow on that day alone. The snow depth in the region has reached 22.9 cm (9 inches), pushing the seasonal total to a remarkable 36.3 cm (14.3 inches), which is nearly double the usual amount for this time of year.
An ash cloud from Shishaldin Volcano reaching 12 km (40 000 feet) above sea level was observed in satellite data at 13:50 UTC on October 3, 2023.
An ash cloud from Alaska’s Shishaldin Volcano soared above 6 km (20 000 feet) above sea level at 13:24 UTC and up to 13.7 km (45 000 feet) by 14:18 UTC on September 25, 2023. The eruption, monitored through an array of sensors and satellite data, led authorities to elevate the Aviation Color Code to Red and the Volcano Alert Level to Warning.
Alaska’s Trident volcano has seen a significant increase in seismic activity and ground uplift over the past five months, leading to concerns about a potential volcanic eruption. The Alaska Volcano Observatory (AVO) has confirmed that this unrest is the result of magma intrusion beneath the volcano. The rising magma, which can trigger an eruption, has also caused increased seismic activity in the neighboring volcanoes of the Katmai volcanic cluster, including Katmai, Martin, Mageik, and the Novarupta vent.
