A strong earthquake registered by the USGS as M6.2 hit Rat Islands, Aleutian Islands, Alaska at 18:40 UTC on December 14, 2022. The agency is reporting a depth of 83.7 km (52 miles). EMSC is reporting M6.1 at a depth of 80 km (49.7 miles).
Earthquake swarm under Takawangha volcano, Alaska continues since mid-November. The Aviation Color Code remains at Yellow and the Volcano Alert Level at Advisory. The last known eruption at this volcano took place in 1550 CE (VEI unknown).
Remnants of Typhoon “Merbok” slammed into western Alaska, U.S. on September 16 and 17, 2022, bringing significant storm surge and high winds to the region. This was the worst September storm to hit Alaska since the 1970s.
Remnants of Typhoon “Merbok” will bring potentially historical coastal flooding, high surf, coastal erosion, high winds, high seas and heavy rain to western Alaska and the Bering Sea through the weekend, the National Weather Service (NWS) warns.
The remnants of Typhoon “Merbok” are working through the Bering Sea, bringing the potential for historic coastal flooding and storm surges as the system works through the region this weekend.
A seismic swarm started under Trident stratovolcano, Alaska on August 24, 2022, likely driven by the movement of magma or magmatic fluids. The swarm is still in progress but now at a decreased rate. The last eruption of this volcano took place in 1974 (VEI 3).
Pavlof Volcano continues to erupt from the active vent on its east flank, just below the summit. The Aviation Color Code remains at Orange. Previous eruptions of Pavlof indicate that the level of unrest can change quickly and the progression to more significant eruptive activity can occur with little or no warning.
A strong earthquake registered by the USGS as M6.3 hit Rat Islands, Aleutian Islands, Alaska at 23:38 UTC on June 4, 2022. The agency is reporting a depth of 105 km (65 miles). EMSC is reporting M6.4 at a depth of 100 km (62 miles).
Elevated surface temperatures and sulfur dioxide emissions have been detected at Cleveland volcano, Alaska, U.S. over the past couple of days, representing a departure from background activity.
A swarm of earthquakes has occurred in the vicinity of Davidof volcano, Alaska over the past two days. A similar earthquake swarm occurred in December 2021. There is no known eruption of this volcano over the past 10 000 years. The largest earthquake in the…