A strong and shallow earthquake registered by the USGS as M6.4 hit near the coast of Northern California at 10:34 UTC (02:34 LT) on December 20, 2022. The agency is reporting a depth of 16 km (9.9 miles). EMSC is reporting M6.3 at a depth of 40 km (24.8 miles).
A massive surge of extremely cold Arctic air will consume much of the Lower 48 this week with well below-normal temperatures stretching from the Northwest into the Eastern two-thirds of the U.S.
Honolulu Airlines flight 35 from Phoenix to Hawaii encountered severe turbulence roughly 30 minutes before landing in Honolulu on December 18, 2022, causing some passengers to fly out of their seats. While the plane (Airbus A330) landed safely, 36 people were injured during the event, of which 11 seriously.
The powerful and massive multi-day storm continues across the Northern U.S. and in Florida on Thursday, December 15, 2022. Heavy snow, gusty winds and blizzard conditions continue across the Upper Midwest, while frozen precipitation of ice and snow begins in the central Appalachians and interior portions of the Northeast.
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).
Severe thunderstorms spawned destructive tornadoes in the southern United States on December 13, 2022, leaving at least one person dead and several people missing. Severe storms with all hazards, including intense tornadoes, and heavy to excessive rain that could cause flash flooding are forecast to continue across the Deep and Middle South on December 14.
The eruption at Mauna Loa that started on November 28, 2022, ended on December 13. This was the first eruption at the world’s largest active volcano since 1984 (VEI 0).
A massive storm system will impact the Central and Southern U.S. over the next few days. Widespread heavy snow with blizzard conditions and a zone of wintry mix is possible from the north-central High Plains to the Upper Midwest. Meanwhile, in the warm sector of the storm, a severe weather event with all hazards is possible in the southern Plains and Lower Mississippi Valley to Florida.
A powerful storm system with heavy mountain snow and heavy lower-elevation rain is affecting the U.S. West, potentially bringing as much as 150 cm (5 feet) of snow accumulation to California. Flooding and debris flows will be possible on burn scars in southern California.
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).
