Bright fireball over Pennsylvania, U.S.
A bright fireball streaked through the night sky over Pennsylvania, U.S. at around 23:48 UTC on February 21, 2024. Hundreds of people reported the event despite significant cloud cover.
Atmospheric river event brings new round of heavy rain and snow to California
An atmospheric river event continues directing subtropical moisture over much of California on Monday, February 19, 2024. Heavy coastal and low elevation rain, thunderstorms, heavy mountain snow and high winds are all expected from this new atmospheric river event.
Mount Gareloi’s seismic surge linked to magmatic-hydrothermal changes, U.S.
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.
Strong winter storm over the Southern Plains to evolve into a Nor’easter on February 12
Forecasters at the National Weather Service (NWS) issued a warning on February 11, 2024, about a significant winter storm impacting the Southern Rockies and High Plains, moving northeast towards the Northern Mid-Atlantic, New York, and New England. Expected heavy snowfall, powerful winds, and potential coastal flooding are set to disrupt travel and cause power outages across affected regions.
M5.7 earthquake hits southeastern flank of Mauna Loa volcano, Hawaii
A strong earthquake registered by the USGS as M5.7 (downgraded from M6.3) hit the southeastern flank of Mauna Loa volcano in Hawaii at 20:33 UTC on February 9, 2024. The agency is reporting a depth of 36.8 km (22.8 miles).
California braces for another storm after historic atmospheric river claims 9 lives
California, still reeling from a historic atmospheric river that left nine people dead and hundreds of mudslides, faces a new threat from a fast-moving storm.
Powerful atmospheric river triggers state of emergency in Southern California, rare Level 4 of 4 risk of excessive rainfall
An intense atmospheric river event hit California on Sunday, February 4, 2024, prompting Gov. Gavin Newsom to declare a state of emergency in eight counties due to the potential for “life-threatening” flooding, mudslides, and widespread power outages. The National Weather Service warns of significant rainfall, powerful winds, and heavy snowfall continuing over the next few days.
San Francisco exceeds seasonal rain totals, another atmospheric river and extremely dangerous winds approaching California, U.S.
Severe storms swept through California on Thursday, February 1, 2024, causing widespread flooding, power outages, and fallen trees. The first of two storms, part of strong atmospheric river systems, hit the San Francisco Bay Area before moving south towards Los Angeles, delivering over 100 mm (4 inches) of rain in some areas. Officials warn of a “significant threat” from an even larger storm expected over the weekend, with the potential for excessive rain, heavy snow, and strong winds across the state through Tuesday, February 7.
Seismic activity and ground deformation surge at Kīlauea’s summit, Hawaii
Increased earthquake activity and signs of magma movement beneath Kīlauea’s summit, detected on January 31, 2024, have prompted the USGS Hawaiian Volcano Observatory to elevate the volcano’s alert level from ADVISORY/YELLOW to WATCH/ORANGE. With over 500 earthquakes recorded since midnight and ground deformation indicating pressurized magma chambers, the risk of an eruption remains high.
Slow lava eruption continues at Great Sitkin volcano, Alaska
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.
