Mauna Loa Volcano Erupts in Hawaii

news image
Special Stories
30 Nov 2022 10:00 AM
The Mauna Loa volcano erupted late Sunday night on the Big Island of Hawaii, prompting ashfall advisories and the United States Geological Survey (USGS) to raise the alert levels. This is the first eruption of the world's largest active volcano since 1984. https://twitter.com/WeatherNation/status/1598029096663015426 The USGS has raised the Volcanic Alert Level to "Warning" meaning a hazardous eruption is ongoing or imminent. Ashfall is likely downwind of the volcano and in addition to the Alert Level there is also an aviation alert of RED, meaning there is significant emission of volcanic ash into the atmosphere. There may be impacts to aviation as a result.
According to USGS, "Eruption has moved to Mauna Loa’s Northeast Rift Zone. Local hazards include lava flows, ash and tephra fall, and heavy vog." Vog is volcanic smog. 
For perspective, this is occurring on Hawaii's largest island, named Hawaii and also known as "The Big Island". https://twitter.com/WeatherNation/status/1597236586793816064 For more on this and your top weather headlines, join WeatherNation always streaming 24/7.
All Weather News
More
Severe Weather Chances Continue Saturday Through Tuesday

Severe Weather Chances Continue Saturday Through Tuesday

Several rounds of severe storms are expected

25 Apr 2026 12:00 PM
Multiple Tornadoes Hit the Plains & Midwest Thursday

Multiple Tornadoes Hit the Plains & Midwest Thursday

Top Image: Brett AdairSeveral strong tornadoe

25 Apr 2026 9:20 AM
West Staying Active for the Weekend

West Staying Active for the Weekend

CALIFORNIA - After the latest system to impac

25 Apr 2026 9:00 AM
Tonight's Severe Risk From the Ark-La-Tex to the Lower Mississippi Valley

Tonight's Severe Risk From the Ark-La-Tex to the Lower Mississippi Valley

After a devastating day of tornadoes in Oklah

25 Apr 2026 2:20 AM
Record Snow, Record Rain, Rising Rivers

Record Snow, Record Rain, Rising Rivers

Flooding continues to be a serious threat acr

25 Apr 2026 2:00 AM
Severe Storm Threat Reloads Across Plains with Hail, Wind, and Tornado Risk

Severe Storm Threat Reloads Across Plains with Hail, Wind, and Tornado Risk

The Storm Prediction Center has issued an&nbs

24 Apr 2026 2:30 AM
Extreme Drought Leads To Fire Concerns Across The Nation

Extreme Drought Leads To Fire Concerns Across The Nation

SOUTHEASTOver 97% of the Southeast is in mode

24 Apr 2026 2:20 AM