May 25, 2025: Firehose Fountaining Sends Lava 300m into the Air at Kilauea Volcano, Hawaii (Cam A)

USGS Report (May 25, 2025): Episode 23 of the ongoing Halemaʻumaʻu eruption began at 4:15 p.m. HST on May 25 with the onset of sustained lava fountains. Lava flows are covering the floor of Halema'uma'u crater. Activity began in the north vent, which escalated to high fountains by 4:50 p.m. The south vent followed with smaller fountains by 5:15 p.m. As of 5:20 p.m., lava fountains from the south vent are about 230 feet (70 meters) in height while lava fountains from the north vent are exceeding 1,000 feet (300 meters) in height.

Inflationary tilt at UWD reached just over 12 microradians since the end of the last episode and changed quickly to deflation when sustained fountaining began. Seismic tremor began increasing at 4:36 p.m. at the same time that fountaining increased in height and volume.

Sulfur dioxide (SO2) emission rates are estimated to be approximately 50,000 t/d during fountaining events.

Most episodes of Halemaʻumaʻu lava fountaining since December 23, 2024, have continued for around a day or less and have been separated by pauses in eruptive activity lasting generally at least several days.


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Sources

A special thanks to all the hardworking scientists, government officials, companies and private citizens for the work that they do which makes this live stream possible:

Windy.com - so2 and wind data and maps
Google Earth - maps
USGS - cameras, earthquake data, and activity reports
Smithsonian Institute - Volcanic activity
RaspberryShake.com - earthquake activity
VolcanoDiscovery.com - Research


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Sound is not live, it is the sound of wind to simulate location conditions when the volcano is in between eruptions.

Main Source: USGS