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Hawaiian Volcano Observatory Message 2025-12-06 21:18:23 HST
Kilauea summit inflation has resumed after 33 microradians of deflation. Ep. 38 erupted 16 million cubic yards (12 million m^3) of lava. Combined average eruption rate was over 250 cubic yards (190 m^3) per second.
Kilauea Message 2025-12-06 21:09:28 HST
https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-07T00:34:25+00:00
Hawaiian Volcano Observatory Message 2025-12-06 20:57:18 HST
Episode 38 of the ongoing Halema'uma'u eruption ended at 8:52 PM HST on Saturday, December 6, after just over 12 hours of sustained lava fountaining.
Kilauea Message 2025-12-06 19:59:33 HST
South vent fountains are about 400 feet (120 meters) high. There has been about 31.5 microradians of deflation during episode 38, the largest recorded during this eruption. Approximately 13 million cubic yards of lava has been erupted.
Kilauea Message 2025-12-06 15:11:39 HST
Episode 38 has produced about 13,000,000 cubic yards or 10,000,000 cubic meters of lava over the past 6 hours. The north vent is not erupting, and south vent fountains are below 575 feet. There has been 24.5 microradians of deflation.
Kilauea Message 2025-12-06 12:28:34 HST
Just a note that if you are one of the dedicated observers that watch our instrument data, the "wiggles" in the tilt data were caused by the arrival of the teleseismic waves from the Magnitude 7 Hubbard Glacier earthquake in Alaska.
Kilauea Message 2025-12-06 12:12:38 HST
The high effusion rate of this episode is producing a very dramatic plume extending over 20,000 feet above sea level. There is misinformation being circulated in public that ground water is driving the fountains, but this is not true.
Kilauea Message 2025-12-06 12:00:05 HST
Fountains from the south vent are over 1000 feet high and inclined to the south. The summit has deflated over 16 microradians in 3 hours indicating that the effusion rate for this episode is very high.
Kilauea Message 2025-12-06 10:05:08 HST
The south vent fountain is now over 1000 feet (300 meters) high and inclined to the south. Hot pumice from this fountain destroyed the V3 streaming camera site a few minutes ago. Not a safe place for humans to watch. Thanks to you V3!
Kilauea Message 2025-12-06 09:41:24 HST
Kllauea is producing rare triple fountains this morning. Two are from the double vent in the north cone and one from the south vent. All of the fountains are between 400 and 500 feet (125 and 150 meters) high. Another first!
Kilauea Message 2025-12-06 08:59:43 HST
Episode 38 fountains began from the north vent at about 8:45 am HST and have rapidly progressed from 50-100 feet high to over 200 feet high by 9:00 am. Smaller fountains began from the south vent at 8:49 am HST and are over 100 feet high.
Kilauea Message 2025-12-06 08:27:18 HST
Rapidly increasing tremor and decreasing tilt indicate episode 38 is about to begin. Continuous precursory overflows have been feed a narrow lave flow into the center of Halema'uma'u since 3:37 am HST.
