USGS Volcanoes🌋
@USGSVolcanoes
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Delivering official updates and info for U.S. volcanoes. https://t.co/eugs1G0ISb email: [email protected]
Joined August 2016
FWIW: official USGS volcano information will always come from accounts that have the handles @USGSVolcanoes, @alaska_avo, & @USGS and are linked from our web pages. Visit https://t.co/T7B6iv6eT0 for info.
usgs.gov
Find us on Facebook, Twitter, and Instagram @USGSVolcanoes. Scientists from all volcano observatories post and answer questions on the platform, so this is a great way for you to communicate with us!...
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Kilauea Message 2025-10-18 04:07:16 HST. Episode 35 ended at 3:32 am HST when the north vent died, the south vent stopped erupting 3 minutes earlier. The episode 35 fountains lasted for 7.5 hours and produced about 13 million cubic yards (10 million cubic meters) of lava.
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New today: Micah Rasmussen on the early vote. Shlomo Schorr on the Orthodox bloc that could swing the election. The article political insiders nationwide are reading to gauge the New Jersey governor’s race. Link in bio.
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Kilauea Message 2025-10-17 22:11:14 HST. Record high fountains for this eruption, nearly 1500 feet high. https://t.co/OMwOHsT9Q3
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Kilauea Message 2025-10-17 21:31:41 HST. South vent has topped 1300 feet (400 meters) and north vent is about 1100 feet (330 meters), a record for two fountains during this eruption!
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Kilauea Message 2025-10-17 21:19:36 HST. Both the north and the south vent are over 1000 feet (300 meters) with the south fountain about 1150 feet (350 meters) high.
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Kilauea Message 2025-10-17 21:10:21 HST. Both the north and south vent fountains are now 600-700 feet (200-230 meters) high.
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Kilauea Message 2025-10-17 21:04:48 HST. Fountains from the south vent began at about 8:50 pm HST and have grown rapidly to over 150 feet (50 meters) in the last 15 minutes. Both the north and south vents are feeding large flows on the the floor of Halemaʻumaʻu crater.
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Kilauea Message 2025-10-17 21:01:23 HST. Episode 35 continues from the north vent with fountains about 500 feet (150 meters) high. The north vent fountain is currently angled at about 60 degrees to the north east, similar to episode 34. Minor fountaining from the south vent.
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Kilauea Message 2025-10-17 20:25:30 HST. Episode 35 fountains began from the north vent at about 8:05 pm HST and fountains current are over 300 feet (100 meters) high. Fountains are expected to continue to grow and probably begin from the south vent as well.
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Kilauea Message 2025-10-17 20:06:57 HST. Continuous precursory overflows began from the north vent at 7:28 p.m. HST October 17. Fountains are 30-50 feet (10-15 meters) high. Tremor is increasing and tilt is dropping, episode 35 fountains should start soon.
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Kilauea Message 2025-10-17 17:50:26 HST. Precursory overflows (31 total) of degassed lava continue from the south vent along with spattering in the north vent. The onset of episode 35 fountaining could happen anytime between now and Tuesday with Saturday or Sunday most likely.
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Hawaiian Volcano Observatory Message 2025-10-16 21:10:22 HST. 15 lava overflow-drainback events occurred at south vent between 7:35 AM and 9:00 PM, Oct 16. More are expected as we approach episode 35 fountaining. Vigrous intermittent spatter continues at north vent.
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Hawaiian Volcano Observatory Message 2025-10-16 10:22:12 HST. Small lava overflows from the south vent occurred this morning at 7:35 AM, 8:50 AM, 9:29 AM. Each lasted ~12 minutes and ended with spattering and drainback. These will likely become more frequent as we approach...
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Kilauea Message 2025-10-15 21:20:58 HST. Nearly continuous strong glow is coming from both the north and south vents. Intermittent spattering in the north vent began just after dark. Seismic tremor indicates sustained tremor changed to irregular gas...
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Kilauea Message 2025-10-12 21:47:52 HST. Short spatter bursts were observed from the south vent at 9:09 and 9:32 pm HST and at 9:29 pm HST from the north vent. These indicate that magma is high in both vents and spattering events should increase in frequency over the coming...
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Due to the federal government shutdown, this account is not being actively updated. For more information, please visit:
doi.gov
Operations in the Absence of Appropriations
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Yellowstone Volc. Obs. monthly update (Sep. 30, 2025) Normal activity levels (85 located quakes, max-M3.3). YVO scientists took a helicopter trip to a remote GPS site that was malfunctioning and brought it back to life! More in this month's video update:
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All volcanoes in California were at normal background levels of activity last week. https://t.co/r5z5SQkH5l A cryogenic magnetometer may sound like something out of a scifi show, but it's actually an important tool for figuring out the eruption histories at volcanoes. Read all
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Kilauea Message 2025-09-30 06:48:25 HST. There have been over 100 precusory overflows since the intial one at 9:43 PM HST on September 28. Most happened yesterday, September 29, with nearly every gas piston resulting in an overflow. Since midnight there have only been 9...
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Kilauea Message 2025-09-29 08:06:33 HST. There have been 8 gas piston overflows from the north vent overnight, with the frequency increasing this morning. Events last 5-10 minutes and are about 30 minutes apart. Episode 34 fountains are likely to start in less than 48 hours.
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How long does it take water that falls as rain to erupt from Yellowstone's geysers? To find out, today's #Yellowstone #CalderaChronicles goes with the flow...of water molecules! https://t.co/YWExtf9lu3
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