Hawaiian Volcano Observatory

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. View All Messages.

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 View All Messages.

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. View All Messages.

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. View All Messages.

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. View All Messages.

HVO monitors earthquakes and the active volcanoes in Hawaii, assesses their hazards, issues warnings, and advances scientific understanding to reduce the impacts of volcanic eruptions. Communicating the results of our work to the public, emergency managers, and the scientific community is an important aspect of the HVO mission.

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