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Kilauea Message 2025-12-24 02:22:56 HST
Episode 39 ended at 2:13 a.m. HST on December 24, 2025 when south vent abrupted stopped erupting. North vent stopped erupting earlier at 2:00 a.m. HST.
Kilauea Message 2025-12-23 22:27:31 HST
The south vent reached a maximum fountain height of about 1400 feet at 9:30 pm HST. The north vent reached about 900 feet
at the same time. Currently the south vent is at 1000 feet and the north vent at 600 feet.
Kilauea Message 2025-12-23 21:44:09 HST
The south fountain has reached a height of 1400 feet (420 meters) while the north fountain has dropped to about 700 feet (210 meters). The lower level plume is moving southwest, but the plume about 20,000 feet is moving southeast.
Kilauea Message 2025-12-23 21:14:56 HST
South fountains are now 1250 feet (380 meters) high, while north fountains are 920 feet (280 meters) high. Effusion rates remain high and lava flows have covered about 10-20% of the floor of Halemaʻumaʻu crater.
Kilauea Message 2025-12-23 21:00:35 HST
The south fountain is 1150 feet (350 meters) high while the north fountain remains at about 700 feet (200 meters) high. The effusion rate for the first 30 minutes of fountaining is 900 cubic yards per second (750 cubic meters per second).
Kilauea Message 2025-12-23 20:44:50 HST
Both fountains are currently about 700 feet (200 meters) high and feeding large flows onto the floor of Halemaʻumaʻu crater.
Kilauea Message 2025-12-23 20:27:25 HST
Happy Anniversary to the Halemaʻumaʻu eruption which began a year ago on December 23, 2024. This is the 39th episode of high fountaining in the past year. Both north and south vent fountains are currently about 100 feet (30 meters) high.
Kilauea Message 2025-12-23 20:22:25 HST
Tremor and deflationary tilt suggest that episode 39 fountaining began at about 8:10 pm HST. Both the north and the south vent currently have fountains 30-70 feet (10-20 meters).
Kilauea Message 2025-12-23 19:48:57 HST
Both the north vent and south vent quit erupting at 7:45 pm HST. The north vent resumed eruption within a minute and the south vent restarted at 7:47 pm HST. North vent fountains are about 30 feet high, south vent about 10 feet high.
Kilauea Message 2025-12-23 19:39:29 HST
South vent began overflowing again at 7:30 pm HST joining the activity from the north vent. South vent stopped at 7:37 and restarted at about 7:40 pm HST.
Kilauea Message 2025-12-23 19:33:18 HST
South vent stopped and north vent began overflowing at 7:29 pm HST. North vent fountains are about 10-15 feet (3-5 meters) tall and quite vigorous.
Kilauea Message 2025-12-23 19:21:40 HST
It is possible that the current overflows may continue and progress into episode 39 fountains in the next 24-48 hours due to the lack of gas piston drainback events over the past several days. Tremor remains constant at moderate levels.
