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Kilauea Message 2026-08-12 17:10:53 HST
North vent fountain peaking at 500 feet (150 meters) and producing moderate tephra and gas. Plume is over 18000 feet (5600 meters) ASL with a low level layer of gas and tephra moving southwest and a higher level moving more westerly.
Kilauea Message 2026-08-12 16:38:00 HST
North vent fountain is about 400 feet (120 meters) high. The plume cloud is approximately 16000 feet (5000 meters) high at this time.
Kilauea Message 2026-08-12 16:15:42 HST
North vent fountain is currently over 250 feet (75 meters) high and growing. Overflows continue from the collapse pit into the south vent and off to the south of the pit. The top of the plume cloud is currently 12000 ft (3700 meters) ASL.
Kilauea Message 2026-08-12 16:04:29 HST
Fountains are expected to reach peak heights in 1-2 hours. Lower level winds will carry tephra and gas to the southwest, while higher level winds will carry tephra and gas westward. Impact on communities should be limited.
Kilauea Message 2026-08-12 16:00:47 HST
Episode 53 began with 100 foot (30 meter) fountains at 3:45 pm. HST on August 12. A Volcano Activity Notice (VAN) with more information can be found here:
USGS Volcano Notice - DOI-USGS-HVO-2026-08-13T00:22:02+00:00
Kilauea Message 2026-08-12 15:26:44 HST
The north vent fountain has increased to about 50-80 feet (15-20 meters) and continues to feed a substantial flow extending over a half a mile (1 kilometer) onto the floor of Halemaʻumaʻu crater. The onset of episode 53 appears close.
Kilauea Message 2026-08-12 14:07:06 HST
The small overflow that began at about 1 pm HST gradually increased in size until, abruptly, at 1:45 pm HST the volume increased greatly. Inflation stopped at the same time and a double dome fountain feeding a broad overflow formed.
Kilauea Message 2026-08-12 11:43:26 HST
Precursory overflows have begun from the north vent. The first was at 11:20 am HST and lasted 2 minutes. The second began at 11:35 and lasted roughly 4 minutes. Summit inflation is continuing.
Kilauea Message 2026-08-12 10:46:57 HST
Rapid inflation resumed at 9:40 a.m. this morning after 3.5 hours of slow inflation. The UWD tiltmeter has recovered 14.1 of the 14.4 microradians lost during episode 52. Episode 53 is likely to start later today or tomorrow.
Kilauea Message 2026-08-12 10:43:43 HST
The Kīlauea update for today can be found here: https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2026-08-12T16:32:18+00:00
Kilauea Message 2026-08-11 23:21:53 HST
REPLACING EPISODE 52 with EPISODE 53 IN EARLIER POST. CORRECTED WORDING "Projections indicate if this rate is sustained, episode 53 could begin as early as tomorrow afternoon and no later than Thursday."
Kilauea Message 2026-08-11 23:02:22 HST
Currently, moderate glow is observed from both the north vent and the collapse above the south vent (formerly called the crack). The south vent is dark. The new collapse began glowing around 8:45 pm and increased just before 10 pm HST.
