Halemaʻumaʻu eruption · episode 50 of 55
Kīlauea episode 50
Episode 50 of Kīlauea's Halemaʻumaʻu eruption began at 10:10 a.m. HST on June 27, 2026 and ended at 5:10 p.m. HST the same day. USGS gives the duration as 7 hours. HVO's Uēkahuna tiltmeter (UWD) recorded about 15.3 microradians of deflation during the episode. HVO notes: Precursory lava flows from the north vent; north vent erupted lava fountain.
Episode 50 at a glance
- Start (HST)
- June 27, 2026, 10:10 a.m.USGS timeline
- End (HST)
- June 27, 2026, 5:10 p.m.USGS timeline
- Duration
- 7 hoursUSGS timeline
- UWD tilt (deflation)
- about 15.3 microradiansHVO notice
- Max fountain height
- about 300 mUSGS timeline
- Lava erupted
- about 4.9 million m³USGS timeline
- Pause that followed
- 18 daysUSGS timeline
In HVO's words
The sentences these figures come from, quoted from USGS Hawaiian Volcano Observatory notices.
“The Uēkahuna tiltmeter (UWD) recorded about 15.3 microradians of deflationary tilt during episode 50.”
HVO notices about episode 50
- Volcano Activity Notice · Jun 26, 2026, 9:14 a.m. HSTPrecursory low-level eruptive activity before episode 50 of the ongoing Halemaʻumaʻu eruption increased around 8:50 a.m. HST on June 26.
- Volcano Activity Notice · Jun 27, 2026, 10:36 a.m. HSTEpisode 50 of the ongoing Halemaʻumaʻu eruption began at approximately 10:10 a.m. HST on June 27.
- Volcano Activity Notice · Jun 27, 2026, 1:55 p.m. HSTEpisode 50 of the ongoing Halemaʻumaʻu eruption continues at 1:30 p.m. HST on June 27. Light fall of Pele's hair reported from Pāhala in Kaʻu.
- Volcano Activity Notice · Jun 27, 2026, 5:27 p.m. HSTEpisode 50 of the ongoing Halemaʻumaʻu eruption ended abruptly at 5:10 p.m. HST on June 27.
- Status Report · Jun 27, 2026, 6:59 p.m. HSTSummary: Episode 50 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea ended abruptly at 5:10 p.m. HST on June 27. The eruption is currently paused.
Daily updates: USGS Kīlauea volcano updates. Full table: USGS Timeline of Eruptive Episodes.
Times are Hawaiʻi-Aleutian Standard Time (HST). Start and pause times, durations, fountain heights and lava volumes come from the USGS Hawaiian Volcano Observatory's Timeline of Eruptive Episodes; tilt figures and episodes not yet in that table are quoted from HVO notices. USGS describes these as unreviewed, preliminary estimates that are subject to revision. Durations for episodes 17 and earlier may include precursory activity, and HVO rounds durations to the nearest hour, half-hour or day. A blank cell means HVO hasn't published that figure in a form we could read; we don't estimate it.
Credit: U.S. Geological Survey. This archive is generated automatically and is not an official USGS product.