Halemaʻumaʻu eruption · episode 24 of 55
Kīlauea episode 24
Episode 24 of Kīlauea's Halemaʻumaʻu eruption began at 8:55 p.m. HST on June 4, 2025 and ended at 4:28 a.m. HST on June 5, 2025. USGS gives the duration as 7.5 hours. HVO's Uēkahuna tiltmeter (UWD) recorded about 13 microradians of deflation during the episode. HVO notes: North and south vents active, north vent dominant.
Episode 24 at a glance
- Start (HST)
- June 4, 2025, 8:55 p.m.USGS timeline
- End (HST)
- June 5, 2025, 4:28 a.m.USGS timeline
- Duration
- 7.5 hoursUSGS timeline
- UWD tilt (deflation)
- about 13 microradiansHVO notice
- Max fountain height
- about 364 mUSGS timeline
- Lava erupted
- about 5.0 million m³USGS timeline
- Pause that followed
- 6 daysUSGS timeline
End: the USGS timeline gives “June 5, 2025 - 4:28 a.m.”, but an HVO notice at the time said: “Summit Observations: Episode 24 ended at approximately 4:28 a.m. on June 4.”
In HVO's words
The sentences these figures come from, quoted from USGS Hawaiian Volcano Observatory notices.
“Episode 24 was accompanied by about 13 microradians of deflationary tilt at a tiltmeter near Uēkahuna (UWD), similar to the amount seen during episode 23.”
HVO notices about episode 24
- Volcano Activity Notice · Jun 3, 2025, 12:36 p.m. HST
- Volcano Activity Notice · Jun 4, 2025, 10:51 p.m. HST
- Volcano Activity Notice · Jun 5, 2025, 5:37 a.m. HST
- Daily Update · Jun 5, 2025, 9:14 a.m. HST
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.