© U.S. Geological SurveyLava skyrockets from within the Halemaʻumaʻu Crater at the summit of Kīlauea volcano on the Big Island on Sunday, June 29, 2025, about an hour and a half after Episode 27 of the ongoing episodic summit eruption began just after 9 a.m. This image is from the U.S. Geological Survey V3 livestream camera. watching the volcano’s summit.
Hawaiian Volcano Observatory reported at 8:20 p.m. in a Volcanic Activity Notice that waning lava geysers from the north vent in the southwest portion of the crater stopped completely at 7:54 p.m., several hours after reaching maximum heights up to about 1,116 feet.
Flames were visible at the south vent for a few minutes afterwad.
High fountains produced about 1.6 billion gallons of lava, covering 80% of the crater floor.
Since fountaining ended, volcanic gas emissions greatly decreased.
Lava flows from this episode within the southern part of Kaluapele, Kīlauea's summit caldera, could continue to exhibit slow movement or incandescence as they cool and solidify throughout the coming days.
The Uēkahuna tiltmeter recorded about 16.4 microradians of deflation during this episode, which was also coincident with a rapid change from deflation to inflation at the summit and decrease in seismic tremor intensity.
Most episodes of the ongoing episodic summit eruption have continued for about a day or less and were separated by pauses in activity lasting generally at least several days.
No changes have been detected in the volcano's East Rift Zone or Southwest Rift Zone.
HVO continues to closely monitor Kīlauea and will issue a new Volcanic Activity Notice at the start of the next eruptive episode.
If possible, HVO will also issue a Volcanic Activity Notice upon the onset of low-level precursory activity.
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