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MIL-OSI USA: Photo & Video Chronology — April 9, 2025 — More views of Kīlauea episode 17

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Source: US Geological Survey

Photo & Video Chronology — April 9, 2025 — More views of Kīlauea episode 17

Episode 17 of the ongoing Halemaʻumaʻu eruption ended at 9:45 a.m. HST on April 9 when low fountaining at the south vent stopped. Fountains from the south vent sustained heights of 50-200 feet (15-60 meters). Overall, episode 17 lasted 35.5 hours.

This video shows clips from a helicopter overflight and a field visit by USGS Hawaiian Volcano Observatory geologists to the crater rim to observe the lava fountaining in episode 17 of the ongoing summit eruption of Kīlauea. The lava fountaining was producing a towering outgassing plume above the summit, and was supplying lava into a swiftly flowing channel carried lava east across the Halema‘uma‘u crater floor. USGS video by M. Patrick and C. Gansecki.
This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. As of this posting on April 9, the eruption has had seventeen episodes, with the most recent concluding earlier this morning. However, most of the map data included here were collected during a Hawaiian Volcano Observatory helicopter overflight on April 2, immediately following episode 16; for this reason, the provided statistics only reflect the first sixteen episodes of the eruption. Additionally, the collected data were insufficient to calculate the total lava volume for the eruption at that time.

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