MIL-OSI USA: Photo & Video Chronology — March 4, 2025 — Kīlauea summit eruption episode 12

Source: US Geological Survey

Episode 12 of the ongoing Halemaʻumaʻu eruption began a fountaining phase at 2 p.m. HST on March 4 after small and short-lived lava flows earlier in the day. 

Only weak vent activity was observed on the USGS Hawaiian Volcano Observatory monitoring helicopter overflight of Kīlauea summit at 8 a.m. HST on March 4, 2025. Scientists conducted sampling of lava that has slowly oozed out in the eastern portion of the crater in recent days as residue from earlier episodes. All samples are collected in coordination with and after receiving permission from Hawai‘i Volcanoes National Park. Analysis of the sample will provide information for ongoing eruption hazard assessment. Weak effusive activity continued throughout the day until around 2 p.m., when fountaining started with more vigor, producing a larger flow across the crater floor. 
A panoramic view of Kaluapele, the caldera at the summit of Kīlauea volcano, taken from the Volcano House Hotel overlook in Hawaiʻi Volcanoes National Park. The intermittently active vents on the west wall of the caldera are visibly degassing in the shadowed background of the image, while Mauna Loa is illuminated in the sunlight. This image was taken the morning of March 4, 2025. USGS photo by K. Mulliken. 

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