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April 1 and 2, 2025 — Thermal maps of episode 16 summit activity at Kīlauea

April 5, 2025
Media
Color maps showing crater floor temperature
Sources/Usage: Public Domain. View Media Details
This set of thermal maps shows activity near the beginning and just after the end of episode 16 lava fountaining at the summit of Kīlauea. On April 1, lava fountaining was reaching over 200 meters (660 feet) and was beginning to produce a lava flow covering the western portion of the crater floor. At noon on April 2, the lava fountains ended, and the helicopter overflight occurred just an hour later, showing the still-active lava flows across the crater floor. These lava flows included ponded lava and channelized lava coming directly from the vent, as well as secondary ooze-outs that emerge through the solidified crater floor in the eastern portion of the crater.
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