Episode 31 of the ongoing Kilauea eruption ended abruptly at 2:52 a.m. today after more than 12 hours of intense lava fountaining inside Halemaumau crater, the Hawaiian Volcano Observatory said.

Inclined lava fountains Aug. 22, 2025, during Episode 31 of the ongoing episodic summit eruption at Kīlauea volcano on the Big Island. Fountains extended 1,000 feet laterally from the north vent within Halemaʻumaʻu Crater, ejecting molten rock eastward toward the center of the crater. (Photo Courtesy: U.S. Geoloigcal Survey/M. Zoeller)

Even once it cools down, the unstable new land created by lava flowing into the sea can be dangerous, officials say.

Hawaii's Kilauea volcano resumed erupting Friday by shooting an arc of lava 100 feet into the air and across a section of its summit crater floor.