A lava lake at the summit of Kilauea volcano in Hawaii has now overflowed into the Halema‘uma‘u crater to cover two-thirds of its floor. A timelapse from the US Geological Survey shows 24 hours of activity between April 25-26.

The largest of the flows from the lake into the crater was between 6:15am and 10:30am on April 26, when the lava covered 90 acres, or two-thirds, of the crater floor. It’s the first significant overflow of the summit lava lake since 2015, the agency said.

Overflows have been taking place since April 21. Credit: US Geological Survey via Storyful