This movie shows a sequence of 8 time-lapse photos—one photo per day from July 6 to July 13, 2017—of the lava
delta at Kīlauea Volcano's Kamokuna ocean entry. The sequence shows the front of the delta subsiding, and cracks running parallel to the coast widening, over the 8-day time period. The short movie is looped numerous times to help viewers detect these subtle changes in the delta, which are reminders that lava deltas are unstable features that can collapse without warning. Two lava delta collapses have already occurred at the Kamokuna ocean entry—on Dec. 31, 2016, and on May 3, 2017.