Hawaii Island DLNR Warns of Imminent Lava Delta Collapse Hazards

The Hawaii Department of Land and Natural Resources (DLNR) is warning residents and visitors to exercise extreme caution near newly formed lava deltas on Hawaii Island's eastern coast, particularly in the communities of Kapoho, Pohoiki, Malama, and Kalapana. These lava deltas, created from the 2018 Kīlauea volcano flows, are inherently unstable and deceptive, as thin layers of molten rock may appear solid but conceal deep fissures and cracks. A large crack recently discovered in a lava delta at Kapoho highlights the potential for imminent collapse, which poses significant safety risks. The U.S. Geological Survey (USGS) notes that collapsing lava deltas can trigger explosive activity, hurling rocks and debris hundreds of yards inland or seaward unpredictably. DLNR Chair Dawn Chang emphasized that these areas remain active hazard zones years after the eruption and are unsafe to traverse. Due to the unpredictability and lack of detailed documentation on lava delta formation and destruction, officials strongly advise the public to avoid walking on these lands to prevent injury from sudden collapses or explosions.