On May 29 , lava from a new northeastern flow overran Hawaii Route 132 , cutting the access between Kapoho and Pāhoa . The massive lava flow reached the Pacific Ocean at Kapoho Bay on June 4 . Lava entered the Kapoho Crater and evaporated Green Lake , the largest natural freshwater lake in Hawai'i . On the night of June 4 – 5 , the northeastern flow of lava speedily moved forward and destroyed the subdivision of Vacationland Hawaii . By June 5 , Kapoho Bay had been filled in with lava now forming a point where the bay had been . The volcanic activity was the most destructive in the United States since the 1980 eruption of Mount St. Helens
1980 eruption
1980 eruption of Mount St. Helens
2018 lower Puna eruption