 Continued activity at current rates from Lōʻihi will likely cause it to break the surface of the ocean sometime between 10,000 and 100,000 years from now.The Great Crack is an , and fissure in the island, in the district of Kau.According to the United States Geological Survey (USGS), the Great Crack is the result of crustal dilation from magmatic intrusions into the southwest rift zone of Kilauea.