Some geologists count seven volcanoes as building the island, which include the submarine volcanoes Māhukona and Lōʻihi as parts of the base of the island. Māhukona off the northwest corner of the island has already disappeared below the surface of the ocean. Approximately southeast of Hawaii lies the undersea volcano known as Lōʻihi. It is an erupting seamount that now reaches approximately below the surface of the ocean. 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.