Loihi , the youngest volcano of the Hawaiian Volcanic Chain , is still about 1 ,000 meters beneath the ocean 's surface . East Maui Volcano , commonly known as Haleakala , on the island of Maui , is the only other Hawaiian volcano to have erupted since the late 1700 's . The primary volcanoes on each of the islands are known as a shield volcanoes , which are gently sloping mountains produced from a large number of generally very fluid lava flows . Hawaiian volcanoes primarily erupt...











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