Banua Wuhu is a submarine volcano that rises more than from the sea floor in the Sangihe Islands of Indonesia. Historical records show that several ephemeral islands were formed and disappeared. A high island was formed in 1835, but then dwindled to only a few rocks in 1848. A new island was reportedly formed in 1889 and it was high in 1894. Another new island was formed in 1919 but then disappeared by 1935. See also List of volcanoes in Indonesia References Active volcanoes of Indonesia Submarine volcanoes of Indonesia New islands Ephemeral islands Former islands from the last glacial maximum Seamounts of the Celebes Sea