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Long Island Volcano - John Seach
Madang Province, Papua New Guinea
5.358S, 147.12E
summit elevation 1280 m
complex volcano
Long Island is located 136 km east of Madang. An eruption in 1660 was one of the largest explosive eruptions in New Guinea. Tephra from the eruption reached the New Guinea highlands.
The island is 30 km long and 21 km wide. A large part of the interior is occupied by a crater lake. Lake Wisdom is 12 km long and 10 km wide, located at an altitude of 150 m. The active crater is located 3 km from the southern shore of Lake Wisdom.
In November 2007 a magnitude 6.7 earthquake hit 54 km south of the volcano. Long Island activity includes Strombolian and underwater eruptions.
Long Island Volcano Eruptions
1993, 1976, 1973-74, 1968, 1961?, 1955, 1953-54, 1943, 1938, 1933, 1660.