description Kavachi Overview
Kavachi is an active submarine volcano in the Solomon Islands, southwest of Vangunu Island in the western Pacific Ocean. Its shallow eruptions commonly involve explosive interaction between magma and seawater, sometimes producing temporary islands or cones that are subsequently eroded below sea level. Recorded activity dates from 1939, and repeated eruptions have made it one of the region's frequently observed submarine volcanoes.
insights Ranking position
Kavachi ranks #13 of 118 in the Tuff Cone ranking, behind Caldeira das Sete Cidades, ahead of Hanauma Bay.
help Kavachi FAQ
Where is the Kavachi submarine volcano?
Kavachi lies south of Vangunu Island in the Solomon Islands. Its vent is beneath the Pacific Ocean, although eruptions have repeatedly built temporary islands above the surface.
Why do Kavachi's islands keep disappearing?
Explosive eruptions pile loose ash and volcanic fragments around the vent, sometimes producing a short-lived island. Waves then erode the unconsolidated material until the summit drops below sea level again.
Were sharks really found inside Kavachi's crater?
Yes. A scientific expedition recorded scalloped hammerhead sharks and silky sharks inside the active submarine crater, leading to the popular nickname Sharkcano.
When was Kavachi first observed erupting?
Recorded observations date to 1939. It has since become known as one of the most frequently active submarine volcanoes in the southwestern Pacific.
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