Submarine volcano NNE of Iriomotejima, 1924

A major submarine eruption occurred about 25 km north-northeast of Iriomote-jima Island in the southern Ryukyu Islands, part of the arc formed by subduction of the Philippine Sea Plate. It produced rhyolitic pumice rafts of an estimated volume of about 1 cubic kilometre, which currents carried along both coasts of Japan as far north as Hokkaido. The catalogue marks the explosivity index for this eruption as uncertain.

Eruption start

1924-10-31

Volcanic Explosivity Index (VEI)

4

Volcano

Submarine Volcano NNE of Iriomotejima

GVP volcano page

volcano.si.edu/volcano.cfm?vn=282010

Category: Disasters & Incidents

Tags: japan, ryukyu islands, submarine, pumice raft, uncertain vei

Coordinates: 24.57, 123.93

Part of Volcanic eruptions of VEI 4 from 1900 to 1949

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