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Report on Kaitoku Seamount (Japan) — 4 January-10 January 2023

Kaitoku Seamount

Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
4 January-10 January 2023
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2023. Report on Kaitoku Seamount (Japan). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 4 January-10 January 2023. Smithsonian Institution and US Geological Survey.

Weekly Report (4 January-10 January 2023)

Kaitoku Seamount


26.127°N, 141.102°E; summit elev. -95 m

All times are local (unless otherwise noted)

Discolored water around the Kaitoku Seamount was visible in 1 and 6 January Sentinel satellite images. Concentric circles of discolored water radiated out from the vent area and a plume drifted W. The plume of discolored water extended S in the 6 January image.

Geological Summary. A submarine eruption was observed in 1984 from Kaitoku Seamount (Kaitoku Kaizan), a three-peaked submarine volcano 130 km NNW of Kita-Iojima. A submarine eruption had previously been reported in 1543 from a point about 40 km to the SW, which the Japan Meteorological Agency attributes to Kaitoku.

Source: Sentinel Hub