Minami Kasuga Volcano
Updated: Nov 10, 2025 11:02 GMT -
submarine volcano
Volcano Islands (Japan), 21.6°N / 143.64°E 
Summit height: -274 m / -899 ft
Current status: normal or dormant (1 out of 5)
Minami Kasuga (South Kasuga, or Kasuga 2) is the central of 3 NNE-SSW trending volcanoes forming the Kasuga seamount chain, which trends SSE from the volcanic front of the Izu-Marianas arc.
The volcano rises from about 3000 m depth to within 170 m of the sea surface and is the highest and largest volume of the 3 volcanoes.
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Minami Kasuga volcano eruptions: unknown, probably less than 1000 years ago
Latest nearby earthquakes
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Background
Two subsidiary cones are located low on the eastern flank. The morphology of Minami Kasuga is more complex than Kasuga 1 volcano to the north, and prominent ridges separate slopes of interspersed volcaniclastic and lava flow fields. Radionuclide decay rates indicate an age for Minami Kasuga of less than 8000 years and probably less than 1000 years; radium/thorium disequilibrium ratios suggest the flows may be only a few centuries old (Fryer et al., 1997). Active hydrothermal fields are located at the summit of Minami Kasuga, at the base of summit ridges, and on the lower flanks.---
Fryer P, Gill J B, Jackson M C, 1997. Volcanological and tectonic evolution of the Kasuga seamounts, northern Mariana Trough: Alvin submersible investigations. J Volc Geotherm Res, 79: 277-311
from: Smithsonian / GVP volcano information
Latest satellite images
Minami Kasuga Volcano Maps
Below is a selection of maps showing the location and surroundings of the volcano at various resolutions based on aerial-imagery / terrain maps. Feel free to use them for non-commercial purposes on your blog or website as long as you credit them with a link back to this page (click to copy it).
Satellite/aerial-type map of Minami Kasuga volcano (world scale)
Terrain-type map of Minami Kasuga volcano (world scale)
Satellite/aerial-type map of Minami Kasuga volcano (region scale large)
Terrain-type map of Minami Kasuga volcano (region scale large)
Satellite/aerial-type map of Minami Kasuga volcano (region scale medium)
Terrain-type map of Minami Kasuga volcano (region scale medium)
Satellite/aerial-type map of Minami Kasuga volcano (region scale small)
Terrain-type map of Minami Kasuga volcano (region scale small)
Satellite/aerial-type map of Minami Kasuga volcano (local scale large)
Terrain-type map of Minami Kasuga volcano (local scale large)
Satellite/aerial-type map of Minami Kasuga volcano (local scale medium)
Terrain-type map of Minami Kasuga volcano (local scale medium)
Satellite/aerial-type map of Minami Kasuga volcano (local scale small)
Terrain-type map of Minami Kasuga volcano (local scale small)
Satellite/aerial-type map of Minami Kasuga volcano (scale of 10s of km)
Terrain-type map of Minami Kasuga volcano (scale of 10s of km)
Satellite/aerial-type map of Minami Kasuga volcano (scale of 20-40 km)
Terrain-type map of Minami Kasuga volcano (scale of 20-40 km)
Satellite/aerial-type map of Minami Kasuga volcano (scale of approx. 10-20 km)
Terrain-type map of Minami Kasuga volcano (scale of approx. 10-20 km)
Satellite/aerial-type map of Minami Kasuga volcano (scale of 5-10 km)
Satellite/aerial-type map of Minami Kasuga volcano (scale of few kilometers)
