United States · Stratovolcano
Kasuga Seamount
Kasuga 1
- Type
- Stratovolcano
- Elevation
- 598m (submarine)
- Last eruption
- 1959
- Type
- Stratovolcano
- Country
- United States
- Region
- Northwestern Pacific / Mariana Volcanic Arc
- Elevation
- 598m (submarine)
- Coordinates
- 21.765, 143.710
- Last eruption
- 1959
- Tectonic setting
- Subduction zone / Crustal thickness unknown
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
Kasuga 1, the northernmost of three seamounts in the Kasuga seamount chain SE of Fukujin, rises from a depth of 3,000 m to within about 600 m of the ocean surface.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Kasuga 1 is a seamount and active volcano of the Mariana volcanic arc. It rises 3,000 m (9,800 ft) above the seafloor to about 600 m (2,000 ft) beneath the ocean surface. The volcano represents the northernmost of the three that forms the Kasuga seamount chain and is located southeast of Fukujin. Its last confirmed eruption was in July 1959 which produced pumice and another possible eruption may have occurred in 1975 when discolored water was observed around the seamount. Based on the samples of basalt and andesite collected at the summit, it is the oldest of the seamounts.
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Eruption history
2 recordedGlossaryRecord summary
- Confirmed eruptions
- 1
- Uncertain eruptions
- 1
- Span of confirmed record
- 1959 – 1959
- Largest confirmed eruption
- VEI 0 (1959)
- Confirmed eruptions since 1900
- 1
Detailed timeline
- 1975VEI 0Method not stated1975-11-16 – end unknown21.78 N 143.71 E
- 1959VEI 0Observed1959-07-15 – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.