Skip to main content
Back to map
CompareShow on map

Japan · Lava dome

Kōzu-shima

Kozushima

Type
Lava dome
Elevation
572m
Last eruption
838
Kōzu-shima
Photo: Mkill · CC BY 2.5 · Wikimedia Commons
Type
Lava dome
Country
Japan
Region
Northwestern Pacific / Izu Volcanic Arc
Elevation
572m
Coordinates
34.219, 139.153
Last eruption
838
Tectonic setting
Subduction zone / Oceanic crust (< 15 km)
Landform
Composite
Major rock type
Rhyolite

Geological summary

A cluster of rhyolitic lava domes and associated pyroclastic deposits form the 4 x 6 km island of Kozushima in the northern Izu Islands.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

Kōzu-shima (神津島) is a volcanic Japanese island in the Philippine Sea. The island is administered by Tōkyō and is located approximately 30 kilometres (19 mi) northwest of the Miyake-jima and 14 kilometres (8.7 mi) southwest of the Nii-jima. It is one of the Izu Seven Islands, a group of the seven northern islands of the Izu archipelago. Kōzushima is administratively part of Kōzushima Village, under Ōshima Subprefecture of Tokyo Metropolis. As of 2017, the island's population was 1,952. Kōzushima is within the boundaries of the Fuji-Hakone-Izu National Park.

Wikipedia · CC BY-SA · Read full article →

Eruption history

5 recordedGlossary

Record summary

Confirmed eruptions
4
Uncertain eruptions
1
Span of confirmed record
8050 BCE – 838
Largest confirmed eruption
VEI 4 (838)
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
8050 BCE~7754 BCE · 1 eruptions · max VEI ?940 BCE~643 BCE · 1 eruptions · max VEI ?347 BCE~51 BCE · 1 eruptions · max VEI ?542~838 · 2 eruptions · max VEI 48050 BCE5976 BCE3606 BCE1532 BCE542

Detailed timeline

  1. 838VEI 4Observed
    838-08-02 – end unknown
    Tenjo-san
  2. 832VEI ?Method not stated
    832 – end unknown
  3. 100 BCE (±950 yrs)VEI ?Geological estimate
    100 BCE – end unknown
    NW tip of island (Kobe-yama)
  4. 750 BCE (±700 yrs)VEI ?Geological estimate
    750 BCE – end unknown
    N tip of island (Anano-yama, Hanatabe)
  5. 8050 BCEVEI ?Geological estimate
    8050 BCE – end unknown
    Jogo-yama

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.