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Mount Tencho

Tenchozan

Crater rows · Japan · 1046m

The Tenchozan volcano is in the center of this September 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 6 km across). There are two crater chains along the summit area, the 1.8-km-long northern chain consisting of ten craters, and the 700-m-long southern chain consisting of four craters. The individual crater diameters are up to 250 m (northern chain) and 100 m (southern chain), and reach up to 70 and 30 m deep, respectively.
The Tenchozan volcano is in the center of this September 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 6 km across). There are two crater chains along the summit area, the 1.8-km-long northern chain consisting of ten craters, and the 700-m-long southern chain consisting of four craters. The individual crater diameters are up to 250 m (northern chain) and 100 m (southern chain), and reach up to 70 and 30 m deep, respectively. · Photo: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/). · Wikimedia Commons
Type
Crater rows
Country
Japan
Region
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Elevation
1046m
Coordinates
44.044, 145.086
Last eruption
Unknown
Landform
Cluster
Geological summary

Phreatic eruptions at Tenchozan occurred approximately 1,900 years ago. Towards the end of those eruptions there was a phreatomagmatic or small magmatic eruption. The chain of explosion craters, stretching from the NE to the SW, are considered to be a result of this series of eruptions (Goto et al., 2005; Goto, 2011).

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
100~100 · 1 eruptions · max VEI 3100100101101101

Detailed timeline

  1. 100VEI 3Geological estimate
    100 – Ongoing

External links

⚠ For reference only. Not for emergency response.