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Fossa Magna
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Fossa Magna

rift, Japan
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Quick Summary

The Fossa Magna is a significant geological feature in Japan, characterized as a large rift lowland. This rift traverses the widest part of Honshu, Japan's main island, extending from the Sea of Japan to the Pacific Ocean. The Fossa Magna is part of the complex tectonic activity that shapes Japan, a region known for its instability due to the movement of Earth's crustal plates. This geological activity results in frequent earthquakes and volcanic eruptions. The rift itself is partially filled with mountains and volcanoes belonging to the southern part of the East Japan Volcanic Belt.12

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2 Britannica Sources
  1. Japan - Geologic framework
  2. Japan - The major physiographic regions

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