Japan trench
The Japan Rift is a deep sea channel up to 8,410 m deep and 800 km long in the northwestern part of the Pacific Ocean (Pacific).
geography
It is located between Honshū ( Japan ) in the west, northwest and north, the Kuril Rift in the northeast, the Northwest Pacific Basin in the east, the Boning Rift in the south - both separated by the Sagami Rift - and the Philippines Basin in the southwest. There it lies between about 36 ° and 42 ° north latitude and 143 ° and 146 ° east longitude .
geology
The Japan Rift forms the northern part of the deeply incised seam between the Philippine plate in the west and the Pacific plate in the east.
In 2006, at a depth of 5000 meters, volcanoes about 50 meters in size (“ petit spots ”) were discovered for the first time. These volcanoes, which are only a few million years old, were not expected there, they represent a new type of volcano.
The Japan Trench is seismically active. With the Tōhoku earthquake in 2011 , one of the strongest earthquakes ever recorded occurred here.
See also
Individual evidence
- ↑ geowwissenschaften.de: Mysterious mini volcanoes - "Petit Spots" at the Japangraben
Coordinates: 40 ° N , 144 ° E