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Around 23 million years ago, western Japan was a coastal region of the Eurasia continent. The subducting plates, being deeper than the Eurasian plate, pulled parts of Japan which become modern Chūgoku region and Kyushu eastward, opening the Sea of Japan (simultaneously with the Sea of Okhotsk) around 15–20 million years ago, with likely freshwater lake state before the sea has rushed in. [4 ...
Ankō Outcrop in the village of Ōshika in Nagano Prefecture is a natural monument of Japan. Japan Median Tectonic Line (中央構造線, Chūō Kōzō Sen), also Median Tectonic Line (MTL), is Japan's longest fault system. [3] [4] The MTL begins near Ibaraki Prefecture, where it connects with the Itoigawa-Shizuoka Tectonic Line (ISTL) and the ...
These plates are often grouped with an adjacent principal plate on a tectonic plate world map. For purposes of this list, a microplate is any plate with an area less than 1 million km 2 . Some models identify more minor plates within current orogens (events that lead to a large structural deformation of Earth's lithosphere ) like the Apulian ...
The model displayed remnants of submerged plates located under oceans and in the middle of continents, which—according to our current understanding of the plate tectonic cycle—are all too far ...
A map depicting the Japan Trench and its surrounding connections to other relevant trenches. The map was created using GeoMapApp. Topographic map of central Japan, showing location of trenches, tectonic plates and boundaries. The Japan Trench is an oceanic trench part of the Pacific Ring of Fire off northeast Japan.
Obduction zones occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction. [citation needed]
It cuts across Awaji Island, Japan and it is a branch of the Japan Median Tectonic Line which runs the length of the southern half of Honshu island. [2] The fault line itself and part of the damage caused by the Great Hanshin earthquake is preserved within the Nojima Fault Preservation Museum .
The Sea of Japan can be divided into sub-basins; the Japan Basin, Yamato Basin and Tsushima Basin. Seafloor spreading in the Sea of Japan was restricted to the Japan Basin and ceased by the middle Miocene. [4] Following the end of seafloor spreading, its eastern margin experienced weak compression between 10 and 3.5 million years ago.