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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 ...
Landslide scars visible on Mount Sarugabanba.. The origin of the Tenshō earthquake is not known, but geologists have presented different faults to be the possible source. . There is still debate about which fault zone caused the earthquake and even how did the earthquake unfold, through a single fault system rupture or even a multiple fault system rupture, given the massive death and ...
This is a timeline of Japanese history, comprising important legal, territorial and cultural changes and political events in Japan and its predecessor states. To read about the background to these events, see History of Japan .
There are several types of timeline articles. Historical timelines show the significant historical events and developments for a specific topic, over the course of centuries or millennia. Graphical timelines provide a visual representation for the timespan of multiple events that have a particular duration, over the course of centuries or ...
Geologic time is the timescale used to calculate dates in the planet's geologic history from its origin (currently estimated to have been some 4,600 million years ago) to the present day. Radiometric dating measures the steady decay of radioactive elements in an object to determine its age. It is used to calculate dates for the older part of ...
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It is the Lower-Upper Jurassic sediments in the East Asian continental margin that distributes in the eastern part of the Shimonoseki, Yamaguchi Prefecture, southwest Japan. The distribution of the Toyora Group extends north and south, and has been separated between north and south districts by the Tabe Basin and the Kikugawa Fault that is an ...
The rapid plate motion of the Izanagi plate caused northwest Japan and the outer zone of southwest Japan to drift northward. High-pressure metamorphic rocks were formed at the eastern margin of the drifting land mass in the Sanbagawa metamorphic belt , while low-pressure metamorphic rocks were formed at its western margin in the Abukuma ...