The Amurian Plate is named after the Amur River, which forms the border between the Russian Far East and Northeast China.

[citation needed] The Amurian microplate is a division within the Eurasian plate, with an unknown western boundary, defined on the south by the Qinling suture zone[additional citation(s) needed] in central China and the Baikal Rift Zone and Stanovoy Mountains on the north.

GPS measurements indicate that the plate is slowly rotating counterclockwise.

The boundary with the Okhotsk Plate is the eastern margin of the Sea of Japan.

[3] It covers northeastern China, the Korean Peninsula, the Sea of Japan, Shikoku, Kyushu, southwest Honshu (Kansai, Chūgoku), eastern Mongolia and the south of Russian Far East.