The Beppu-Shimabara graben (ć„ćșâ泶ćć°æș枯, Beppu-Shimabara ChikĆtai) is a geological formation that runs across the middle of Kyushu, Japan, from Beppu Bay in the east to the Shimabara Peninsula in the west. [1] The area is known for its volcanic, geothermal, and seismic activity. [2] It encompasses several significant geological features, including a number of active volcanoes. The most prominent is Mount Aso, an active volcanic formation consisting of one of the world's largest calderas and a central crater group with five distinct peaks. [3] Beppu Onsen is located at the eastern end of the graben.
It is located at the overlap of two magma typesâwithin plate type to the north, and island-arc type to the southâthat erupted in the Quaternary: to the north, the eastern end of the Eurasian Plate and, to the south, the subduction zone of the Philippine Sea Plate. [4] It runs about 200 kilometres east to west and its north-south width varies between 20 and 30 kilometres. [5]
The Beppu-Shimabara graben (ć„ćșâ泶ćć°æș枯, Beppu-Shimabara ChikĆtai) is a geological formation that runs across the middle of Kyushu, Japan, from Beppu Bay in the east to the Shimabara Peninsula in the west. [1] The area is known for its volcanic, geothermal, and seismic activity. [2] It encompasses several significant geological features, including a number of active volcanoes. The most prominent is Mount Aso, an active volcanic formation consisting of one of the world's largest calderas and a central crater group with five distinct peaks. [3] Beppu Onsen is located at the eastern end of the graben.
It is located at the overlap of two magma typesâwithin plate type to the north, and island-arc type to the southâthat erupted in the Quaternary: to the north, the eastern end of the Eurasian Plate and, to the south, the subduction zone of the Philippine Sea Plate. [4] It runs about 200 kilometres east to west and its north-south width varies between 20 and 30 kilometres. [5]