Geosite introduction of Aso

31.Omine Volcano Geosite

Omine Volcano Geosite

Visit an active fault

Lava from Omine Volcano formed the plateau that is the centerpiece of this geosite. Later, seismic activity tilted the plateau. For that reason, the catchment area of the Shirakawa River, which originates in the caldera, grows extremely small in this area because of the seismic activity.

Omine Volcano and Takayubaru Lava Plateau

Omine Volcano was formed immediately before the birth of the current Aso Caldera, around 90,000 years ago. Massive quantities of lava flowed from the volcano forming a vast lava plateau (Takayubaru Plateau). Today the plateau serves as home to the Aso Kumamoto Airport.