Active fault along the southern margin of the Hitoyoshi Basin, Kumamoto Prefecture, southwest Japan.

Abstract

The Hitoyoshi Basin is located at the southern part of Kumamoto Prefecture, southwest Japan. The basin has been considered to be a fault angle depression bounded by fault at the southern margin of the basin, named here the southern marginal fault of the Hitoyoshi Basin. This fault extends NE-SW direction for about 22 km, and has a sense of right lateral strike-slip with a northwest downthrown vertical component of displacement.