The Hanaori fault is a large fault that extends NNE-SSW for about 50km from Imazu to Kyoto, in central Japan. Generally, it is well known that the most of Hanaori fault is active in late Quaternary time with right-lateral slip, but its history of recent faulting events does not become clear yet. So we excavated this fault at Tochudani, west of Imazu. As a result, it became clear that the Hanaori fault had displaced surely in historic time. Its age is after A. D.875-1028 year, the early Heian period. It is estimated that this is the latest faulting event of the Hanaori fault and the rightlateral displacement of at least 3.5 m occurred dring the event. The 1185 Bunji earthquake of M 7.4or the 1662 Kanbun earthquake of M 71/4-7.6, both of which are known as big historical earthquakes that gave disaster of extreme severity to Kyoto, has possibility to be identified this Hanaori's faulting event.
