On the base of analysis of landsat-2 image （Sep. 11

1975） in the mountains of Central Japan

author indicated that the Nuxiu fault is an active fault with right lateral strike-slip. The reform of streams showing on the image are distinct. Activity o fthe fault belongs to a degree. By synthetic analysing all of active faults around the Hida mountains

the largest com-pressive stress is determined to be E-W direction

due to the collision of the pacific ocean plate-phillippine plate with the eurasian plate including the Japan islands. Besids

the maximum upheaval of the Hida mountains and the activity of the Narikura volcanic zone duringthe quaternary period also came from same reason. As regards the posibility of earthquake along the fault

author subjected that it should occur in the south-west part of the Nuxiu active fault.