Using precise trace gas measurements to investigate active fault: an example at the Atera Fault, Gifu prefecture, Japan

Michito Shimo1, Masakazu Niwa2, Kenji Amano2, Tomochika Tokunaga3, Kenichi Tonokura3, Toshifumi Matsuoka1 and Sebastien Biraud4, (1)Fukada Geological Institute, Tokyo, Japan, (2)JAEA Japan Atomic Energy Agency, Toki, Japan, (3)The University of Tokyo, Department of Environment Systems, Graduate School of Frontier Sciences, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8563, Japan, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States