Active Fault Research Center, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Site 7, 1-1-1 Higashi, Tsukuba, 305-8567 Japan
University of Colorado, Department of Geological Sciences, Boulder, CO 80309 -039 United States
Hosei University, Department of Geoscience, Aihara-Cho, 4342, Machida, 194-0298 Japan