*Norio Shigematsu¹, Thomas Yeo^1,2,3, Simon Richard Wallis², Kiyokazu Oohashi¹, Takuma Katori⁴, Keita Kobayashi⁵, Tatsuya Sumita⁶, Ayumu Miyakawa⁶, Kohtaro Ujiie³, Chunjie Zhang⁷ (1.Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.School of Science, University of Tokyo, 3.School of Life and Environmental Sciences, Tsukuba University, 4.Fossa Magna Museum, 5.Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 6.Research Institute of Geology and Geoinformation, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 7.Earthquake Research Institute, University of Tokyo)

*Shota Komagino¹, Kohtaro Ujiie¹, Thomas Yeo¹, Norio Shigematsu² (1.University of Tsukuba, 2.National Institute of Advanced Industrial Science and Technology)

*Yuto Yamasaki¹, Kohtaro Ujiie¹, Thomas Yeo¹, Shota Komagino¹, Norio Shigematsu² (1.University of Tsukuba, 2.National Institute of Advanced Industrial Science and Technology (AIST))

*Yukiko Kita^1,2, Jun Muto¹, Norio Shigematsu², Sando Sawa¹, Keita Kobayashi³, You Zhou⁴ (1.Department of Earth Science, Graduate school of Science, Tohoku University, 2.Research Institute Earthquake and Volcano Geology Geological Survey of Japan, AIST, 3.Nanodimensional Standards Group, Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan (NMIJ), AIST, 4.Multi Material Research Institute, National Institute of Advanced Industrial Science and Technology, AIST)