Influence of fault surface conditions on foreshock activity in large-scale biaxial friction experiment

Futoshi Yamashita1, Eiichi Fukuyama1, Shiqing Xu1, Hironori Kawakata1,2, Kazuo Mizoguchi1,3 and Shigeru Takizawa1, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Ritsumeikan University, Kusatsu, Japan, (3)Central Research Institute of Electic Power Industry, Tokyo, Japan