Dependency of the injection induced seismicity b-value on the stress state of existing fractures

Yusuke Mukuhira1, Michael C Fehler1, Takatoshi Ito2, Hiroshi Asanuma3 and Markus O Häring4, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Tohoku University, Institute of Fluid Science, Sendai, Japan, (3)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (4)Häring Geo-Project, Liestal, Switzerland