Fig. 2
From: Focal mechanisms and stress field in the Nobi fault area, central Japan
a Assumed velocity structure of P-wave. Solid line indicates the structure used for routine hypocenter determination at Kamitakara Seismic Observatory, Kyoto University (Ito and Wada 2002). Broken line indicates the structure based on seismic tomography (Nakajima et al. 2014). b Earthquake hypocenters. Between May 2009 and May 2013, we located 890 events in the study area