Abstract Using seismic and geodetic methods, we analyze the seismicity of the northern segment of the Yishu fault zone after the 2011 M9.0 magnitude earthquake in Japan. It is considered that the relative quiescence of seismicity in the region since 2012 is due to the fact that the M9.0 earthquake in Japan affected the regional stress field. The northern section of the Yishu fault zone is greatly affected within 1 year of the earthquake, and the seismicity declined after 2 years. A time scan of b values also shows that the northern segment of the Yishu fault zone is now under low stress field control. No earthquakes greater than magnitude 4 occurred in the northern section of the Yishu fracture zone since 2012, although there is a possibility of an earthquake of magnitude 4.
CHANG Jinlong,GAN Weijun,HU Baohui et al. Seismic Activity Analysis of the Northern Segment of Yishu Fault Zone after M9.0 Earthquake in Japan[J]. jgg, 2018, 38(8): 787-790.
CHANG Jinlong,GAN Weijun,HU Baohui et al. Seismic Activity Analysis of the Northern Segment of Yishu Fault Zone after M9.0 Earthquake in Japan[J]. jgg, 2018, 38(8): 787-790.
