[SSS16-P23] Post-seismic deformation of 2016 Kumamoto Earthquake by continuous GNSS network (3)
Keywords:GNSS, post-seismic deformation
To emphasize post-seismic deformation, trend at each site is removed. Trend is estimated by least squared method by using between 2004 to 2015. For GNSS sites occupied after the earthquake trend is interpolated by using trend at three neighbor sites.
Post-seismic deformation with large deformation is observed at sites which is located in the eastern side of Hinagu faults. Especially amount of deformation in NS component is large. Largest deformation is 13.5cm in the period from April, 2016 to December 2018 at MIFN. In EW component change in deformation occurred in January 2017. Velocity becomes smaller. In these sites post-seismic deformation is continuous at the moment.