[SSS13-P16] Difference in short-period level between the surface and buried fault rupture crustal earthquake in Japan
Keywords:Inand crustal earthquake, Surface fault rupture, Seismic source characteristics, Short-period level
The Headquarters for Earthquake Research Promotion compiled a method for strong motion prediction (recipe). Short-period level as a parameter of the recipe is an important factor that affects generation of short-period ground motion. Due to the difference in ground motion characteristics between surface and buried fault rupture, the short-period level may also be different between the two rupture types. In this study, we organize short-period levels that evaluated characteristic source models by empirical Green’s function method, and investigated empirical relations between short-period level and seismic moment for both surface and buried fault rupture crustal earthquake in Japan.
Somerville, P. G.(2003) : Physics of the Earth and Planetary Interior, 137, pp.201-212.
Kagawa et al.(2004) : Earth planet and space, 56, 3-14.