Attenuation characteristics of the strong ground motion during the southern Hyogo earthquake : R. Mohamed, Individual Studies by Participants at the International Institute of Seismology and Earthquake Engineering, 31, 1995, pp 1–14

Abstract

The main purpose of this study is to evaluate the attenuation relation of Peak Ground Acceleration (PGA) during earthquakes. The used strong ground motion records were provided by several institutes for the Southern Hyogo earthquake of January 17,1995. The effects of the following factors were considered : selection of distance, direction of the fault rupture, soil condition and comparison of attenuation relation with other authors. Additionally, the attenuation of the vertical component, which seemed to have played an important role in the damage in Kobe area was covered. Similarly, the Southem Hyogo earthquake is an excellent opportunity to study attenuation of acceleration in the near field, that is, very close to the source. Research on strong ground motion characteristics is the basis for detailed discussion of important parameters to be considered when developing strong motion attenuation relation for use in earthquake engineering and seismic hazard studies.