Variability of Parameters of Earthquake Ground Motion Recorded by Strong Motion Arrays

by E. Vanmarcke, Princeton Univ, United States,
M. Miyamura, Princeton Univ, United States,
J. Cunniff, Princeton Univ, United States,
K. Kanda, Princeton Univ, United States,
T. Yamashita, Princeton Univ, United States,
T. Ohta, Princeton Univ, United States,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

The spatial variation of scalar measures of earthquake ground motion, such as peak ground acceleration, strong motion duration, and root-mean-square amplitude, along with various spectral parameters (period, bandwidth factor) are examined for several earthquakes recorded by the Taiwan SMART-1 and Japan Higashi-Matsuyama (HMY) Arrays. Moving-window spectral density functions and related time-dependent spectral parameters indicating the evolving ground motion intensity and frequency content, are also calculated and interpreted for events recorded at both sites.

Subject Headings: Ground motion | Earthquakes | Parameters (statistics) | Three-dimensional analysis | Spatial analysis | Seismic waves | Power spectral density | Asia | Taiwan | Japan

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