Rapid Derivation of Rupture History for Large Earthquakes

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Abstract
The use of waveform inversion schemes for kinematic analysis of the seismic source has increased dramatically in recent years. These schemes have been used to examine in detail the spatial distribution of coseismic slip on the causative earthquake fault. The studies involve either a linear or a non-linear inversion of the seismic body waves to model the rupture history on a prescribed fault of finite extent (e.g., Hartzell and Heaton, 1983; Kikuchi and Fukao, 1985; Yoshida, 1986; Fukuyama and Irikura, 1986; Takeo, 1987; Beroza and Spudich, 1988; Hartzell, 1989; Das and Kostrov, 1990). The inversion methods differ, but the procedure is similar in that it requires a prior knowledge of the earthquake fault geometry.

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