Integrated study of source, path, and site effects on Kocaeli, Turkey, earthquake ground motions

Board Of Regents, Nshe, Obo University Of Nevada, Reno, Reno NV

Investigators

Abstract

The Kocaeli, Turkey, earthquake (M=7.4) of 17 August 1999 was particularly destructive because the fault ruptured in a densely developed urban area. This project is for an integrated study of the factors that controlled the nature of the ground motions: the earthquake source, wave propagation along the path, and near-surface modifications of these motions at the recording sites. The ground motions may be analogous to motions from earthquakes of this magnitude on strike-slip faults in the United States; in particular for the San Francisco Bay area and the Greater Los Angeles region. One critical result of the study will be calibration of parameters of the composite source model for a strike-slip earthquake with slip comparable to an earthquake on the San Andreas fault.