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Wiley InterScience

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The two-point correlation function of the seismic moment tensor
Y. Y. Kagan 1 L. Knopoff 1
  1 Institute of Geophysics, University of California, Los Angeles, California 90024, USA
Copyright 1985 Royal Astronomical Society
KEYWORDS
earthquake mechanism • earthquake statistics • fault mechanics • seismic moment

ABSTRACT

Summary. We use the invariants of the two-point correlation function of the seismic moment to investigate the degree of irregularity of an earthquake fault, i.e. to study the rapidity with which a complex fault changes its direction of orientation. The two-point correlation function is a fourth-order tensor which has three scalar invariants in the isotropic case. Although the accuracy of present-day catalogues of fault plane solutions is rather low for our purpose, nevertheless the invariants of these correlation tensors confirm the generally


Accepted 1985 March 14. Received 1985 March 5; in original form 1984 November 27

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1365-246X.1985.tb04330.x About DOI

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