Accession Number:

AD0763819

Title:

Dislocation Motion and Theoretical Far-Field Source Spectra of Four California Earthquakes.

Descriptive Note:

Semi-annual technical rept. no. 2, 1 Nov 72-30 Apr 73,

Corporate Author:

TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP

Personal Author(s):

Report Date:

1973-05-15

Pagination or Media Count:

85.0

Abstract:

Haskells moving dislocation model has been applied to interpret the near-field strong-motion accelerograms of the San Fernando earthquake and its first aftershock, the Parkfield earthquake, and the Borrego Mountain earthquake. For the San Fernando earthquake and the Parkfield earthquake, an instantaneous dislocation model is rejected on the basis of the observed strong-motion waveforms. However, the evidence for the San Fernando first aftershock is inadequate to choose between an instantaneous dislocation model and a propagating dislocation model. The estimated dislocation parameters for the near-field observations are then used to predict the far-field P- and S-wave source spectra. Modified author abstract

Subject Categories:

  • Seismology
  • Seismic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE