Journal of Seismology and Earthquake Engineering

Journal of Seismology and Earthquake Engineering

Focal Depths of Moderate and Large Size Earthquakes in Iran

Document Type : Seismology and Engineering Seismology

Authors
1 Ph.D. Student, Bullard Laboratories, Cambridge University
2 Cambridge University
Abstract
Accurate focal depth estimates are essential for the correct interpretation of seismicity data in terms of regional tectonics and earthquake hazard assessment. Published global earthquake catalogues are a common source of focal depth information, but how accurate are they? We compare estimates of focal depths from the Harvard CMT catalogue and the Engdahl et al [8] relocations of the ISC catalogue with those determined by teleseismic waveform inversion methods, and find that the catalogues can be in error by up to 60km.
Keywords

Volume 4, Issue 2 and 3
Summer 2002
Pages 1-10

  • Receive Date 10 September 2014
  • Accept Date 26 December 2020
  • Publish Date 01 July 2002