Seismic moment‐frequency relation for shallow earthquakes: Regional comparison

  title={Seismic moment‐frequency relation for shallow earthquakes: Regional comparison},
  author={Yan Y. Kagan},
  journal={Journal of Geophysical Research},
  • Y. Kagan
  • Published 1997
  • Geology
  • Journal of Geophysical Research
We determine the parameter values for the seismic moment-frequency relation using Flinn-Engdahl's regionalization of global seismicity and the Harvard centroid-moment tensor data. The earthquake size distribution is approximated by the gamma law: a version of the Gutenberg-Richter distribution with an exponential taper at the maximum moment. There is no statistically significant variation of the fJ value (the analog of the b value) for all seismic regions except for the midocean ridge systems… Expand

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