Comment on "Influence of focal mechanism in probabilistic seismic hazard analysis" by Vincenzo Convertito and André Herrero

F. O. Strasser, V. Montaldo, J. Douglas, J. J. Bommer

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The influence of style-of-faulting on strong ground motions has been the subject of debate for some time. Although some controversy persists, the general consensus is that ground motions produced by reverse faults are higher than those produced by normal faults, whereas motions from strike-slip faults are somewhere in between. In a recent article, Convertito and Herrero (2004) derived a correction factor for focal mechanism to be applied to predictive equations. This issue was previously addressed by Bommer et al. (2003). Although this article is cited by Convertito and Herrero, it seems that its aims and scope were not well understood, and we would therefore like to clarify what the method presented therein entails, especially because we feel that Convertito and Herrero's approach of characterizing focal mechanisms based solely on the radiation pattern is difficult to justify.
Original languageEnglish
Pages (from-to)750-753
Number of pages4
JournalBulletin of the Seismological Society of America
Volume96
Issue number2
DOIs
Publication statusPublished - Apr 2006

Keywords

  • ground motion prediction
  • seizmic hazards
  • ground-motion estimation equations

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