Seismic hazard assessment for the main seismogenic zones in the Eastern Alps

  • Slejko D
  • Kijko A
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Abstract

A seismogenic zoning for the Eastern Alps is proposed. The characteristics of each zone are studied in detail and different statistical analyses performed to assess the slope of the Gutenberg-Richter relationship, the annual activity rate of earthquakes and the maximum expected intensity. Traditional methods, together with a new approach based on both historical and instrumental data, lead to estimates of the hazard parameters that are reasonably similar in most cases. The Gemona seismogenic zone is the most seismic of the nine zones considered and its computed hazard parameters are satisfactory from the statistical point of view. On the contrary, some other zones (e.g., Verona and Vicenza) show large inhomogeneities in the earthquake data set which, at present, consists of strong historical events but only few quakes of low magnitude. © 1991.

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Authors

  • Dario Slejko

  • Andrzej Kijko

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