Seismic hazard assessment for Iceland in terms of macroseismic intensity using a site approach

Vera D’Amico*, Dario Albarello, Ragnar Sigbjörnsson, Rajesh Rupakhety

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We present the results of probabilistic seismic hazard assessment for Iceland in the framework of the EU project UPStrat-MAFA using the so-called site approach implemented in the SASHA computational code. This approach estimates seismic hazard in terms of macroseismic intensity by basically relying on local information about documented effects of past seismic events in the framework of a formally coherent and complete treatment of intensity data. In the case of Iceland, due to the lack of observed intensities for past earthquakes, local seismic histories were built using indirect macroseismic estimates deduced from epicentral information through an empirical attenuation relationship in probabilistic form. Seismic hazard was computed for four exceedance probabilities for an exposure time of 50 years, equivalent to average return periods of 50, 200, 475 and 975 years. For some localities, further return periods were examined and deaggregation analysis was performed. Results appear significantly different from previous seismic hazard maps, though just a semi-qualitative comparison is possible because of the different shaking measure considered (peak ground acceleration versus intensity), and the different computational methodology and input data used in these studies.

Original languageEnglish
Pages (from-to)1797-1811
Number of pages15
JournalBulletin of Earthquake Engineering
Issue number7
Publication statusPublished - 1 Jul 2016

Bibliographical note

Publisher Copyright:
© 2015, Springer Science+Business Media Dordrecht.

Other keywords

  • Iceland
  • Macroseismic intensity
  • Seismic hazard
  • Site approach


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