Seismic hazard assessment of Greenland

Authors

  • Peter Voss Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • Stine Kildegaard Poulsen Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
  • Sebastian Bjerregaard Simonsen Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
  • Søren Gregersen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark

DOI:

https://doi.org/10.34194/geusb.v13.4976

Abstract

Earthquake activity in Greenland has been registered and mapped since 1907 (Larsen et al. 2006) and thus a long (albeit relatively sparse) record of seismic activity is available for evaluation of seismic hazard and risk. Seismic hazard assessment is carried out by judging the probability of future earthquakes in a given region and is based on statistic treatment of earthquake data. The determination of the seismic hazard is the first step in an evaluation of seismic risk, i.e. the possible economic costs and loss of human life after an earthquake. The motivation for this seismic hazard study is the registration of four significant earthquakes in Greenland in 2005. The Geological Survey of Denmark and Greenland (GEUS) received reports of all four earthquakes from residents who had felt the shaking. The 2005 earthquakes were located at or near Qeqertarsuaq on 30 March, Sisimiut on 23 July, Station Nord on 30 August and Attu on 23 October (Fig. 1), with magnitudes on the Richter scale of 4.3, 4.1, 5.1 and 2.5, respectively. The earthquake in Attu led to the inhabitants fleeing in their boats.

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Published

2007-10-12

How to Cite

Voss, P. ., Kildegaard Poulsen, S. ., Bjerregaard Simonsen, S. ., & Gregersen, S. . (2007). Seismic hazard assessment of Greenland. GEUS Bulletin, 13, 57–60. https://doi.org/10.34194/geusb.v13.4976

Issue

Section

RESEARCH ARTICLE | SHORT

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