Seismic hazard assessment for low-seismicity areas — Case study: Northern Germany |
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Authors: | Gottfried Grünthal Christian Bosse |
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Affiliation: | (1) GeoForschungsZentrum Postdam, Telegrafenberg C3, D-14473 Postdam, Germany |
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Abstract: | The problem of assessing seismic hazard in low-seismicity areas becomes obvious in many practical applications. A typical low-seismicity area, which experienced damaging earthquakes in historical times, is the North German Plain, for which a case study is presented. It is shown how seismic hazard assessments are influenced by different interpretations of historical key earthquakes, changes in b-value as well as variations of the upper bound magnitude assumed for the seismic source regions. The latter strongly influences the hazard results in the case of very low b-values for long return periods. |
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Keywords: | low seismicity b-value northern Germany upper bound magnitude seismic source regions |
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