Magnitude–distance relations for earthquake-induced landslides in Greece |
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| Authors: | Gerassimos A Papadopoulos Areti Plessa |
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| Institution: | Institute of Geodynamics, National Observatory of Athens, 11810 Athens, Greece |
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| Abstract: | A data set of 47 earthquake-induced landslides occurring in Greece from AD 1650 to 1995 has been compiled, and the landslide distribution has been examined. The spatial distribution indicates landslides occurrence almost everywhere in Greece with the exception of the north Greek mainland, which is likely due to the low occurrence frequency of large earthquakes. The earthquake magnitude, Ms, ranges between 5.3 and 7.9, while the main bulk of events falls within the range 7.5≥Ms≥5.3 with peaks at Ms=6.4 and 6.7. The upper bound of the maximum epicentral distance, Re, from a reported landslide has been approximated by the line log(Re)=?2.98+0.75Ms for Ms≥5.3, which is compatible with curves proposed world-wide and constitutes a realistic solution at least for hazard assessment purposes. We discuss the importance of the results for assessing hazards from earthquake-induced landslides and for calculating focal parameters of historical earthquakes. |
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| Keywords: | Earthquakes Greece Landslides |
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