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Preliminary results of static and dynamic reconstruction of Güevéjar landslide (Granada, Spain) during 1755 Lisbon and 1884 Andalusian earthquakes

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Rodríguez Peces, Martín Jesús and García Mayordomo, Julián and Azañón, J.M. and Insúa Arévalo, Juan Miguel and Jiménez Pintor, J. (2009) Preliminary results of static and dynamic reconstruction of Güevéjar landslide (Granada, Spain) during 1755 Lisbon and 1884 Andalusian earthquakes. In 1st INQUA-IGCP 567 International Workshop on Earthquake Archaeology and Palaeoseismology, 7-13 de septiembre de 2009, Baelo Claudia (Cádiz, España).

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Abstract

In this work, we present preliminary results of a reconstruction of the Güevéjar landslide (Granada, south Spain) during the 1755 Lisbon and 1884 Andalusian earthquakes. We perform a back‐analysis of the landslide to estimate the static safety factor and the critical
acceleration previous to both earthquakes and for the present‐day situation. We obtain a critical intensity of V which matches the minimum intensity grade required to trigger coherent landslides. We conclude that the Güevéjar landslide is stable at present‐day conditions but its
reactivation is expected in case of an earthquake with a similar intensity to that during the 1884 Andalusian earthquake (I=VI‐VII) or larger.


Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Earthquake, Güevéjar, Landslide, Newmark
Subjects:Sciences > Geology
Sciences > Geology > Seismology
Sciences > Geology > Geodynamics
ID Code:20813
Deposited On:16 Apr 2013 07:30
Last Modified:17 Apr 2015 08:59

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