1IPGP - Institut de Physique du Globe de Paris (IPGP, 1 rue Jussieu, 75238 Paris cedex 05 ; Université Paris Diderot, Bât. Lamarck A case postale 7011, 75205 Paris CEDEX 13 - France)
Abstract : The Thurwieser landslide that occurred in Italy in 2004 and the seismic waves it generated have been simulated and compared to the seismic signal recorded a few tens of kilometers from the landslide source (i.e., landquake). The main features of the low frequency seismic signal are reproduced by the simulation. Topography effects on the flowing mass have a major impact on the generated seismic signal whereas they weakly affect low-frequency wave propagation. Simulation of the seismic signal makes it possible to discriminate between possible alternative scenarios for flow dynamics and to provide first estimates of the rheological parameters during the flow. As landquakes are continuously recorded by seismic networks, our results provide a new way to collect data on the dynamics and rheology of natural flows.
Type de document :
Article dans une revue
Geophysical Research Letters, American Geophysical Union, 2010, 37 (15), pp.L15305. 〈10.1029/2010GL043512〉
https://hal-upec-upem.archives-ouvertes.fr/hal-00693018
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Dernière modification le : mercredi 21 mars 2018 - 18:57:20
Document(s) archivé(s) le : dimanche 4 février 2018 - 13:51:23
P. Favreau, Anne Mangeney, A. Lucas, G. Crosta, François Bouchut. Numerical modeling of landquakes. Geophysical Research Letters, American Geophysical Union, 2010, 37 (15), pp.L15305. 〈10.1029/2010GL043512〉. 〈hal-00693018〉
