| Titre | Géographie séismologique des Alpes occidentales | |
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| Auteur | Jean Demangeot | |
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Revue | Revue de Géographie Alpine |
| Numéro | vol. 67, no 2, 1979 | |
| Page | 7 pages | |
| Résumé anglais |
Abstract. — We ought to distinguish three sismic regions in the Western Alps. 1° The Briançonnais arc. Poorly deep focuses (30-40 km) are plumb over the orogene thickest part. Intensity is medium. 2° The Piemontese arc. Focuses are settled a little deeper (40-50 km), west side of the Ivea gravity crest, and they fall in with the overthrusted "Schistes lustrés". The dangerous Ligurian zone belongs to this arc. 3° The outer sismic regions. The rectilinear Chablais-Tricastin axis, on one hand, with superficial focuses ; Low Durance swarm, with pyrenean orientation, on the other hand. Therefore we do not notice, actually, any préalpine seismic arc. Source : Éditeur (via Persée) |
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| Article en ligne | https://www.persee.fr/doc/rga_0035-1121_1979_num_67_2_2164 |
