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Analysis of the Mw 4.3 Lorient earthquake sequence: a multidisciplinary approach to the geodynamics of the Armorican Massif, westernmost France

Perrot, J; Arroucau, Pierre; Guilbert, J; Deverchere, J; Mazabraud, Y; Rolet, J; Mocquet, Antoine; Mousseau, M; Matias, L

Description

A Mw 4.3 earthquake occurred on 2002 September 30, in the Armorican Massif, NW France. Since it was one of the largest events ever recorded in this region, this was the opportunity to improve our seismotectonic knowledge of the Armorican Massif. We performed a post-seismic survey (SISBREIZH), which allowed us to locate accurately 62 aftershocks within 14 days. An analysis of the main shock using broadband records provided a normal fault mechanism with a dextral strike-slip component located at...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/28824
Source: Geophysical Journal International
DOI: 10.1111/j.1365-246X.2005.02706.x

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