Articles | Volume 14, issue 10
https://doi.org/10.5194/se-14-1067-2023
https://doi.org/10.5194/se-14-1067-2023
Research article
 | 
18 Oct 2023
Research article |  | 18 Oct 2023

Glacial-isostatic-adjustment strain rate–stress paradox in the Western Alps and impact on active faults and seismicity

Juliette Grosset, Stéphane Mazzotti, and Philippe Vernant

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Short summary
In glaciated regions, induced lithosphere deformation is proposed as a key process contributing to fault activity and seismicity. We study the impact of this effect on fault activity in the Western Alps. We show that the response to the last glaciation explains a major part of the geodetic strain rates but does not drive or promote the observed seismicity. Thus, seismic hazard studies in the Western Alps require detailed modeling of the glacial isostatic adjustment (GIA) transient impact.