Archive | 2021
Hydraulic and mechanical constraints on the magnitude Ml 5.2 earthquake of 11 November 2019 at Le Teil (France)
Abstract
On 11 November 2019, a Ml 5.2 earthquake broke the Rouvière fault in southeast France at Le Teil, close to the Rhone river. This recent seismic event is the strongest earthquake ever felt in France since the Arette (Pyrenees) earthquake in 1967. A priori, it is also a historically unprecedented earthquake in the surrounding low strain and stable continental region. By using an updated geological model, we focus this work on the comparison of the effect of hydraulic recharge linked to the infiltration of meteoric water in the period preceding the earthquake and the effect of the exploitation of a large limestone quarry in the vicinity of the epicenter.