Following seismic events at the geothermal project in Vendenheim in the Alsace, France in November 2019, that had a magnitude of around 3.1 on the Richter scale, local authorities ordered so-called tracer tests to investigate.
These tests though also are said to have caused seismic events with a magnitude of 1.1. to 2.8 in La Wantzenau north of Strasbourg. Immediately the, tracer tests were stopped. A so-called “safety circulation” continued, however. Nevertheless, the underground did not come to rest. On Friday, December 4, 2020, a seismic event with a magnitude of 3.5 was felt as far as the Ortenau across the border in Germany, followed by another tremor with a magnitude of 2.7. There was no damage to buildings or persons.
Naturally this has caused a lot of speculation and sensationalistic media coverage in France and beyond. To address some of the coverage and discussions surrounding these events, IGC.events is inviting to a webinar on Friday, December 18, 2020 with Prof. Jean Schmittbuhl from EOST – École et Observatoire des Sciences de la Terre – Université de Strasbourg et CNRS (Directeur de CNRS).
Prof. Schmittbuhl has a profound knowledge on the geomechanic and seismology in the Upper Rhine Valley. He will give give an update on what happened in the project and in the subsurface of Vendenheim.
So don’t miss to join this timely webinar, and register here.