Recent valorization of data distributed by CDGP: new analysis of persistent multiplets at Soultz-sous-Forêts, France

The CDGP (Centre de Données de Géothermie Profonde, Data Centre for Deep Geothermal Energy,
https://cdgp.u-strasbg.fr/ ) has been set up by the LabEx G-EAU-THERMIE PROFONDE (http://labex- geothermie.unistra.fr/) in 2016 to preserve, archive and disseminate data acquired on the geothermal sites of the Upper Rhine Graben (and possibly elsewhere). Since then, the CDGP follows state-of-the-art of data management in order to distribute standardised and FAIR (Findable, accessible, Interoperable and Re-usable) data. Early 2017, the first dataset corresponding to the 1993 stimulation test at the Enhanced Geothermal System site of Soultz-sous-Forêts has been published on the platform allowing new studies while using these legacy data. Although 1993 dataset has been thoroughly studied over the years, new discoveries are still possible. Recently revisiting the abundant seismic data recorded during this hydraulic stimulation, we investigated the
behaviour of repeating earthquakes induced by the fluid injection. We observed variations of the seismic sources parameters (rupture dimensions and seismic moments) in association with the variations in fluid pressure measured, indicating that the hydraulic parameters have a direct influence on the source of the repeating earthquakes. The hard work to retrieve, collect and convert into standardised formats the old geothermal data, documenting them with metadata and dealing with Intellectual Property Rights is necessary for new analysis and the valorisation of the patrimonial data. Data will also be available on the EPOS Anthropogenic Hazards platform (https://www.epos-
ip.org/tcs/anthropogenic-hazards).