This dataset collects user reactions on social networks, specifically Facebook and Twitter, regarding geothermal energy in Alsace, in connection with the perception of earthquakes. In the context of an environmental controversy, this study highlights the role of these digital platforms as spaces for expression and public debate. In this dataset, publications by various actors are analyzed, including industrial players involved in geothermal projects, associations engaged in environmental issues, public institutions such as the prefecture and municipalities, as well as academic institutions such as EOST. The media, as vectors of information and debate, also play a role in shaping the discourse and influencing perceptions around this controversy. This study covers the period from 21/09/2015 to 24/03/2022

The aim of the GeORG project (Geopotentials of the deep Upper Rhine Graben, https://www.geopotenziale.org/home/index_html) was to create a 3D model of the geological structure of the Upper Rhine Graben down to a depth of several kilometers. The project began in October 2008 and ended in December 2012. GeORG offers a complete geoscientific information base. Maps showing the deep structure and spatial distribution of geological layers and temperatures have been extracted. Geological cross-sections can be generated over the entire study area and in all directions. These show the stratigraphic position and stacking of layers in space. GeORG has created an information access platform for companies, public and private project developers and research organizations. The results are accessible to all at https://maps.geopotenziale.eu. Several products from the GeORG mapviewer around Rittershoffen site are extracted.

Data on the petrophysical properties of samples from geothermal wells at the Soultz-sous-Forêts site. These data have been collected by Professor Michael J. Heap from numerous articles. The data parameters are the following: Column 1: Lithostratigraphic unit Column 2: Formation Column 3: True vertical depth (m) Column 4: Box number Column 5: Direction (perp if not given) Column 6: Natural fracture Column 7: Connected porosity Column 8: Dry P-wave velocity (km/s) Column 9: Wet P-wave velocity (km/s) Column 10: Permeability (m2) Column 11: Sample condition for UCS Column 12: Young’s modulus (GPa) Column 13: Uniaxial compressive strength (MPa) Column 14: Reference

GNSS data are recorded near Soultz-sous-Forêts at GPK1 and GPK2 stations and are provided by the operator GEIE EMC. Data format is Rinex. The stations are described (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/GNSS-Stations). See : https://cdgp.u-strasbg.fr/Obsnef-Gnss/situation.php for stations location and data availability

Microseismic catalogue recorded by the EOPGS surface network and the downhole network at Soultz-sous-Forêts during the 1993 episode. The catalogue is part John Helm's thesis : The natural seismic hazard and induced seismicity of the European HDR (Hot Dry Rock) geothermal energy project at Soultz-sous-Forêts (Bas-Rhin, France), Appendix V. The events of the catalogue cover the 1st stimulation test, the 2nd packer test and the 2nd stimulation test of the 1993 episode. Number of events: 96. Time period: 07/09/1993 18:08:32 - 16/10/1993 19:56:43. The data parameters used are the following: Column 1: Seismic ID Column 2: EOPGS event number Column 3: CSMA file Column 4: CSMA event number Column 5: Date Column 6: Corrected origin time (UTC) Column 7: Easting from GPK1 wellhead * Column 8: Northing from GPK1 wellhead * Column 9: Depth from GPK1 wellhead * Column 10: Latitude WGS84 ** Column 11: Longitude WGS84 ** Column 12: Elevation WGS84 ** Column 13: Event magnitude Column 14: Seismic moment Column 15: Source radius * The local coordinate system is based on the UTM32 system. ** Latitude, longitude and elevation have been derived from easting, northing and depth from GPK1 wellhead. The EOPGS microseismic surface network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-surface_network). The microseismic downhole network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-network). The velocity model used is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-velocity_model). Unfortunately the waveforms recorded by the surface network have been lost. Last update of data: 23/07/2019

Catalogue with hydraulic data from the article of Drif et al.(2024) at Soultz-sous-Forets 2010. For more detailed calculations, see the article Induced Seismicity Controlled by Injected Hydraulic Energy: the Case Study of the EGS Soultz-sous-Forets Site by Drif,K., Lengline, O., Kinscher, J., Schmitbuhl, J. (2024) (http://dx.doi.org/10.1029/2023JB028190) The data parameters are the following: Column 1:Time from start: 30/11/2009 23:00:00 Column 2: Time_from_start_injection: time elapsed since start of fluid injection [hours] Column 3: Mean of the depth events (whose magnitude > Mc) occurred during each hour [m] Column 4: Cumulative injected volume in [m3] Column 5: Cumulative hydraulic energy in [J] Column 6: Cumulative seismic moment (events whose magnitude > Mc) in [N.m] Column 7: The seismic moment associated to the largest event (whose magnitude > Mc) occurred to date in [N.m] Column 8: Cumulative radiated seismic energy (events whose magnitude > Mc) in [J] Column 9: Seismic Injection Efficiency defined as the ratio between Er_cum and W_hyd_cum Column 10: Cumulative seismic faulting energy (events whose magnitude > Mc) in [J] Column 11: Seismic faulting efficiency definied as the ratio between W_fault_cum and W_hyd_cum Last update of data: 07/05/2024

The surface network during the 1993 episode consisted of 14 stations. Three of them were permanent seismic stations, since removed. Eight of them were temporary 1-component seismometers. The station 1 was moved two times and the station 3 one time during the episode to improve azimuthal coverage. At least, three temporary 3-component seismometers were installed at four different sites. The surface network was installed by EOPGS (Ecole et Observatoire de Physique du Globe de Strasbourg).166 events were detected with the network. The catalogue of seismicity associated is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-catalogue_Helm). Unfortunately the waveforms have not been recovered. Last update of data: 07/03/2018

Microseismic catalogue with seismic moment and moment magnitude from Drif et al.(2024) at Soultz-sous-Forets 1995. For more details, see the article Induced Seismicity Controlled by Injected Hydraulic Energy: the Case Study of the EGS Soultz-sous-Forets Site by Drif,K., Lengline, O., Kinscher, J., Schmitbuhl, J. (2024) (http://dx.doi.org/10.1029/2023JB028190) This catalog is based on the Microseismic catalogue with moment magnitude of the downhole network from CSMA - Soultz-sous-Forets 1995 Stimulation and Hydraulic Tests (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1995-Catalogue). Columns 1,2,3,4,5,6 come from the catalog Microseismic catalogue with moment magnitude of the downhole network from CSMA - Soultz-sous-Forets 1995 Stimulation and Hydraulic Tests The data parameters are the following: Column 1: Date (UTC) Column 2: Time (UTC) Column 3: Latitude (°) Column 4: Longitude (°) Column 5: Depth from GPK1 wellhead (m) Column 6: Moment magnitude CSMA Column 7: Seismic moment Column 8: Moment magnitude Last update of data: 07/05/2024

Velocity model described in J. Helm thesis (p.127) according to Beauce et al. (1991). The velocity model was used to calculate location of microseismic events from the surface network during 1993 stimulation. The catalogue of events located during 1993 stimulation using the surface network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-catalogue_Helm). Last update of data: 26/07/2019

Velocity model and station corrections described in the PhD thesis of <b>N. Cuenot</b>, used to calculate location of microseismic events of his first catalogue of the 2000 stimulation episode at Soultz-sous-Forêts. N. Cuenot performed preliminary locations during his PhD using a modified version of the HYPOINVERSE program (Klein, 1978). An initial velocity model established by Darnet (2000) was first used but did not give satisfactory results. The velocity model was thus refined. P waves velocities were iteratively calculated by minimizing residual errors at the stations. The ratio Vp/Vs was similarly adjusted in the sedimentary layers. At least, station corrections were used to get hypocenters as precise as possible. The first catalogue of events of the 2000 episode calculated by N. Cuenot using the HYPOINVERSE program is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-catalogue). Last update of data: 26/11/2018