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

In order to improve the seismic monitoring of the Soultz-sous-Forêts geothermal site, a new seismic observation well was drilled in 2000. After two months of drilling, OPS4 reached the final depth of 1537m. Location of the OPS4 wellhead (in WGS84): - Latitude: 48.92108705 | 48° 55' 15" N - Longitude: 7.88306364 | 7° 52' 59" E - Altitude: 204m

The 4550 well was an old oil well drilled in 1949-1950. It has been deepened in the framework of the Soultz-sous-Forêts project from 1050m to 1500m in 1990. A seismic probe was deployed at the bottom of the well to monitor the microseismic activity induced by the geothermal site of Soultz-sous-Forêts. Location of the 4550 wellhead (in WGS84): - Latitude: 48.93750535 | 48° 56' 15" N - Longitude: 7.86972203 | 7° 52' 10" E - Altitude: 151m

The 4616 well was an old oil well drilled in 1950-1951. The well was recovered and used as seismic observation well of the Soultz-sous-Forêts geothermal project from 1987. It has been deepened in the framework of the project to 1414m in 1990. Location of the 4616 wellhead (in Lambert coordinates): - Latitude: 48.93879707 | 48° 56' 19" N - Longitude: 7.86502087 | 7° 51' 54" E - Altitude: 155.4m

The 4601 well was an old oil well drilled in 1951. It has been deepened in the framework of the Soultz-sous-Forêts project from 1010m to 1604m. A seismic probe was deployed at the bottom of the well to monitor the microseismic activity induced by the several experiments conducted on the geothermal site of Soultz-sous-Forêts. Location of the 4601 wellhead (in WGS84): - Latitude: 48.92805654 | 48° 55' 41" N - Longitude: 7.84882476 | 7° 50' 55" E - Altitude: 169m

Microseismic catalogue with local magnitude of the 2000 episode at Soultz-sous-Forêts calculated by B. Dyer (Semore Seismic) using the surface network. Number of events: 51. Microseismic monitoring of the hydraulic programme at Soultz took place between June 30th and July 18th. The catalogue contains the 51 largest events detected on the surface network during the 2000 episode. Each event identity and location in the catalogue was assigned by correlating the times of the events on the surface network with the times of the microseismic events from the catalogue of the downhole network of B. Dyer (available https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-catalogue_downhole). Some discrepancies of few minutes for a same event between the two catalogues are possible because of the gap in time between the twok clocks on the two data acquisition systems. Some locations are missing because of insufficient picks, due to noise, or insufficient data, due to one or more sensors being inoperative. Time period: 30/06/2000 23:09 - 25/07/2000 09:06 (UTC time). The data parameters are the following: Column 1: Event number Column 2: Date (UTC) Column 3: Time (UTC) Column 4: Easting from GPK1 wellhead * Column 5: Northing from GPK1 wellhead * Column 6: Depth from GPK1 wellhead * Column 7: Latitude WGS84 ** Column 8: Longitude WGS84 ** Column 9: Elevation WGS84 ** Column 10: Local magnitude * The local coordinate system is based on the UTM32 system. ** Latitude, longitude and elevation have been derived from the local coordinate system. The description of the surface network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-surface_network). The velocity model used is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-velocity_model_downhole). Last update of data: 20/01/2022

First catalogue calculated by N. Cuenot as part of his Ph. D. The downhole network and the surface network were both used to locate events of the 2000 episode at Soultz-sous-Forêts. Number of events: 7215. The catalogue contains the preliminary locations of events performed by N. Cuenot with a modified version of the HYPOINVERSE program (Klein, 1978). N. Cuenot calculated a second catalogue with more precise locations using tomographic inversion. The catalogue covers only the stimulation test and not the post-injection test of the 2000 episode. Only the events recorded by at least 8 stations (5 from the surface network and the 3 downhole accelerometers) and with an RMS ≤ 0.02 s were kept in the catalogue. The final mean mathematical location error is about 80 m horizontally and 100 m vertically. Time period: 30/06/2000 19:15:18 - 11/07/2000 05:58:03 (UTC). The data parameters are the following: Column 1: Event number Column 2: Date (UTC) Column 3: Time (UTC) Column 4: Latitude WGS84 Column 5: Longitude WGS84 Column 6: Elevation (m) Column 7: Magnitude determined from the seismic signal duration Column 8: RMS Remark: the signals from the RéNaSS stations and the Güralp sensor of the surface network, and from the two hydrophones of the downhole network were not used to locate the events of the catalogue. The description of the surface network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-surface_network). The description of the downhole network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-downhole_network). Last update of data: 27/02/2018

Seismological signals acquired at Soultz-sous-Forêts during the 1993 stimulation. The downhole seismological network consisted of 3 accelerometers (4 components sensors) built by the CSMA (station: 4550,4601 and 4616) and one hydrophone (Station: EPS1) The records are done on a temporal window of 2s with a sample frequency of 5064Hz and a flat response up to 1000Hz. The anti-aliasing low-pass filter of Bessel (1500Hz) has been applied. The validation of data is done thanks to the 4-C sensors. The associated catalogue is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-catalogue). The description of the downhole network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-network).

Catalogue of microseismicity recorded at Soultz-sous-Forêts during 1993 stimulation by the downhole network. Calculated by the CSMA. Number of events: 10744. The data parameters are the following: Column 1: Seismic ID Column 2: Event number Column 3: Easting from GPK1 wellhead * Column 4: Northing from GPK1 wellhead * Column 5: Depth from GPK1 wellhead * Column 6: Latitude WGS84 ** Column 7: Longitude WGS84 ** Column 8: Elevation WGS84 ** Column 9: Maximum peak to peak P-wave amplitude Column 10: Maximum peak to peak S-wave amplitude Column 11: Source radius Column 12: Stress drop Column 13: Moment magnitude Column 14: Record name Column 15: Date (local) Column 16: Time (local) Column 17: Date (UTC) *** Column 18: Time (UTC) *** * 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 UTC time has been calculated from the local time. The associated waveforms are available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-seed). The description of the downhole network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-network). Last update of data: 24/09/2019

Catalogue of microseismicity recorded at Soultz-sous-Forêts during 1993 stimulation by the downhole network. This catalogue is part of Seid Bourouis Thesis: Sismicité induite et comportement mécanique d'un massif granitique fracturé par injection d'eau - Application au site géothermique de Soultz-sous-Forêts. Number of events: 15534. The data parameters used are the following: Column 1: Seismic ID Column 2: Event number Column 3: Record name Column 4: Date Column 5: Time (local) Column 6: 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 ** * The UTC time has been calculated from the local time. ** Latitude, longitude and elevation have been derived from easting, northing and depth from GPK1 wellhead. The microseismic downhole network is available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-network). The associated waveforms are available (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1993-seed). Last update of data: 23/07/2019