Surface seismic network used to study the Geoven Episode. The network consists of stations from several networks: Resif (https://www.resif.fr/) (FDSN code: FR), the French seismic network composed of high gain seismometers and accelerometers, French Accelerometric Network (FDSN code: RA), LRGB network (FDSN code: LE), the German network for Baden-Wuerttemberg, RaspberryShake network (FDSN code: AM) financed by the BCSF-Renass and the LabEx G-eau-thermie Profonde. Public stations from Fonroche network (ECK4 and VDH4) are included in the FR network. Data are automatically computed at request time

VDH-GT2 is the second well drilled within the framework of the geothermal project Geoven at Vendenheim. The well was drilled from August 2018 to February 2019 to 5308 m (4417m TVD), and prolongated between November 2019 and February 2020 to 6312m (5011m TVD). VDH-GT2 will be used as injection well. Location of the VDH-GT2 wellhead (in WGS84): Latitude: 48.66166457° Longitude: 7.77362583° Altitude: 134m At the present time, the Geoven project (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/VDHD) is still in development and this description may change.

Seismological signals acquired at Vendenheim during the development phase of the GEOVEN geothermal project. Waveforms from the permanent stations described in VDHD-Surface_network (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/VDHD-Surface_network) are provided for each event from VDHD-Catalogue (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/VDHD-Catalogue), (-30s, +90s). Data are automatically computed at request time

Geoven (http://www.geoven.fr) was a geothermal power plant project initially managed by Fonroche Géothermie, later taken over by Arverne (https://arverne.earth/wp-content/uploads/2023/02/Communique_Presse_Georhin_130223.pdf). Located at the Ecoparc Rhénan site in Vendenheim, north of Strasbourg, the project aimed to generate 6 MW of electrical energy and 40 MW of thermal energy. It relied on two deep wells to extract hot water and reinject it at depths exceeding 4,000 meters. The two wells VDH-GT1 and VDH-GT2 had been drilled and some tests had been conducted (5 injectivity and productivity cycles between 02/2018 and 11/2019). A first interruption occured after a first period of seismicity (11/2019 – 01/2020, MLv=3.0 max) at Strasbourg and Vendenheim, to allow a third-party scientific expertise. During this period, the well was deepened of 450m to reach 5000m. New tests were authorized starting 10/2020, but were stopped on 28/10/2020 after a new period of seismicity with quake reaching 3.6MLv (04/12/2020). Authority decided on 07/12/2020 to definitely stop the project. Another earthquake of 3.9 ML (https://www.franceseisme.fr/donnees/intensites/2021/210626_0300/Rapport_BCSF-RENASS_2021R1_EVT210626-DPT67.pdf) occured on 26/06/2021. Authorities set up a committee of experts that delivered a first report (https://www.bas-rhin.gouv.fr/Politiques-publiques/Environnement/Geothermie/Rapport-du-comite-d-experts-cree-en-appui-a-l-administration-sur-la-boucle-geothermique-GEOVEN). The Episode contains several datasets which you can find further down the page in "Links".

Geoven is a geothermal project initially managed by Fonroche Géothermie, then taken over by Arverne (https://arverne.earth/wp-content/uploads/2023/02/Communique_Presse_Georhin_130223.pdf). This project targets a deep reservoir (around 5km) close to a regional fault. Two wells were drilled, GT1 and GT2. From April to November 2019, several stimulation operations were carried out on the 2 wells GT1 and GT2. A first interruption took place after an initial period of seismicity (11/2019 - 01/2020, MLv=3.0 max) in Strasbourg and Vendenheim. Some of the data have been extrapolated from the Figures presented in the expert report, publicly available here: https://www.bas-rhin.gouv.fr/contenu/telechargement/47764/305601/file/Rapport%20du%20Comit%C3%A9_version%20int%C3%A9grale.pdf The Episode contains several datasets which you can find further down the page in "Links".

During the interruption, at the end of 2019, the GT2 well was deepened. The tests were authorized in September 2020, and new tests were carried out. These tests were stopped on 28/10/2020 after a new period of seismicity with an event of magnitude 2.8 Mlv on October 28, and 3.6 Mlv on December 4, 2020. Some of the data have been extrapolated from the Figures presented in the expert report, publicly available here: https://www.bas-rhin.gouv.fr/contenu/telechargement/47764/305601/file/Rapport%20du%20Comit%C3%A9_version%20int%C3%A9grale.pdf The Episode contains several datasets which you can find further down the page in "Links".

Catalogue of microseismicity with magnitude recorded during the Geoven project at Vendenheim, calculated by the BCSF-Rénass (https://renass.unistra.fr/). The geographic extent of the catalogue is a square with sides of about 12 km approximately centered on the middle between the extremity of the two wells VDH-GT1 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/VDH-GT1) and VDH-GT2 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/VDH-GT2). Time period: 17/12/2016 - today. The data parameters are the following: Column 1: Seismic ID Column 2: Date and time (UTC) Column 3: Latitude Column 4: Longitude Column 5: Magnitude Column 6: Type of magnitude Column 7: Depth (km) Column 8: Type of depth Column 9: Catalogue Column 10: Evaluation mode Column 11: Number of stations used Column 12: Number of phases Column 13: Azimutal gap Column 14: Significant city Column 15: Distance of the city (km) Column 16: Type of event Remarks: The catalogue is automatically computed at request time. Not all the events of the requested catalogue are induced by geothermal activities. The induced events are referred as "induced or triggered event" in the column 16 of the catalogue.