Institute of Seismology, University of Helsinki, 10 to 20 Hz template matching event catalogue for the St1 Enhanced Geothermal System project in Espoo/Otaniemi from June 2018 to December 2022

Institute of Seismology, University of Helsinki, 10 to 20 Hz template matching event catalogue for the St1 Enhanced Geothermal System project in Espoo/Otaniemi from June 2018 to December 2022

Description

The energy company St1 carried out two stimulations of their planned deep geothermal wells in 2018 and in 2020. The seismicity induced by the wells situated in Otaniemi, Espoo, in the Helsinki metropolitan area, southern Finland, were monitored by the Institute of Seismology of University of Helsinki (ISUH). The events detected during the stimulations using automated routines were collected and analysed and compiled into a set of templates which were used in a template matching framework. We provide here the event catalogue produced by running the template matching from the beginning of the first stimulation in June 4th 2018 to December 31st 2022. This dataset comprises 5530 induced earthquakes, with local magnitudes ranging between -1.3 and 1.8. The dataset consists of phase picks, locations, magnitudes and waveform data of the events. The event data, event metadata, and station metadata are provided in distinct directories, and for event data, each event is assigned a subdirectory. Data formats follow generally accepted standards. Further documentation is available within the package. This dataset was produced as part of the SEISMIC RISK: Mitigation of induced seismic risk in urban environments project funded by the Research Council of Finland as a part of the Special funding for research into crisis preparedness and security of supply (8/2020-11/2023; decisions 337913, 338075, 339670).
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Year of publication

2024

Authors

Institute of Mine Seismology

George Taylor Orcid -palvelun logo - Creator

Martin Gal Orcid -palvelun logo - Creator

Toni Veikkolainen Orcid -palvelun logo - Publisher, Creator

Gregor Hillers Orcid -palvelun logo - Creator

Jari Kortström - Creator

Jennifer Hällsten - Creator

Kati Oinonen - Creator

Tommi A.T. Vuorinen Orcid -palvelun logo - Creator

Other information

Fields of science

Geosciences

Language

English

Open access

Open

License

Creative Commons Attribution 4.0 International (CC BY 4.0)

Keywords

Finland, seismology, geophysics, drillhole, EGS, enhanced geothermal system, hydraulic stimulation, seismic monitoring, seismic network, template matching

Subject headings

geothermal energy