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oai:doidb.wdc-terra.org:66272019-05-08T01:45:15ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.4.2.2019.001 Kwiatek, Grzegorz Grzegorz Kwiatek 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University, Berlin, Germany Saarno, Tero Tero Saarno St1 Deep Heat Oy, Helsinki, Finland Ader, Thomas Thomas Ader 55190984200 ARUP Risk and Hazard Management Department, London, United Kingdom Bluemle, Felix Felix Bluemle GFZ German Research Centre for Geosciences, Potsdam, Germany Bohnhoff, Marco Marco Bohnhoff 0000-0001-7383-635X GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University, Berlin, Germany Chendorain, Michael Michael Chendorain 6506009402 ARUP, Risk and Hazard Management Department, London, United Kingdom Dresen, Georg Georg Dresen 6701789946 GFZ German Research Centre for Geosciences, Potsdam, Germany; University of Potsdam, Potsdam, Germany Heikkinen, Pekka Pekka Heikkinen 7003569185 St1 Deep Heat Oy, Helsinki, Finland; University of Helsinki, Helsinki, Finland Kukkonen, Ilmo Ilmo Kukkonen 7003713931 University of Helsinki, Helsinki, Finland Leary, Peter Peter Leary 7004933656 ASIR Seismic, Carbondale, Colorado, United States Leonhardt, Maria Maria Leonhardt 57194769372 GFZ German Research Centre for Geosciences, Potsdam, Germany Malin, Peter Peter Malin 7004503806 ASIR Seismic, Carbondale, Colorado, United States Martinez-Garzon, Patricia Patricia Martinez-Garzon 0000-0003-4649-0386 GFZ German Research Centre for Geosciences, Potsdam, Germany Passmore, Kevin Kevin Passmore ASIR Seismic, Carbondale, Colorado, United States Passmore, Paul Paul Passmore ASIR Seismic, Carbondale, Colorado, United States Valenzuela, Sergio Sergio Valenzuela ASIR Seismic, Carbondale, Colorado, United States Wollin, Christopher Christopher Wollin 0000-0002-3992-787X GFZ German Research Centre for Geosciences, Potsdam, Germany Source parameters of relocated earthquakes recorded during hydraulic stimulation within St1 Deep Heat project in Espoo, Finland GFZ Data Services 2019 induced seismicity earthquake hypocenters magnitude enhanced geothermal systems EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > SEISMIC PROFILE > SEISMIC BODY WAVES EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE OCCURRENCES EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE MAGNITUDE/INTENSITY Kwiatek, Grzegorz Grzegorz Kwiatek 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University, Berlin, Germany Kwiatek, Grzegorz Grzegorz Kwiatek 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University, Berlin, Germany Kwiatek, Grzegorz Grzegorz Kwiatek 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University, Berlin, Germany Saarno, Tero Tero Saarno St1 Deep Heat Oy, Helsinki, Finland Leary, Peter Peter Leary 7004933656 ASIR Seismic, Carbondale, Colorado, United States Malin, Peter Peter Malin 7004503806 ASIR Seismic, Carbondale, Colorado, United States Passmore, Kevin Kevin Passmore ASIR Seismic, Carbondale, Colorado, United States Passmore, Paul Paul Passmore ASIR Seismic, Carbondale, Colorado, United States 2018-06-04/2018-08-02 2019-01-31 2018-06-04T09:00:00/2018-07-24T23:59:59 en 10.1016/0040-1951(96)00054-6 10.1126/sciadv.aav7224 2 Files application/octet-stream application/octet-stream 1.0 CC BY-SA 4.0 The dataset is supplementary material to Kwiatek et al. (2019, Science Advances). The dataset is a refined seismic catalog acquired during the hydraulic stimulation of the future geothermal sites located in Espoo, Finland. There, the injection well, OTN-3, was drilled down to 6.1 km-depth into Precambrian crystalline rocks. Well OTN-3 was deviated 45° from vertical and an open hole section at the bottom was divided into several injection intervals. A total of 18,159 m3 of fresh water was pumped into crystal-line rocks during 49 days in June- and July, 2018. The stimulation was monitored in near-real time using (1) a 12-level seismometer array at 2.20-2.65 km depth in an observation well located ~10 m from OTN3 and (2) a 12-station network installed in 0.3-1.15 km deep bore-holes surrounding the project site. On completion of stimulation it the catalog contained 8452 event detections overall, and 6152 confirmed earthquakes located in the vicinity of the project site (epicentral distance from the well head of OTN-3 <5 km). These were recorded in a time period lasting 59 days: 49 days of active stimulation campaign and the 10 days following completion. The initial industrial seismic catalog of 6150 earthquakes was manually reprocessed. The P- and S-wave arrivals of larger seismic events with M>0.5 were all manually verified, and, if necessary, refined. Earthquakes with sufficient number of phases and seemingly anomalous hypocenter depths (e.g. very shallow or very deep) were manually revised as well. The hypocenter locations were calculated using the Equivalent differential time method and optimized with an Adaptive Simulated Annealing algorithm. The updated catalog contained 4,580 earthquakes that occurred at hypocenter depths 4.5-7.0 km, in the vicinity of the stimulation section of OTN-3. To increase the precision of their locations, the selected 2155 earthquakes with at least 10 P-wave and 4 S-wave picks were relocated using the double-difference relocation technique. The relocation uncertainties were estimated using bootstrap resampling technique. The relocation reduced the relative precision of hypocenter determination to approx. 66 m and 27 m for 95% and 68% of relocated earthquakes. The final relocated catalog that constitutes the here published contained 1,977 earthquakes (91% of the originally selected events). 24.646064518019557 25.048438785597682 60.13590068578315 60.28191359126646 St1 Deep Heat project area Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 KW 84/4-1 Impact of seismic source processes on ground motion variability of induced earthquakes in geothermal reservoirs, mines and laboratory experiments