2024-03-28T18:18:40Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:66272019-05-08T01:45:15ZDOIDBDOIDB.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