GENERAL INFORMATION 1. Title of Dataset: Catalog of locations of microseismic events accompanying the 2006-2007 fluid injection into the Basel Enhanced Geothermal System 2. Author Information A. Principal Investigator Contact Information Name: Yusuke Mukuhira Institution: Institute of Fluid Science, Tohoku University Address: 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Email: mukuhira@tohoku.ac.jp, yusuke.mukuhira@gmail.com B. Associate or Co-investigator Contact Information Name: Michael Fehler Institution: Massachusetts Institute of Technology Address: 77 Massachusetts Ave.; Cambridge MA 02139 Email: fehler@mit.edu C. Alternate Contact Information Name: Hiroshi Asanuma Institution: Fukushima Renewable Energy Institute, AIST (FREA) Address: 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, Japan Email: h.asanuma@aist.go.jp 3. Date of data collection (single date, range, approximate date) : 2006-12-03 to 2007-06-07 4. Geographic location of data collection : Basel, Switzerland Approx 47.55° N, 7.58° E 5. Information about funding sources that supported the collection of the data: Japan Society for Promotion of Science Earth Resources Laboratory; Massachusetts Institute of Technology SHARING/ACCESS INFORMATION 1. Licenses/restrictions placed on the data: License: CC-BY (https://creativecommons.org/licenses/by/4.0/). Please attribute using citation provided in number 6 below. 2. Links to publications that cite or use the data: ADDITIONAL link available when our paper is published Hiroshi Asanuma, Yusuke Kumano, Hirokazu Moriya, Hiroaki Niitsuma, Ulrich Schanz, and Markus Häring, (2008), "Identification of microseismic multiplets in the frequency domain and interpretation of reservoir structure at Basel, Switzerland," SEG Technical Program Expanded Abstracts: 1451-1455.https://doi.org/10.1190/1.3059187 Many studies use the data. Here, we list some of them Yusuke Mukuhira, Hiroshi Asanuma, Hiroaki Niitsuma, Markus O. Häring, (2013), Characteristics of large-magnitude microseismic events recorded during and after stimulation of a geothermal reservoir at Basel, Switzerland. Geothermics 45, 1–17. https://doi.org/10.1016/j.geothermics.2012.07.005 Yusuke Mukuhira, Carsten Dinske, Hiroshi Asanuma, Takatoshi Ito,Markus O. Häring, (2017), Pore pressure behavior at the shut-in phase and causality of large induced seismicity at Basel, Switzerland. J. Geophys. Res. Solid Earth 122, 411–435. https://doi.org/10.1002/2016JB013338 Yusuke Mukuhira, Hirokazu Moriya, Takatoshi Ito, Hiroshi Asanuma, Häring, Markus O. Häring, (2017), Pore pressure migration during hydraulic stimulation due to permeability enhancement by low-pressure subcritical fracture slip. Geophys. Res. Lett. 44, 3109–3118. https://doi.org/10.1002/2017GL072809 3. Links to other publicly accessible locations of the data: N/A 4. Links/relationships to ancillary data sets: We know of no other open datasets that link to this one. 5. Was data derived from another source? no 6. Recommended citation for this dataset: Mukuhira, Y., M. Fehler, T. Ito, H. Asanuma, and M. Haring, Catalog of micro earthquake data used for paper titled Injection induced seismicity size distribution dependent on shear stress, We will add rest of citation when article is published DATA & FILE OVERVIEW 1. File List: ds01_col.csv 2. Relationship between files, if important: N/A 3. Additional related data collected that was not included in the current data package: N/A 4. Are there multiple versions of the dataset? yes/no NO METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: Raw seismic trace data were recorded during the hydraulic injection. Initial event locations were determined by Asanuma et al. (2008a) who also determined the event magnitudes. Clustering was done by Asanuma et al (2008b) by evaluating in the frequency domain the similarity of waveforms of closely spaced events. References: Hiroshi Asanuma, Yusuke Kumano, Hiroaki Niitsuma, Urich Schanz, & Markus O. Häring, (2008a), Interpretation of Reservoir Structure from Super-Resolution Mapping of Microseismic Multiplets from Stimulation at Basel, Switzerland in 2006. In GRC Transactions. Hiroshi Asanuma, Yusuke Kumano, Hirokazu Moriya, Hiroaki Niitsuma, Ulrich Schanz, &. Markus O Häring, (2008b), Identification of microseismic multiplets in the frequency domain and interpretation of reservoir structure at Basel, Switzerland, SEG Technical Program Expanded Abstracts: 1451-1455.https://doi.org/10.1190/1.3059187 https://www.researchgate.net/publication/237523388_Identification_of_microseismic_multiplets_in_the_frequency_domain_and_interpretation_of_reservoir_structure_at_Basel_Switzerland (Researchgate link, last accessed 2021 Jan. 20) 2. Methods for processing the data: Please see 1. above. 3. Instrument- or software-specific information needed to interpret the data: none 4. Standards and calibration information, if appropriate: Reliability of locations and magnitudes are discussed in the paper by Asanuma et al. (2008a) mentioned above. 5. Environmental/experimental conditions: N/A 6. Describe any quality-assurance procedures performed on the data: Reliability of locations and magnitudes are discussed in the paper by Asanuma et al. (2008a) mentioned above. Reliability of clustering is described in Asanuma et al (2008b) mentioned above. 7. People involved with sample collection, processing, analysis and/or submission: Geophysical group, Tohoku University Japan led by Prof. Asanuma joined the Basel project as a third party analysis group. Microsesimic data and relevant information were provided to Tohoku University group by the main operator. DATA-SPECIFIC INFORMATION FOR: ds01_col.csv Description: Supplement data to Mukuhira et al. (under review): Injection induced seismicity size distribution dependent on shear stress submitted to Geophysical Research Letters. This dataset contains the catalog of locations of microseismic events occurring in 2006-2007 that accompanied the fluid stimulation into the Basel Enhanced Geothermal System (EGS). The catalog includes event ID, occurrence date and time (trigger time), location, cluster ID and moment magnitude. The 1st column is the header line to explain data and units. The catalog was made using the multiplet analysis method by Asanuma et al., 2008 (Society of Exploration Geophysicists expanded abstract). For details, please see that paper. Cluster ID 0 means non multiplet event (single event). This is the result of multiplet analysis performed using 40-97 Hz frequency band of waveforms. Hiroshi Asanuma, Yusuke Kumano, Hirokazu Moriya, Hiroaki Niitsuma, Ulrich Schanz, &. Markus O Häring, (2008b), Identification of microseismic multiplets in the frequency domain and interpretation of reservoir structure at Basel, Switzerland, SEG Technical Program Expanded Abstracts: 1451-1455.https://doi.org/10.1190/1.3059187 1. Number of variables: 8 2. Number of cases/rows: 2849 3. Variable List: TohokuID: Unique ID number assigned to each event by Took University Date: An 8-digit integer describing date of event occurrence. Integer is composed of 3 elements giving year(4 digits), Month(2 digits), day(2 digits) Time: An 6-digit integer describing time of event occurrence. Integer is composed of 6 digits giving hour(2 digits), minute(2 digits) and second (2 digits). Easting (m): East coordinate of the event in meters Northing (m): North coordinate of event in meters Depth (m): Depth of event in meters below sea level Note: We used the project original coordinate system. One can convert our coordinate to a more general coordinate as follows. Add 600,000 to X coordinate, and add 260,000 to Y coordinate. This converts our coordinate to Swiss coordinates LV03, Military Format. One can also convert Swiss coordinates to WGS84. Please see following website. https://www.swisstopo.admin.ch/en/maps-data-online/calculation-services/navref.html (last accessed 2021 Jan 20) Cluster ID: Cluster that event belongs to as determined by Asanuma et al. (see reference above) Mw: Moment magnitude of event determined from waveform amplitude at the deepest station. Details can be found in the following papers. Dyer, B.C., Schanz, U., Spillmann, T., Ladner, F., Häring, M.O., 2010. Application of microseismic multiplet analysis to the Basel geothermal reservoir stimulation events. Geophys. Prospect. 58, 791–807. https://doi.org/10.1111/j.1365-2478.2010.00902.x Yusuke Mukuhira, Carsten Dinske, Hiroshi Asanuma, Takatoshi Ito,Markus O. Häring, (2017), Pore pressure behavior at the shut-in phase and causality of large induced seismicity at Basel, Switzerland. J. Geophys. Res. Solid Earth 122, 411–435. https://doi.org/10.1002/2016JB013338 4. Missing data codes: Cluster ID 0 mean the event does not belong to a cluster as described in DATA-SPECIFIC INFORMATION FOR: ds01_col.csv n 5. Specialized formats or other abbreviations used: none