2018/09/25 by L. Küperkoch, Kai Olbert, Thomas Meier · 1 citation
Earth and Planetary Sciences · #Geology #Geophysics #Geothermal gradient #High-pressure geophysics and materials #Miller #Physics #Seismic Waves and Analysis #earthquake and tectonic studies
paper · doi:10.1785/0120170365
openalex publication_date 2018/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
Research Article| September 25, 2018 Long‐Term Monitoring of Induced Seismicity at the Insheim Geothermal Site, Germany L. Küperkoch; L. Küperkoch aBESTEC GmbH Landau, Oskar‐von‐Miller‐Straße 2, D‐76829 Landau, Germany, [email protected] Search for other works by this author on: GSW Google Scholar K. Olbert; K. Olbert bInstitute of Geophysics, Christian‐Albrechts‐University Kiel, D‐24118 Kiel, Germany, [email protected]@ifg.uni-kiel.decAlso at Institute of Geosciences, University of Kiel, Otto‐Hahn‐Platz 1, 24118 Kiel, Germany. Search for other works by this author on: GSW Google Scholar T. Meier T. Meier bInstitute of Geophysics, Christian‐Albrechts‐University Kiel, D‐24118 Kiel, Germany, [email protected]@ifg.uni-kiel.decAlso at Institute of Geosciences, University of Kiel, Otto‐Hahn‐Platz 1, 24118 Kiel, Germany. Search for other works by this author on: GSW Google Scholar Author and Article Information L. Küperkoch aBESTEC GmbH Landau, Oskar‐von‐Miller‐Straße 2, D‐76829 Landau, Germany, [email protected] K. Olbert bInstitute of Geophysics, Christian‐Albrechts‐University Kiel, D‐24118 Kiel, Germany, [email protected]@ifg.uni-kiel.decAlso at Institute of Geosciences, University of Kiel, Otto‐Hahn‐Platz 1, 24118 Kiel, Germany. T. Meier bInstitute of Geophysics, Christian‐Albrechts‐University Kiel, D‐24118 Kiel, Germany, [email protected]@ifg.uni-kiel.decAlso at Institute of Geosciences, University of Kiel, Otto‐Hahn‐Platz 1, 24118 Kiel, Germany. Publisher: Seismological Society of America First Online: 25 Sep 2018 Online Issn: 1943-3573 Print Issn: 0037-1106 © Seismological Society of America Bulletin of the Seismological Society of America (2018) 108 (6): 3668–3683. https://doi.org/10.1785/0120170365 Article history First Online: 25 Sep 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation L. Küperkoch, K. Olbert, T. Meier; Long‐Term Monitoring of Induced Seismicity at the Insheim Geothermal Site, Germany. Bulletin of the Seismological Society of America 2018;; 108 (6): 3668–3683. doi: https://doi.org/10.1785/0120170365 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Induced seismicity associated with the geothermal power plant at Insheim (Germany) has been continuously analyzed using a combination of permanent and temporary stations since 2012 over a time span of more than 4 yrs. More than 600 induced events have been detected and located. The largest event had a magnitude of ML≈2.4. Accurate locations are crucial for understanding the behavior of the reservoir. An initial velocity model derived from vertical seismic profiling (VSP) turned out not to be appropriate for the location of induced events. Location uncertainty was reduced by probabilistic earthquake locations using an optimized minimum 1D velocity model. Resolution was further increased by relative relocation based on differential travel times obtained from absolute P‐ and S‐phase onset readings, as well as from waveform cross correlations. The initial absolute location errors decreased from 500 m horizontally and ≈1000 m vertically to ≈300 and ≈500 m, respectively. Clusters of similar events were detected by waveform cross correlation. The average difference in the relative locations between highly similar events amounts to about 50 m, yielding independent support for the relative location error estimate. Most of the events occur along a fault zone in the basement connecting the injection and the production wells. Interestingly, one cluster including the largest event occurred close to the production well. In addition, locations of induced events hint at the activation of formerly unknown conjugated fault zones. Derived fault‐plane solutions of selected induced events confirm this interpretation and agree well with the regional stress regime. The seismically activated volume increased within 1 yr to its final volume of ≈1.65×109 m3 and remained more or less constant. Seismic activity correlates strongly with injection rates and increases in case of unexpected shut‐ins. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.