@article{FischerHrubcovaDahmetal.2022,
  author    = {Fischer, Tom{\´a}š and Hrubcova, Pavla and Dahm, Torsten and Woith, Heiko and Vylita, Tom{\´a}š and Ohrnberger, Matthias and Vlček, Josef and Horalek, Josef and Dedecek, Petr and Zimmer, Martin and Lipus, Martin P. and Pierdominici, Simona and Kallmeyer, Jens and Kr{\"u}ger, Frank and Hannemann, Katrin and Korn, Michael and Kaempf, Horst and Reinsch, Thomas and Klicpera, Jakub and Vollmer, Daniel and Daskalopoulou, Kyriaki},
  title     = {ICDP drilling of the Eger Rift observatory},
  series = {Scientific drilling : reports on deep earth sampling and monitoring},
  volume    = {31},
  journal   = {Scientific drilling : reports on deep earth sampling and monitoring},
  publisher = {Copernicus},
  address   = {G{\"o}ttingen},
  issn      = {1816-8957},
  doi       = {10.5194/sd-31-31-2022},
  pages     = {31 -- 49},
  year      = {2022},
  abstract  = {The new in situ geodynamic laboratory established in the framework of the ICDP Eger project aims to develop the most modern, comprehensive, multiparameter laboratory at depth for studying earthquake swarms, crustal fluid flow, mantle-derived CO2 and helium degassing, and processes of the deep biosphere. In order to reach a new level of high-frequency, near-source and multiparameter observation of earthquake swarms and related phenomena, such a laboratory comprises a set of shallow boreholes with high-frequency 3-D seismic arrays as well as modern continuous real-time fluid monitoring at depth and the study of the deep biosphere. This laboratory is located in the western part of the Eger Rift at the border of the Czech Republic and Germany (in the West Bohemia-Vogtland geodynamic region) and comprises a set of five boreholes around the seismoactive zone. To date, all monitoring boreholes have been drilled. This includes the seismic monitoring boreholes S1, S2 and S3 in the crystalline units north and east of the major Nov{\´y} Kostel seismogenic zone, borehole F3 in the Hartoušov mofette field and borehole S4 in the newly discovered Bažina maar near Lib{\´a}. Supplementary borehole P1 is being prepared in the Neualbenreuth maar for paleoclimate and biological research. At each of these sites, a borehole broadband seismometer will be installed, and sites S1, S2 and S3 will also host a 3-D seismic array composed of a vertical geophone chain and surface seismic array. Seismic instrumenting has been completed in the S1 borehole and is in preparation in the remaining four monitoring boreholes. The continuous fluid monitoring site of Hartoušov includes three boreholes, F1, F2 and F3, and a pilot monitoring phase is underway. The laboratory also enables one to analyze microbial activity at CO2 mofettes and maar structures in the context of changes in habitats. The drillings into the maar volcanoes contribute to a better understanding of the Quaternary paleoclimate and volcanic activity.},
  language  = {en}
}
@article{RoesslerRumpkerKrueger2004,
  author    = {R{\"o}ßler, Dirk and Rumpker, Georg and Kr{\"u}ger, Frank},
  title     = {Ambiguous moment tensors and radiation patterns in anisotropic media with applications to the modeling of earthquake mechanisms in W-Bohemia},
  issn      = {0039-3169},
  year      = {2004},
  abstract  = {Anisotropic material properties are usually neglected during inversions for source parameters of earthquakes. In general anisotropic media, however, moment tensors for pure-shear sources can exhibit significant non-double-couple components. Such effects may be erroneously interpreted as an indication for volumetric changes at the source. Here we investigate effects of anisotropy on seismic moment tensors and radiation patterns for pure-shear and tensile-type sources. Anisotropy can significantly influence the interpretation of the source mechanisms. For example, the orientation of the slip within the fault plane may affect the total seismic moment. Also, moment tensors due to pure- shear and tensile faulting can have similar characteristics depending on the orientation of the elastic tensor. Furthermore, the tensile nature of an earthquake can be obscured by near-source anisotropic properties. As an application, we consider effects of inhomogeneous anisotropic properties on the seismic moment tensor and the radiation patterns of a selected type of micro-earthquakes observed in W-Bohemia. The combined effects of near-source and along- path anisotropy cause characteristic amplitude distortions of the P, S1 and S2 waves. However, the modeling suggests that neither homogeneous nor inhomogeneous anisotropic properties alone can explain the observed large non-double-couple components. The results also indicate that a correct analysis of the source mechanism, in principle, is achievable by application of anisotropic moment tensor inversion},
  language  = {en}
}
@article{WeberWicksKruegeretal.2000,
  author    = {Weber, Michael H. and Wicks, Chuck and Kr{\"u}ger, Frank and Jahnke, Gunnar and Baumann, M.},
  title     = {Reply to comment on "Asymmetric radiation of seismic waves from an atoll : Nuclear tests in French Polynesia" by A. Douglas},
  year      = {2000},
  language  = {en}
}
@article{KruegerDahm1999,
  author    = {Kr{\"u}ger, Frank and Dahm, Torsten},
  title     = {Higher degree moment inversin using far-field broad-band recordings : theory and evaluation of the method with application to the 1994 Bolivia deep earthauke},
  year      = {1999},
  language  = {en}
}
@article{BrechnerKlingeKruegeretal.1998,
  author    = {Brechner, Stefan and Klinge, Klaus and Kr{\"u}ger, Frank and Plenefisch, Thomas},
  title     = {Backazimuthal variations of splitting parameters of teleseismic SKS phases observed at the broadband stations in Germany},
  year      = {1998},
  language  = {en}
}
@article{WeberWicksKruegeretal.1998,
  author    = {Weber, Michael H. and Wicks, Chuck and Kr{\"u}ger, Frank and Jahnke, Gunnar and Schlittenhardt, J{\"o}rg},
  title     = {Asymmetric radiation of seismic waves from an atoll : nuclear tests in French Polynesia},
  year      = {1998},
  language  = {en}
}
@article{KruegerGrosserBaumbachetal.1998,
  author    = {Kr{\"u}ger, Frank and Grosser, H. and Baumbach, M. and Berckhemer, Hans},
  title     = {The Erzincan (Turkey) earthquake (Ms 6.8) of March 13, 1992 and its aftershock sequence},
  year      = {1998},
  language  = {en}
}
@article{ScherbaumKruegerWeber1997,
  author    = {Scherbaum, Frank and Kr{\"u}ger, Frank and Weber, Michael H.},
  title     = {Double beam imaging : mapping lower mantle heterogeneities using combinations of source and receiver arrays},
  year      = {1997},
  language  = {en}
}
@article{FreybourgerKruegerAchauer1999,
  author    = {Freybourger, Marion and Kr{\"u}ger, Frank and Achauer, Ulrich},
  title     = {A 22 degree long seismic profile for the study of the top D"},
  year      = {1999},
  language  = {en}
}
@article{FriedrichKruegerKlinge1998,
  author    = {Friedrich, Andree and Kr{\"u}ger, Frank and Klinge, Klaus},
  title     = {Ocean generated microseismic noise located with the Graefenberg array},
  year      = {1998},
  language  = {en}
}