Articles | Volume 14, issue 5
https://doi.org/10.5194/essd-14-2179-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-14-2179-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Moment tensor catalogue of earthquakes in West Bohemia from 2008 to 2018
Department of Seismology, Institute of Geophysics, Boční II/1401, 14100 Prague 4, Czech Republic
Petra Adamová
Department of Seismology, Institute of Geophysics, Boční II/1401, 14100 Prague 4, Czech Republic
Jana Doubravová
Department of Seismology, Institute of Geophysics, Boční II/1401, 14100 Prague 4, Czech Republic
Josef Horálek
Department of Seismology, Institute of Geophysics, Boční II/1401, 14100 Prague 4, Czech Republic
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Tomáš Fischer, Pavla Hrubcová, Torsten Dahm, Heiko Woith, Tomáš Vylita, Matthias Ohrnberger, Josef Vlček, Josef Horálek, Petr Dědeček, Martin Zimmer, Martin P. Lipus, Simona Pierdominici, Jens Kallmeyer, Frank Krüger, Katrin Hannemann, Michael Korn, Horst Kämpf, Thomas Reinsch, Jakub Klicpera, Daniel Vollmer, and Kyriaki Daskalopoulou
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The newly established geodynamic laboratory aims to develop modern, comprehensive, multiparameter observations at depth for studying earthquake swarms, crustal fluid flow, mantle-derived fluid degassing and processes of the deep biosphere. It is located in the West Bohemia–Vogtland (western Eger Rift) geodynamic region and comprises a set of five shallow boreholes with high-frequency 3-D seismic arrays as well as continuous real-time fluid monitoring at depth and the study of the deep biosphere.
Cited articles
Bachura, M. and Fischer, T.: Detailed velocity ratio mapping during the
aftershock sequence as a tool to monitor the fluid activity within the fault
plane, Geophys. J. Int., 453, 215–222, https://doi.org/10.1016/j.epsl.2016.08.017, 2016.
Bachura, M., Fischer, T., Doubravová, J., and Horálek, J.: From
earthquake swarm to a main shock-aftershocks: the 2018 activity in West
Bohemia/Vogtland, Geophys. J. Int., 224, 1835–1848, 2021.
Bankwitz, P., Schneider, G., Kämpf, H., and Bankwitz, E.: Structural
characteristics of epicentral areas in Central Europe: study case Cheb Basin
(Czech Republic), J. Geodyn., 35, 5–32,
https://doi.org/10.1016/S0264-3707(02)00051-0, 2003.
Bath, M.: Lateral inhomogeneities in the upper mantle, Tectonophysics, 2,
483–514, 1965.
Bouchaala, F., Vavryčuk, V., and Fischer, T.: Accuracy of the
master-event and double-difference locations: Synthetic tests and
application to seismicity in West Bohemia, Czech Republic, J. Seismol.,
17, 841–859, https://doi.org/10.1007/s10950-013-9357-4, 2013.
Bräuer, K., Kämpf, H., Niedermann, S., and Strauch, G.: Monitoring
of helium and carbon isotopes in the western Eger Rift area (Czech
Republic): Relationships with the 2014 seismic activity and indications for
recent (2000–2016) magmatic unrest, Chem. Geol., 482, 131–145,
https://doi.org/10.1016/j.chemgeo.2018.02.017, 2018.
Čermáková, H. and Horálek, J.: The 2011 West Bohemia
(Central Europe) earthquake swarm compared with the previous swarms of 2000
and 2008, J. Seismol., 19, 899–913,
https://doi.org/10.1007/s10950-015-9502-3, 2015.
Červený, V.: Seismic Ray Theory, Cambridge University Press,
Cambridge, https://doi.org/10.1017/CBO9780511529399,, 2001.
Cesca, S. and Dahm, T.: A frequency domain inversion code to retrieve
time-dependent parameters of very long period volcanic sources, Comput.
Geosci., 34, 235–246, 2008.
Cesca, S., Buforn, E., and Dahm, T.: Amplitude spectra moment tensor
inversion of shallow earthquakes in Spain, Geophys. J. Int., 166, 839–854,
2006.
Dahm, T. and Fischer, T.: Velocity ratio variations in the source region of
earthquake swarms in NW Bohemia obtained from arrival time double-differences, Geophys. J. Int., 196, 957–970, 2014.
Davi, R. and Vavryčuk, V.: Seismic network calibration for retrieving
accurate moment tensors, B. Seismol. Soc. Am., 102, 2491–2506,
https://doi.org/10.1785/0120110344, 2012.
Davi, R., Vavryčuk, V., Charalampidou, E.-M., and Kwiatek, G.: Network
sensor calibration for retrieving accurate moment tensors of acoustic
emissions, Int. J. Rock Mech. Min., 62, 59–67,
https://doi.org/10.1016/j.ijrmms.2013.04.004, 2013.
Dreger, D. and Woods, B.: Regional distance seismic moment tensors of
nuclear explosions, Tectonophysics, 356, 139–156, 2002.
FeedMeImATroll: Suspension Bridge Picking Algorithm (SBPx),
MATLAB Central File Exchange, https://www.mathworks.com/matlabcentral/fileexchange/51996-suspension-bridge-picking-algorithm-sbpx,
last access: 21 September 2021.
Fischer, T., Horálek, J., Michálek, J., and Boušková, A.:
The 2008 West Bohemia earthquake swarm in the light of the WEBNET network,
J. Seismol., 14, 665–682, 2010.
Fischer, T., Horálek, J., Hrubcová, P., Vavryčuk, V.,
Bräuer, K., and Kämpf, H.: Intra-continental earthquake swarms in
West-Bohemia and Vogtland: a review, Tectonophysics, 611, 1–27,
https://doi.org/10.1016/j.tecto.2013.11.001, 2014.
Fojtíková, L. and Zahradník, J.: A new strategy for weak
events in sparse networks: The first-motion polarity solutions constrained
by single-station waveform inversion, Seismol. Res. Lett., 85, 1265–1274,
https://doi.org/10.1785/0220140072, 2014.
Fojtíková, L., Vavryčuk, V., Cipciar, A., and Madarás, J.:
Focal mechanisms of micro-earthquakes in the Dobrá Voda seismoactive
area in the Malé Karpaty Mts. (Little Carpathians), Slovakia,
Tectonophysics, 492, 213–229, https://doi.org/10.1016/j.tecto.2010.06.007,
2010.
Ford, S. R., Dreger, D. S., and Walter, W. R.: Network sensitivity solutions
for regional moment-tensor inversions, B. Seismol. Soc. Am., 100,
162–1970, 2010.
Frohlich, C.: Earthquakes with non-double-couple mechanisms, Science,
264, 804–809, 1994.
Hainzl, S., Fischer, T., and Dahm, T.: Seismicity-based estimation of the
driving fluid pressure in the case of swarm activity in Western Bohemia,
Geophys. J. Int., 191, 271–278, 2012.
Hainzl, S., Fischer, T., Čermáková, H., Bachura, M., and
Vlček, J.: Aftershocks triggered by fluid intrusion: Evidence for the
aftershock sequence occurred 2014 in West Bohemia/Vogtland, J. Geophys.
Res., 121, 2575–2590, 2016.
Horálek, J. and Doubravová, J.: West Bohemia local seismic network, FDSN [data set], https://doi.org/10.7914/sn/wb, 2015.
Horálek, J. and Fischer, T.: Role of crustal fluids in triggering the
West Bohemia/Vogtland earthquake swarms: just what we know (a review), Stud.
Geophys. Geod., 52, 455–478, 2008.
Horálek, J., Fischer, T., Boušková, A., and Jedlička, P.: The
Western Bohemia/Vogtland region in the light of the WEBNET network, Stud.
Geophys. Geod., 44, 107–125, 2000.
Hrubcová, P., Vavryčuk, V., Boušková, A., and Horálek,
J.: Moho depth determination from waveforms of microearthquakes in the West
Bohemia/Vogtland swarm area, J. Geophys. Res., 118, 1–17,
https://doi.org/10.1029/2012JB009360, 2013.
Hrubcová, P., Vavryčuk, V., Boušková, A., and Bohnhoff, M.:
Shallow crustal discontinuities inferred from waveforms of microearthquakes:
Method and application to KTB drill site and West Bohemia swarm area, J.
Geophys. Res.-Sol. Ea., 121, 881–902,
https://doi.org/10.1002/2015JB012548, 2016.
Hrubcová, P., Geissler, W. H., Bräuer, K., Vavryčuk, V., Tomek,
Č., and Kämpf, H.: Active magmatic underplating in western Eger
Rift, Central Europe, Tectonics, 36, 2846–2862, https://doi.org/10.1002/2017TC004710,
2017.
Jakoubková, H., Horálek, J., and Fischer, T.: 2014
mainshock-aftershock activity versus earthquake swarms in West Bohemia,
Czech Republic, Pure Appl. Geophys., 175, 109–131,
https://doi.org/10.1007/s00024-017-1679-7, 2018.
Jechumtálová, Z. and Šílený, J.: Amplitude ratios for
complete moment tensor retrieval, Geophys. Res. Lett., 32, L22303, https://doi.org/10.1029/2005GL023967, 2005.
Jost, M. L. and Hermann, R. B.: A student's guide to and review of moment
tensors, Seismol. Res. Lett., 60, 37–57, 1989.
Julian, B. R., Miller, A. D., and Foulger, G. R.: Non-double-couple earthquakes
1: Theory, Rev. Geophys., 36, 525–549, 1998.
Kämpf, H., Bräuer, K., Schumann, J., Hahne, K., and Strauch, G.: CO2
discharge in an active, non-volcanic continental rift area (Czech Republic):
Characterisation (δ13C, 3He/4He) and quantification of diffuse and
vent CO2 emissions, Chem. Geol., 339, 71–83,
https://doi.org/10.1016/j.chemgeo.2012.08.005, 2013.
Knopoff, L. and Randall, M. J.: The compensated linear vector dipole: A
possible mechanism for deep earthquakes, J. Geophys. Res., 75, 4957–4963,
1970.
Kühn, D. and Vavryčuk, V.: Determination of full moment tensors of
microseismic events in a very heterogeneous mining environment,
Tectonophysics, 589, 33–43, https://doi.org/10.1016/j.tecto.2012.12.035, 2013.
Kwiatek, G., Martínez-Garzón, P., and Bohnhoff, M.: HybridMT: A
MATLAB/Shell environment package for seismic moment tensor inversion and
refinement, Seismol. Res. Lett., 87, 964–976, 2016.
Lay, T. and Wallace, T. C.: Modern Global Seismology, Academic Press, New
York, ISBN 9780080536712, 1995.
Lomax, A., Michelini, A., and Curtis, A.: Earthquake location, direct,
global-search methods, in: Complexity In Encyclopedia of Complexity and
System Science, Part 5, Springer, New York, 2449–2473,
https://doi.org/10.1007/978-0-387-30440-3, 2009.
Málek, J., Horálek, J., and
Janský, J.: One-dimensional qP-wave velocity model of the
upper crust for the West Bohemia/Vogtland earthquake swarm region, Stud.
Geophys. Geod., 49, 501–524, 2005.
Miller, A. D., Foulger, G. R., and Julian, B. R.: Non-double-couple earthquakes
2: Observations, Rev. Geophys., 36, 551–568, 1998.
Růžek, B., Vavryčuk, V., Hrubcová, P., Zedník, J., and
Celebration Working Group: Crustal anisotropy in the Bohemian Massif, Czech
Republic: Observations based on Central European Lithospheric Experiment
Based on Refraction (CELEBRATION) 2000, J. Geophys. Res., 108,
2392, https://doi.org/10.1029/2002JB002242, 2003.
Šílený, J.: Resolution of non-double-couple mechanisms:
Simulation of hypocenter mislocation and velocity structure mismodeling,
B. Seismol. Soc. Am., 99, 2265–2272, 2009.
Šílený, J. and Milev, A.: Source mechanism of mining induced
seismic events – Resolution of double couple and non double couple models,
Tectonophysics, 456, 3–15, 2008.
Šílený, J. and Vavryčuk, V.: Approximate retrieval of the
point source in anisotropic media: numerical modelling by indirect
parametrization of the source, Geophys. J. Int., 143, 700–708,
https://doi.org/10.1046/j.1365-246X.2000.00256.x, 2000.
Šílený, J. and Vavryčuk, V.: Can unbiased source be
retrieved from anisotropic waveforms by using an isotropic model of the
medium?, Tectonophysics, 356, 125–138,
https://doi.org/10.1016/S0040-1951(02)00380-3, 2002.
Sokos, E. and Zahradník, J.: ISOLA – A Fortran code and Matlab GUI
to perform multiple point source inversion of seismic data, Comput. Geosci.,
34, 967–977, 2008.
Stierle, E., Vavryčuk, V., Šílený, J., and Bohnhoff, M.:
Resolution of non-double-couple components in the seismic moment tensor
using regional networks: 1. A synthetic case study, Geophys. J. Int.,
196, 1869–1877, https://doi.org/10.1093/gji/ggt502, 2014a.
Stierle, E., Bohnhoff, M., and Vavryčuk, V.: Resolution of
non-double-couple components in the seismic moment tensor using regional
networks: 2. Application to aftershocks of the 1999 Mw 7.4 Izmit earthquake,
Geophys. J. Int., 196, 1878–1888, https://doi.org/10.1093/gji/ggt503,
2014b.
Vavryčuk, V.: Elastodynamic and elastostatic Green tensors for
homogeneous weak transversely isotropic media, Geophys. J. Int., 130,
786–800, https://doi.org/10.1111/j.1365-246X.1997.tb01873.x, 1997.
Vavryčuk, V.: Weak-contrast reflection/transmission coefficients in
weakly anisotropic elastic media: P-wave incidence, Geophys. J. Int., 138,
553–562, https://doi.org/10.1046/j.1365-246X.1999.00890.x, 1999.
Vavryčuk, V.: Focal mechanisms in anisotropic media, Geophys. J. Int., 161, 334–346, https://doi.org/10.1111/j.1365-246X.2005.02585.x, 2005.
Vavryčuk, V.: Spatially dependent seismic anisotropy in the Tonga
subduction zone: a possible contributor to the complexity of deep
earthquakes, Phys. Earth Planet. Int., 155, 63–72,
https://doi.org/10.1016/j.pepi.2005.10.005, 2006.
Vavryčuk, V.: Real ray tracing in anisotropic viscoelastic media,
Geophys. J. Int., 175, 617–626, https://doi.org/10.1111/j.1365-246X.2008.03898.x, 2008.
Vavryčuk, V.: Tensile earthquakes: Theory, modeling, and inversion, J.
Geophys. Res.-Sol. Ea., 116, B12320,
https://doi.org/10.1029/2011JB008770, 2011a.
Vavryčuk, V.: Principal earthquakes: Theory and observations from the
2008 West Bohemia swarm, Earth Planet. Sc. Lett., 305, 290–296,
https://doi.org/10.1016/j.epsl.2011.03.002, 2011b.
Vavryčuk, V.: Is the seismic moment tensor ambiguous at a material
interface?, Geophys. J. Int., 194, 395–400,
https://doi.org/10.1093/gji/ggt084, 2013.
Vavryčuk, V.: Iterative joint inversion for stress and fault
orientations from focal mechanisms, Geophys. J. Int., 199, 69–77,
https://doi.org/10.1093/gji/ggu224, 2014.
Vavryčuk, V.: Moment tensor decompositions revisited, J. Seismol.,
19, 231–252, https://doi.org/10.1007/s10950-014-9463-y, 2015a.
Vavryčuk, V.: MT decomposition package: decomposition and visualization of seismic moment tensors, https://www.ig.cas.cz/mt-decomposition/ (last access: 4 May 2022), 2015b.
Vavryčuk, V. and Adamová, P.: Detection of stress anomaly produced
by interaction of compressive fault steps in the West Bohemia swarm region,
Czech Republic, Tectonics, 37, 4212–4225,
https://doi.org/10.1029/2018TC005163, 2018.
Vavryčuk, V. and Adamová, P.: Non-double-couple moment tensors of earthquakes calculated using empirical Green's functions, Seismol. Res. Lett., 91, 390–398, https://doi.org/10.1785/0220190154, 2020.
Vavryčuk, V. and Boušková, A.: S-wave splitting from records of
local micro-earthquakes in West Bohemia/Vogtland: An indicator of complex
crustal anisotropy, Stud. Geophys. Geod., 52, 631–650,
https://doi.org/10.1007/s11200-008-0041-z, 2008.
Vavryčuk, V. and Hrubcová, P.: Seismological evidence of fault
weakening due to erosion by fluids from observations of intraplate
earthquake swarms, J. Geophys. Res., 122, 3701–3718,
https://doi.org/10.1002/2017JB013958, 2017.
Vavryčuk, V. and Kühn, D.: Moment tensor inversion of waveforms: a
two-step time-frequency approach, Geophys. J. Int., 190, 1761–1776,
https://doi.org/10.1111/j.1365-246X.2012.05592.x, 2012.
Vavryčuk, V., Bohnhoff, M., Jechumtálová, Z., Kolář, P., and Šílený, J.: Non-double-couple mechanisms of micro-earthquakes induced during the 2000 injection experiment at the KTB site, Germany: A result of tensile faulting or anisotropy of a rock?, Tectonophysics, 456, 74–93, https://doi.org/10.1016/j.tecto.2007.08.019, 2008.
Vavryčuk, V., Bouchaala, F., and Fischer, T.: High-resolution fault
image from accurate locations and focal mechanisms of the 2008 swarm
earthquakes in West Bohemia, Czech Republic, Tectonophysics, 590, 189–195,
https://doi.org/10.1016/j.tecto.2013.01.025, 2013.
Vavryčuk, V., Adamová, P., Doubravová, J., and Jakoubková,
H.: Moment tensor inversion based on the principal component analysis of
waveforms: Method and application to microearthquakes in West Bohemia, Czech
Republic, Seismol. Res. Lett., 88, 1303–1315,
https://doi.org/10.1785/0220170027, 2017.
Vavryčuk, V., Adamová, P., Doubravová, J., and Ren, Y.: Mapping
stress and fluids on faults by nonshear earthquakes, J. Geophys. Res.-Sol.
Ea., 126, e2020JB021287, https://doi.org/10.1029/2020JB021287, 2021.
Vavryčuk, V., Adamová, P., Doubravová, J., and Horálek, J.:
WEBNET moment tensor catalogue 2008–2018, Mendeley Data, V2,
https://doi.org/10.17632/9pwy7rgzkt.2, 2022a.
Vavryčuk, V., Adamová, P., Doubravová, J., and Horálek, J.:
WEBNET moment tensor catalogue 2008–2018, ISC Seismological Dataset
Repository, https://doi.org/10.31905/H212Z6OX, 2022b.
Waldhauser, F. and Ellsworth, W. L.: A double-difference earthquake location
algorithm: Method and application to the northern Hayward fault, California,
B. Seismol. Soc. Am., 90, 1353–1368,
https://doi.org/10.1785/0120000006, 2000.
Yu, C., Vavryčuk, V., Adamová, P., and Bohnhoff, M.: Moment tensors
of induced microearthquakes in The Geysers geothermal reservoir from
broadband seismic recordings: Implications for faulting regime, stress
tensor and fluid pressure, J. Geophys. Res.-Sol. Ea., 123, 8748–8766,
https://doi.org/10.1029/2018JB016251, 2018.
Yu, C., Vavryčuk, V., Adamová, P., and Bohnhoff, M.:
Frequency-dependent moment tensors of induced microearthquakes, Geophys.
Res. Lett., 46, 6406–6414, https://doi.org/10.1029/2019GL082634, 2019.
Zahradník, J., Sokos, E., Tselentis, G.-A., and Martakis, N.:
Non-double-couple mechanism of moderate earthquakes near Zakynthos, Greece,
April 2006; explanation in terms of complexity, Geophys. Prospect., 56,
341–356, 2008.
Short summary
We present a unique catalogue of more than 5100 highly accurate seismic moment tensors of earthquakes that occurred in West Bohemia, Czech Republic, in the period 2008–2018. The catalogue covers a long period of seismicity with several prominent earthquake swarms. The dataset is ideal for being utilized by a large community of researchers for various seismological purposes such as for studies of migration of foci, spatiotemporal evolution of seismicity, tectonic stress, or fluid flow on faults.
We present a unique catalogue of more than 5100 highly accurate seismic moment tensors of...
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