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Bohemia earthquakes

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Journal Article

Focal Mechanisms of West Bohemia, Central Europe, Earthquakes—End of May 2014: Evidence of Volume Changes

Dana Křížová, Jiří Málek
Published: 14 July 2021
Seismological Research Letters (2021) 92 (6): 3398–3415.
DOI: https://doi.org/10.1785/0220200389
...Dana Křížová; Jiří Málek Abstract West Bohemia is a region with a lot of mineral springs and gas outflows, which seems to be related to the remains of Quaternary volcanism in Central Europe. Earthquake swarms in shallow depths (less than 15 km) are very frequent there. We focused on the strongest...
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Location of the seismic stations and West <span class="search-highlight">Bohemia</span> <span class="search-highlight">earthquake</span> swarm region. ...

Location of the seismic stations and West Bohemia earthquake swarm region. ...

Published: 19 December 2018
Figure 1. Location of the seismic stations and West Bohemia earthquake swarm region. (Left inset) Geographic position of main map window within Europe. (Right inset) Location of the used seismic stations (large triangles) and the relocated events (tiny triangles) of the 2008 earthquake swarm
Journal Article

Workshop on Earthquake Swarm in Western Bohemia, December 1985 – February 1986

Dana Procházková
Published: 01 July 1987
Seismological Research Letters (1987) 58 (3): 81–83.
DOI: https://doi.org/10.1785/gssrl.58.3.81
...Dana Procházková © 1987 by the Seismological Society of America 1987 ANNOUNCEMENT Editor's Note: The following summary and table of contents of proceedings were received from Dr. Dana Procházková of the Czechoslovakian Academy of Sciences. A review paper on the Western Bohemia earthquake...
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Fast and Robust Earthquake Source Spectra and Moment Magnitudes from Envelope Inversion

Tom Eulenfeld, Torsten Dahm, Sebastian Heimann, Ulrich Wegler
Published: 23 November 2021
Bulletin of the Seismological Society of America (2022) 112 (2): 878–893.
DOI: https://doi.org/10.1785/0120210200
... comprising the 2018 West Bohemia earthquake swarm. We report moment magnitudes, corner frequencies, and centroid moment tensors inverted from short‐period body waves with the Grond package for all earthquakes with a local magnitude larger than 1.8. Moment magnitudes calculated by envelope inversion show...
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Discrimination between local microearthquakes and quarry blasts by multi-layer perceptrons and Kohonen maps

Miloslav Musil, Axel Plešinger
Published: 01 August 1996
Bulletin of the Seismological Society of America (1996) 86 (4): 1077–1090.
DOI: https://doi.org/10.1785/BSSA0860041077
...Miloslav Musil; Axel Plešinger Abstract The results of the application of artificial neural nets ( ANNs ) to discriminating microearthquakes from quarry and mining blasts in the West Bohemia earthquake swarm region are presented and discussed. Input vectors consisting of seven spectral and seven...
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The 1985/86 Earthquake Swarm in Western Bohemia

Dana Procháková
Published: 01 April 1988
Seismological Research Letters (1988) 59 (2): 71–78.
DOI: https://doi.org/10.1785/gssrl.59.2.71
...Dana Procháková Abstract Earthquake swarms are typical of Western Bohemia and the Vogtland region. The 1985/86 earthquake swarm lasted about two months (Dec. 1985 – Jan. 1986). It split into four active periods. Several thousands of earthquakes were recorded. The strongest shock was on Dec. 21...
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Relocated <span class="search-highlight">earthquakes</span> of the 2011 West <span class="search-highlight">Bohemia</span> (Czechia) <span class="search-highlight">earthquake</span> swarm w...

Relocated earthquakes of the 2011 West Bohemia (Czechia) earthquake swarm w...

Published: 21 August 2019
Figure 2. Relocated earthquakes of the 2011 West Bohemia (Czechia) earthquake swarm with assumed mislocations. (a) A map view. (b) S‐N depth cross section. (c) W‐E depth cross section. Earthquakes with M L ≥ 3 are highlighted. The activity covered two distinct north‐striking fault
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(a) Focal mechanisms of two principal <span class="search-highlight">earthquakes</span> in West <span class="search-highlight">Bohemia</span>, (b) foca...

(a) Focal mechanisms of two principal earthquakes in West Bohemia, (b) foca...

Published: 01 December 2012
Figure 12. (a) Focal mechanisms of two principal earthquakes in West Bohemia, (b) focal mechanisms of 200 micro‐earthquakes selected from the 2008 swarm in West Bohemia for calibrating the WEBNET network.
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The moment tensors of 200 selected micro‐<span class="search-highlight">earthquakes</span> in West <span class="search-highlight">Bohemia</span> retrie...

The moment tensors of 200 selected micro‐earthquakes in West Bohemia retrie...

Published: 01 December 2012
Figure 15. The moment tensors of 200 selected micro‐earthquakes in West Bohemia retrieved using the uncalibrated (upper plots) and calibrated (lower plots) WEBNET network. The corrected moment tensors display low root‐mean‐square (rms) values and the non‐double‐couple (non‐DC) components form
Journal Article

Determination of τ 0 and Rock Site κ from Records of the 2008/2009 Earthquake Swarm in Western Bohemia

Stefan Hiemer, Frank Scherbaum, Dirk Roessler, Nicolas Kuehn
Published: 01 May 2011
Seismological Research Letters (2011) 82 (3): 387–393.
DOI: https://doi.org/10.1785/gssrl.82.3.387
... report on the determination of τ 0 from records of a recent earthquake swarm in Western Bohemia in 2008/2009. In Western Bohemia the periodic occurrence of earthquake swarms attracted the attention of researchers as early as the 19th century. The German term Schwarmbeben (“swarm earthquake...
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A Deep Convolutional Neural Network for Localization of Clustered Earthquakes Based on Multistation Full Waveforms

Marius Kriegerowski, Gesa M. Petersen, Hannes Vasyura‐Bathke, Matthias Ohrnberger
Published: 19 December 2018
Seismological Research Letters (2019) 90 (2A): 510–516.
DOI: https://doi.org/10.1785/0220180320
...Figure 1. Location of the seismic stations and West Bohemia earthquake swarm region. (Left inset) Geographic position of main map window within Europe. (Right inset) Location of the used seismic stations (large triangles) and the relocated events (tiny triangles) of the 2008 earthquake swarm...
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Non‐Double‐Couple Moment Tensors of Earthquakes Calculated Using Empirical Green’s Functions

Václav Vavryčuk, Petra Adamová
Published: 13 November 2019
Seismological Research Letters (2020) 91 (1): 390–398.
DOI: https://doi.org/10.1785/0220190154
... EGFs are applied to refine the original moment tensors used for constructing the EGFs. Because the EGFs describe the velocity model better than the standard GFs, the refined moment tensors are more accurate. The method is applied to real observations of earthquakes of the 2008 swarm in West Bohemia...
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Regions of this study for which seismic events were discriminated. The regi...

Regions of this study for which seismic events were discriminated. The regi...

Published: 27 December 2023
of stationwise recorded earthquake (EQ) and QB events for Italy are 3,099/572, for West Bohemia 10,756/3,443, and for Utah 16,129/9,338. Inset figures show the location of the regions on the globe.
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Distribution of <span class="search-highlight">earthquake</span> epicenters in the West <span class="search-highlight">Bohemia</span>-Vogtland region d...

Distribution of earthquake epicenters in the West Bohemia-Vogtland region d...

Published: 01 May 2016
Fig. 10 Distribution of earthquake epicenters in the West Bohemia-Vogtland region during the period 1991 to 2011 (colored circles). Some distinct clusters of swarm activity are indicated in various colors. Red circles are epicenters not clearly associated with distinct clusters of intense swarm
Journal Article

Reply to “Comment on ‘Attenuation in West Bohemia: Evidence of High Attenuation in the Nový Kostel Focal Zone and Temporal Change Consistent with CO 2 Degassing’ by M. Wcisło, L. Eisner, J. Málek, T. Fischer, J. Vlček, and G. Kletetschka” by Morozov

Miłosz Wcisło, Leo Eisner, Jiří Málek, Tomáš Fischer, Josef Vlček, Gunther Kletetschka
Published: 14 January 2020
Bulletin of the Seismological Society of America (2020) 110 (1): 375–380.
DOI: https://doi.org/10.1785/0120190100
... in the West Bohemia earthquake area, Czech Republic: First results , Stud. Geophys. Geod. 53 , no.  3 , 315 – 328 , doi: 10.1007/s11200-009-0020-z . Fischer T. Horálek J. Hrubcová P. Vavryčuk V. Bräuer K. , and Kämpfd C. 2014 . Intra‐continental earthquake swarm in West...
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Attenuation in West Bohemia: Evidence of High Attenuation in the Nový Kostel Focal Zone and Temporal Change Consistent with CO 2 Degassing

Miłosz Wcisło, Leo Eisner, Jiří Málek, Tomáš Fischer, Josef Vlček, Gunther Kletetschka
Published: 09 January 2018
Bulletin of the Seismological Society of America (2018) 108 (1): 450–458.
DOI: https://doi.org/10.1785/0120170168
...Miłosz Wcisło; Leo Eisner; Jiří Málek; Tomáš Fischer; Josef Vlček; Gunther Kletetschka Abstract We used the 2008 West Bohemia (WB) swarm earthquakes to characterize the seismic attenuation in the region. We found effective attenuation factors Q P ranging between 150 and 175 and Q S between 125...
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Inversion for the Composite Moment Tensor

Václav Vavryčuk
Published: 10 November 2015
Bulletin of the Seismological Society of America (2015) 105 (6): 3024–3035.
DOI: https://doi.org/10.1785/0120150163
... of individual multiple events. The robustness of the method is numerically tested. Finally, the method is applied to microearthquakes that occurred during the 2008 earthquake swarm in West Bohemia, Czech Republic. The standard moment tensor inversion for one individual event is based on the following...
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Waveform Cross‐Correlation for Differential Time Measurement: Bias and Limitations

Martin Bachura, Tomáš Fischer
Published: 21 August 2019
Seismological Research Letters (2019) 90 (5): 2005–2014.
DOI: https://doi.org/10.1785/0220190096
...Figure 2. Relocated earthquakes of the 2011 West Bohemia (Czechia) earthquake swarm with assumed mislocations. (a) A map view. (b) S‐N depth cross section. (c) W‐E depth cross section. Earthquakes with M L ≥ 3 are highlighted. The activity covered two distinct north‐striking fault...
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Journal Article

Seismic Network Calibration for Retrieving Accurate Moment Tensors

Rosalia Davi, Václav Vavryčuk
Published: 01 December 2012
Bulletin of the Seismological Society of America (2012) 102 (6): 2491–2506.
DOI: https://doi.org/10.1785/0120110344
...Figure 12. (a) Focal mechanisms of two principal earthquakes in West Bohemia, (b) focal mechanisms of 200 micro‐earthquakes selected from the 2008 swarm in West Bohemia for calibrating the WEBNET network. ...
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Locations of microearthquakes in the West <span class="search-highlight">Bohemia</span> region. The locations are...

Locations of microearthquakes in the West Bohemia region. The locations are...

Published: 02 August 2017
Figure 7. Locations of microearthquakes in the West Bohemia region. The locations are shown in (a, b) the map view and in (c) vertical sections across the fault zone and (d) along the fault zone. The triangles in (b) show the positions of the West Bohemia Network (WEBNET) stations: magenta