Václav Vavryčuk

Václav Vavryčuk is a senior researcher at the Institute of Geophysics CAS. He focuses on theoretical and computational seismology and cosmology. In seismology, he is interested in modelling of seismic waves in isotropic and anisotropic media, near-field waves, parameters of earthquake sources, focal mechanisms and seismic moment tensors, analysis of micro-earthquakes in the West Bohemia region, advanced methods of data processing, and inversion for tectonic stress from focal mechanisms. In cosmology, he is focused on light extinction due to absorption of light by cosmic dust, modelling of extragalactic background light and cosmic microwave background, and on properties of the early universe and its dynamics.

He is an author of more than 100 papers published in impacted astronomical, physical or geophysical journals. He is a Titular Member of the European Seismological Commission for the Czech Republic (2000 – till now).

Publications

• Nouri, A., Rahimi, B., Vavryčuk, V., Ghaemi, F., 2024. Tectonic stress around the South Caspian basin deduced from earthquake focal mechanisms, Int. Geol. Review, doi: 10.1080/00206814.2024.2315556, in press
• Ren, Y., Vavryčuk, V., Zhao, L., 2024. Assessing the effectiveness of the shear-tensile-compressive model in earthquake source inversions: Synthetic experiments and field application, Geophys. J. Int., 236, 161-173, doi: 10.1093/gji/ggad425.
• Nouri, A., Rahimi, B., Vavryčuk, V., Sadeghi, H., 2024. Stress and faulting pattern in the Bam region, SE Iran, detected by fault instability criterion and Fry method, Pure Appl. Geophys., 181, 219-231.
• Petružálek, M., Lokajíček, T., Přikryl, R., Vavryčuk, V., 2023. Velocity anisotropy measured on the spherical specimens: history and applications, J. Geodynamics, 158, 102002, doi: 10.1016/j.jog.2023.102002.
• Vavryčuk, V., Petružálek, M., Lokajíček, T., Aminzadeh, A., 2023. Bi-modular properties of sandstone inferred from seismic moment tensors of acoustic emissions, Int. J. Rock Mech. Min. Sci., 171, 105576, doi: 10.1016/j.ijrmms.2023.105576.
• Hrubcová, P., Vavryčuk, V., 2023. Tectonic stress changes related to plate spreading prior to the 2021 Fagradalsfjall eruption in SW Iceland, Tectonophysics, 851, 229761, doi: 10.1016/j.tecto.2023.229761.
• Vavryčuk, V., 2023. Gravitational orbits in the expanding universe revisited, Frontiers in Astronomy and Space Sciences – Cosmology, 10, 1071743, doi: 10.3389/fspas.2023.1071743.
• Vavryčuk, V., 2023. Considering light-matter interactions in Friedmann equations based on the conformal FLRW metric, Journal of Advanced Research, 46, 49-59, doi: 10.1016/j.jare.2022.06.015.
• Nouri, A., Rahimia, B., Vavryčuk, V., Ghaemia, F., 2023. Spatially varying crustal stress along the Zagros seismic belt inferred from earthquake focal mechanisms, Tectonophysics, 846, 229653, doi: 10.1016/j.tecto.2022.229653.
• Ren, Y., Vavryčuk, V., Gao, Y., Wu, S., Gan, Y., 2022. Efficiency of surface monitoring layouts for retrieving accurate moment tensors in hydraulic fracturing experiments, Pure Appl. Geophys., 179, 3341-3356, doi: 10.1007/s00024-022-03122-9.
• Ouyed, R., O., Boughacha, M.S., Bezzeghoud, M., Vavryčuk, V., 2022. Fault plane picking from focal mechanisms in reverse faulting stress: Application to the Mw6.9 Boumerdes (Algeria) earthquake sequence, J. African Earth Sci., 196, 104729, doi: 10.1016/j.jafrearsci.2022.104729.
• Aminzadeh, A., Petružálek, M., Vavryčuk, V., Ivankina, T.I., Svitek, T., Petrlíková, A., Staš, L., Lokajíček, T., 2022. Identification of higher symmetry in triclinic stiffness tensor: application to high pressure dependence of elastic anisotropy in deep underground structures, Int. J. Rock Mech. Mining Sci., 158, 105168, doi: 10.1016/j.ijrmms.2022.105168.
• Vavryčuk, V., Adamová, P., Doubravová, J., Horálek, J., 2022. Moment tensor catalogue of earthquakes in West Bohemia from 2008 to 2018, Earth System Science Data, 14, 2179-2194, doi: 10.5194/essd-14-2179-2022.
• Vavryčuk, V., 2022. Cosmological redshift and cosmic time dilation in the FLRW metric, Frontiers in Physics – Cosmology, 210, 826188, doi: 10.3389/fphy.2022.826188.
• Vavryčuk, V., 2022. Considering light-matter interactions in the Friedmann equations, Proceedings of the Royal Society A, 478, 20220045, doi: 10.1098/rspa.2022.0045.
• Hrubcová, P., Vavryčuk, V., 2021.  Contact of the Samoan plume with the Tonga subduction from intermediate and deep-focus earthquakes, Surveys Geophys., 42, 1347-1375, doi: 10.1007/s10712-021-09679-9.
• Ren, Y., Vavryčuk, V., Wu, S., Gao, Y., 2021. Accurate moment tensor inversion of acoustic emissions and its application to Brazilian splitting test, Int. J. Rock Mech. Min. Sci., 141, 104707, doi: 10.1016/j.ijrmms.2021.104707.
• Hrubcová, P., Doubravová, J., Vavryčuk, V., 2021. Non-double-couple earthquakes in 2017 swarm in Reykjanes Peninsula, SW Iceland: Sensitive indicator of volcano-tectonic movements at slow-spreading rift, Earth Planet. Sci. Lett., 563, 116875, doi: 10.1016/j.epsl.2021.116875.
• Vavryčuk, V., Adamová, P., Doubravová, J., Ren, Y., 2021. Mapping stress and fluids on faults by nonshear earthquakes, J. Geophys. Res.: Solid Earth, 126, e2020JB021287, doi: 10.1029/2020JB021287.
• Vavryčuk, V., Kroupa, P., 2020. The failure of testing for cosmic opacity via the distance-duality relation, Monthly Notices of the Royal Astronomical Society, 497, 378-388, doi: 10.1002/2014GL061265.
• Ren, Y., Gao, Y., Wu, S., Vavryčuk, V., 2020. Optimum size and density of surface grid arrays for retrieving accurate shear-tensile fracturing of microearthquakes, Geophys. Prospecting, 68, 2347-2360, doi: 0.1111/1365-2478.12997.
• Huang, G., Luo, S., Deng, J., Vavryčuk, V., 2020. Traveltime calculations for qP-, qSV- and qSH-waves in two-dimensional tilted transversely isotropic media, J. Geophys. Res.: Solid Earth, 125, e2019JB018868, doi: 10.1029/2019JB018868.
• Vavryčuk, V., Adamová, P., 2020. Non-double-couple moment tensors of earthquakes calculated using empirical Green’s functions, Seismol. Res. Lett, 91(1), 390-398, doi: 10.1785/0220190154.
• Vavryčuk, V., 2019. Universe opacity and Type Ia supernova dimming, Monthly Notices of the Royal Astronomical Society, 489, L63-L69, arXiv: 1909.05102, doi: 10.1093/mnrasl/slz128.
• Yu, Ch., Vavryčuk, V., Adamová, P., Bohnhoff, M., 2019. Frequency-dependent moment tensors of induced microearthquakes, Geophys. Res. Lett., 46, 64-06-6414, doi: 10.1029/2019GL082634.
• Wollin, Ch., Bohnhoff, M., Vavryčuk, V., Martínez-Garzón, P., 2019. Stress inversion of regional seismicity in the Sea of Marmara Region, Turkey, Pure Appl. Geophys., 176(3), 1269-1291, doi: 10.1007/s00024-018-1971-1.
• Vavryčuk, V., Adamová, P., 2018. Detection of stress anomaly produced by interaction of compressive fault steps in the West Bohemia swarm region, Czech Republic, Tectonics, 37, 4212-4225, doi: 10.1029/2018TC005163.
• Yu, Ch., Vavryčuk, V., Adamová, P., Bohnhoff, M., 2018. 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., Solid Earth, 123, 8748-8766, doi: 10.1029/2018JB016251.
• Vavryčuk, V., 2018. Universe opacity and CMB, Monthly Notices of the Royal Astronomical Society, 478, 283-301, arXiv: 1804.06875, doi: 10.1093/mnras/sty974.
• Fojtíková, L., Vavryčuk, V., 2018. Tectonic stress regime in the 2003-2004 and 2012-2015 earthquake swarms in the Ubaye Valley, French Alps, Pure Appl. Geophys., 175, 1997-2008, doi: 10.1007/s00024-018-1792-2.
• Vavryčuk, V., 2018. Fair ranking of researchers and research teams, PLOS ONE, 13(4), e0195509, doi: 10.1371/journal.pone.0195509.
• Vavryčuk, V., 2018. Seismic moment tensors in anisotropic media: A review, in: Moment Tensor Solutions, S. D’Amico (ed.), Springer Natural Hazards, 29-54, doi: 10.1007/978-3-319-77359-9_2.
• Najdahmadi, B., Hrubcová, P., Vavryčuk, V., Bohnhoff, M., 2018. Imaging the Mudurnu segment of the North Anatolian fault zone from waveforms of small earthquakes, J. Geophys. Res., Solid Earth, 123, 493-512, doi: 10.1002/2017JB015198.
• Hrubcová, P., Geissler, W.H., Braeuer, K., Vavryčuk, V., Tomek, Č., Kaempf, H., 2017. Active magmatic underplating in western Eger Rift, Central Europe, Tectonics, 36, 2846-2862, doi: 10.1002/2017TC004710.
• Vavryčuk, V., Adamová, P., Doubravová, J., Jakoubková, H., 2017. 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(5), 1303-1315, doi: 10.1785/0220170027.
• Vavryčuk, V., 2017. Missing dust signature in the cosmic microwave background, Monthly Notices of the Royal Astronomical Society, 470(1), L44-L48, doi:10.1093/mnrasl/slx069.
• Vavryčuk, V., Hrubcová, P., 2017. Seismological evidence of fault weakening due to erosion by fluids from observations of intraplate earthquake swarms, J. Geophys. Res., Solid Earth, 122(5), 3701-3718, doi: 10.1002/2017JB013958.
• Svitek, T., Vavryčuk, V., Lokajíček, T., Petružálek, M., Kern, H., 2017. Effect of pressure on 3D distribution of P-wave velocity and attenuation in antigorite serpentinite, Geophysics,  82(4), WA34-WA44, doi: 10.1190/GEO2017-0006.1.
• Vavryčuk, V., Svitek, T., Lokajíček, T., 2017. Anisotropic attenuation in rocks: Theory, modelling and lab measurements, Geophys. J. Int., 208, 1724-1739, doi: 10.1093/gji/ggw476.
• Vavryčuk, V., 2017. Universe opacity and EBL, Monthly Notices of the Royal Astronomical Society, 465(2), 1532-1542, arXiv: 1611.01753, doi: 10.1093/mnras/stw2825.
• Grechka, V., Li, Z., Howell, B., Vavryčuk, V., 2016. Single-well moment tensor inversion of tensile microseismic events, Geophysics, 81(6), KS219-KS229, doi: 10.1190/GEO2016-0186.1.
• Martinez-Garzón, P., Vavryčuk, V., Kwiatek, G, Bohnhoff, M., 2016. Sensitivity of stress inversion of focal mechanisms to pore pressure changes, Geophys. Res. Lett., 43(16), 8441-8450, doi: 10.1002/2016GL070145.
• Vavryčuk, V., 2016. Impact of galactic and intergalactic dust on the stellar EBL, Astrophysics and Space Science, 361, 198, arXiv: 1605.08085, doi: 10.1007/s10509-016-2785-1.
• Hrubcová, P., Vavryčuk, V., Boušková, A., Bohnhoff, M., 2016. Shallow crustal discontinuities inferred from waveforms of microearthquakes: Method and application to KTB drill site and West Bohemia swarm area, J. Geophys. Res., Solid Earth, 121, 881-902, doi: 10.1002/2015JB012548.
• Stierle, E., Vavryčuk, V., Kwiatek, G., Charalampidou, E.-M., Bohnhoff, M., 2016. Seismic moment tensors of acoustic emissions recorded during laboratory rock deformation experiments: Sensitivity to attenuation and anisotropy, Geophys. J. Int., 205(1), 38-50, doi: 10.1093/gji/ggw009.
• Vavryčuk, V., 2015. Inversion for the composite moment tensor, Bull. Seism. Soc. Am, 105(6),  3024-3035, doi: 10.1785/0120150163.
• Vavryčuk, V., 2015. Earthquake mechanisms and stress field,  in Encyclopedia of Earthquake Engineering, edited by M. Beer, E. Patelli, I. Kougioumtzoglou and I. S.-K. Au, Springer-Verlag, Berlin, doi: 10.1007/978-3-642-36197-5_295-1.
• Vavryčuk, V., 2015. Moment tensors: Decomposition and visualization,  in Encyclopedia of Earthquake Engineering, edited by M. Beer, E. Patelli, I. Kougioumtzoglou and I. S.-K. Au, Springer-Verlag, Berlin, doi: 10.1007/978-3-642-36197-5_288-1.
• Vavryčuk, V., 2015. Determination of parameters of viscoelastic anisotropy from ray velocity and ray attenuation: Theory and numerical modeling, Geophysics, 80(3), C59-C71, doi: 10.1190/GEO2014-0355.1.
• Vavryčuk, V., 2015. Moment tensor decompositions revisited, J. Seismology, 19(1), 213-252, doi: 10.1007/s10950-014-9463-y.
• Vavryčuk, V., Kim, S.G., 2014. Nonisotropic radiation of the 2013 North Korean nuclear explosion, Geophys. Res. Lett., 41, doi: 10.1002/2014GL061265.
• Svitek, T., Vavryčuk, V., Lokajíček, T., Petružálek, M., 2014. Determination of elastic anisotropy of rocks from P- and S-wave velocities: Numerical modelling and lab measutements, Geophys. J. Int., 199(3), 1682-1697, doi: 10.1093/gji/ggu332.
• Alexandrakis, C., Caló, M., Bouchaala, F., Vavryčuk, V., 2014. Velocity structure and the role of fluids in the West Bohemia Seismic Zone, Solid Earth, 5, 863-872, doi: 10.5194/se-5-863-2014.
• Vavryčuk, V., 2014. Iterative joint inversion for stress and fault orientations from focal mechanisms, Geophys. J. Int., 199, 69-77, doi: 10.1093/gji/ggu224.
• Aker E., Kuehn, D., Vavryčuk, V., Soldal, M, Oye, V., 2014. Experimental investigations of acoustic emissions and their moment tensors in rock during failure, Int. J. Rock Mech. Mining Sci., 70, 286-295, doi: 10.1016/j.ijrmms.2014.05.003.
• Stierle, E., Vavryčuk, V., Šílený, J., Bohnhoff, M., 2014. Resolution of non-double-couple components in the seismic moment tensor using regional networks: 1. A synthetic case study, Geophys. J. Int., 196, No. 3, 1869-1877, doi: 10.1093/gji/ggt502.
• Stierle, E., Bohnhoff, M., Vavryčuk, V., 2014. Resolution of the 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, No. 3, 1878-1888, doi: 10.1093/gji/ggt503.
• Fischer, T., Horálek, J., Hrubcová, P., Vavryčuk, V., Brauer, K., Kaempf, H., 2014. Intra-continental earthquake swarms in West-Bohemia and Vogtland: a review, Tectonophysics, 611, 1-27, doi: 10.1016/j.tecto.2013.11.001.
• Davi, R., Vavryčuk, V., Charalampidou, E.-M., Kwiatek, G., 2013. Network sensor calibartion for retrieving accurate moment tensors of acoustic emissions, Int. J. Rock Mech. Mining Sci., 62, 59-67, doi: 10.1016/j.ijrmms.2013.04.004.
• Hrubcová, P., Šroda, P., Vavryčuk, V., Babuška, V., Grad, M., 2013. Comment on the Seismic method depth-recursive tomography on grid (DRTG) developed by Miroslav Novotny and recently published in three papers in Surveys in Geophysics, Surv. Geophys., 34, No. 4, 521-529,  doi: 10.1007/s10712-013-9228-0.
• Vavryčuk, V., 2013. Is the seismic moment tensor ambiguous at a material interface? Geophys. J. Int., 194, No. 1, 395-400, doi: 10.1093/gji/ggt084.
• Bouchaala, F., Vavryčuk, V., Fischer, T., 2013. Accuracy of the master-event and double-difference locations: Synthetic tests and application to seismicity in West Bohemia, Czech Republic, J. Seismology, 17, No. 3, 841-859, doi: 10.1007/s10950-013-9357-4.
• Vavryčuk, V., Bouchaala, F., Fischer, T., 2013. High-resolution fault image from accurate locations and focal mechanisms of the 2008 swarm earthquakes in West Bohemia, Czech Republic, Tectonophysics, 590, 189-195, doi: 10.1016/j.tecto.2013.01.025.
• Kuehn, D., Vavryčuk, V., 2013. Determination of full moment tensors in a very heterogeneous mining environment, Tectonophysics, 589, 33-43, doi: 10.1016/j.tecto.2012.12.035.
• Hrubcová, P., Vavryčuk, V., Boušková, A., Horálek, J., 2013. Moho depth determination from waveforms of microearthquakes in the West Bohemia/Vogtland swarm area, J. Geophys. Res., 118, 1-17, doi: 10.1029/2012JB009360.
• Vavryčuk, V., 2013. Inversion for weak triclinic anisotropy from acoustic axes, Wave Motion, 50,  1271-1282, doi: 10.1016/j.wavemoti.2012.11.003.
• Davi, R., Vavryčuk, V., 2012. Seismic network calibration for retrieving accurate moment tensors. Bull. Seism. Soc. Am., 102, vol. 6, 2491-2506, doi: 10.1785/0120110344.
• Vavryčuk, V., Kuehn, D., 2012. Moment tensor inversion of waveforms: a two-step time-frequency approach, Geophys. J. Int., 190, 1761-1776., doi: 10.1111/j.1365-246X.2012.05592.x.
• Vavryčuk, V., 2012. On numerically solving the complex eikonal equation using real ray-tracing methods: A comparison with the exact analytical solution, Geophysics, 77, T109-T116, doi: 10.1190/GEO2011-0431.1.
• Vavryčuk, V., 2011. Tensile earthquakes: theory, modeling, and inversion, J. Geophys. Res., 116, B12320, doi: 10.1029/2011JB008770.
• Vavryčuk, V., 2011. Detection of high-frequency tensile vibrations of a fault during shear rupturing: observations from the 2008 West Bohemia swarm, Geophys. J. Int., 186, 1404-1414, doi: 10.1111/j.1365-246X.2011.05122.x.
• Vavryčuk, V., 2011. Principal earthquakes: theory and observations from the 2008 West Bohemia swarm, Earth and Planet. Sci. Lett., 305, 290-296, doi: 10.1016/j.epsl.2011.03.002.
• Fojtíková, L., Vavryčuk, V., Cipciar, A., Madarás, J., 2010. Focal mechanisms of micro-earthquakes in the Dobrá Voda seismoactive area in the Malé Karpaty Mts. (Little Carpathians), Slovakia, Tectonophysics, 492, 213-229, doi: 10.1016/j.tecto.2010.06.007.
• Vavryčuk, V., 2010.  Behaviour of rays at interfaces in anisotropic viscoelastic media,  Geophys. J. Int., 181, 1665-1677, doi:  10.1111j.1365-246X.2010.04583.x.
• Vavryčuk, V., 2009. Weak anisotropy-attenuation parameters, Geophysics, 74, No. 5, WB203-WB213, doi: 10.1190/1.3173154.
• Vavryčuk, V., Boušková, A., 2008. 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.
• Vavryčuk, V., 2008. Real ray tracing in anisotropic viscoelastic media, Geophys. J. Int., 175, 617-626, doi: 10.1111/j.1365-246X.2008.03898.x.
• Vavryčuk, V., Bohnhoff, M., Jechumtálová, Z., Kolář, P., Šílený, J., 2008. 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, doi:10.1016/j.tecto.2007.08.019.
• Vavryčuk, V., 2008. Velocity, attenuation and quality factor in anisotropic viscoelastic media: a perturbation approach, Geophysics, 73, No. 5, D63-D73, doi:10.1190/1.2921778.
• Vavryčuk, V., 2007. Ray velocity and ray attenuation in homogeneous anisotropic viscoelastic media, Geophysics, 72, No. 6, D119-D127, doi: 10.1190/1.2768402.
• Vavryčuk, V., 2007. Asymptotic Green’s function in homogeneous anisotropic viscoelastic media, Proc. Roy. Soc. A, 463, 2689-2707, doi: 10.1098/rspa.2007.1862.
• Vavryčuk, V., 2007. On the retrieval of moment tensors from borehole data, Geophysical Prospecting, 55, 381-391, doi:10.1111/j.1365-2478.2007.00624.x.
• Vavryčuk, V., 2006. Spatially dependent seismic anisotropy in the Tonga subduction zone: a possible contributor to the complexity of deep earthquakes, Phys. Earth Planet. Inter., 155, 63-72, doi:10.1016/j.pepi.2005.10.005.
• Vavryčuk, V., 2006. Calculation of the slowness vector from the ray vector in anisotropic media, Proc. Roy. Soc. A, 462, 883–896, doi: 10.1098/rspa.2005.1605.
• Vavryčuk, V., 2006. Focal mechanisms produced by shear faulting in weakly transversely isotropic crustal rocks, Geophysics, 71, D145-D152, doi: 10.1190/1.2236378.
• Vavryčuk, V., 2006. Comment to “qS-waves in a vicinity of the axis of symmetry of homogeneous transversely isotropic media”, by M. Popov, G.F. Passos, and M.A. Botelho [Wave Motion 42, 2005, 191-201], Wave Motion, 44, 128-136, doi:10.1016/j.wavemoti.2006.08.004.
• Vavryčuk, V., 2005. Acoustic axes in triclinic anisotropy, J. Acoust. Soc. Am., 118, 647-653, doi: 10.1121/1.1954587.
• Vavryčuk, V., 2005. Focal mechanisms in anisotropic media, Geophys. J. Int., 161, 334-346, doi: 10.1111/j.1365-246X.2005.02585.x.
• Vavryčuk, V., 2005. Acoustic axes in weak triclinic anisotropy, Geophys. J. Int., 163, 629-638, doi: 10.1111/j.1365-246X.2005.02762.x.
• Bulant, P., Klimeš, L., Pšenčík, I., Vavryčuk, V., 2004. Comparison of ray methods with the exact solution in the 1-D anisotropic “simplified twisted crystal” model. Stud. Geophys. Geod., 48, 675-688, doi: 10.1023/B:SGEG.0000045476.92151.fe.
• Vavryčuk, V., Hrubcová, A., Brož, M., Málek, J., ALP 2002 Working Group, 2004. Azimuthal variation of Pg velocity in the Moldanubian, Czech Republic: Observations based on a multi-azimuthal common-shot experiment, Tectonophysics, 387/1-4, 189-203, doi 10.1016/j.tecto.2004.06.015.
• Vavryčuk, V., 2004. Approximate conditions for the off-axis triplication in transversely isotropic media, Stud. Geophys. Geod., 48, 187-198, doi: 10.1023/B:SGEG.0000015591.55301.84.
• Vavryčuk, V., 2004. Inversion for anisotropy from non-double-couple components of moment tensors, J. Geophys. Res., 109, B07306, doi:10.1029/2003JB002926.
• Růžek, B, Vavryčuk, V., Hrubcová, P., Zedník, J., 2003. Crustal anisotropy in the Bohemian Massif, Czech Republic: Observations based on Central European Litospheric Experiment Based on Refraction (CELEBRATION) 2000, J. Geophys. Res., 108 (B8), art. No. 2392, doi. 10.1029/2002JB002242.
• Vavryčuk, V., 2003. Generation of triplications in transversely isotropic media, Phys. Rev. B, 68, art. no. 054107, doi: 10.1103/PhysRevB.68.054107.
• Vavryčuk, V., 2003. Parabolic lines and caustics in homogeneous weakly anisotropic solids, Geophys. J. Int., 152, 318-334, doi:10.1046/j.1365-246X.2003.01845.x.
• Vavryčuk, V., 2003. Behaviour of rays near singularities in anisotropic media, Phys. Rev. B, 67, art. no. 054105, doi: 10.1103/PhysRevB.67.054105.
• Moczo, P., Kristek J., Vavryčuk, V., Archuleta, R. J. & Halada, L., 2002. 3D heterogeneous staggered-grid finite-difference modeling of seismic motion with volume harmonic and arithmetic averaging of elastic moduli and densities, Bull. Seism. Soc. Am., 92, 3042-3066.
• Pšenčík, I., Vavryčuk, V., 2002. Approximate relation between the ray vector and wave normal in weakly anisotropic media, Stud. Geophys. Geod., 46, 793-807.
• Šílený, J., Vavryčuk, V., 2002. Can unbiased source be retrieved from anisotropic waveforms by using an isotropic model of the medium?, Tectonophysics, 356, 125-138.
• Vavryčuk, V., 2002. Non-double-couple earthquakes of January 1997 in West Bohemia, Czech Republic: Evidence of tensile faulting, Geophys. J. Int., 149, 364-373.
• Vavryčuk, V., 2002. Asymptotic elastodynamic Green function in the kiss singularity in homogeneous anisotropic solids, Stud. Geophys. Geod., 46, 249-266.
• Vavryčuk, V., 2001. Exact elastodynamic Green functions for simple types of anisotropy derived from higher-order ray theory, Stud. Geophys. Geod., 45, 67-84.
• Vavryčuk, V., 2001. Inversion for parameters of tensile earthquakes, J. Geophys. Res., 106, No. B8, 16.339-16.355.
• Vavryčuk, V., 2001. Ray tracing in anisotropic media with singularities, Geophys. J. Int., 145, 265-276.
• Šílený, J., Vavryčuk, V., 2000. Approximate retrieval of the point source in anisotropic media: numerical modelling by indirect parametrization of the source, Geophys. J. Int., 143, 700-708.
• Vavryčuk, V., 2000. Acoustic and elastodynamic 3-D Green functions for isotropic media with a weak velocity gradient, Wave Motion, 31, 223-236.
• Vavryčuk, V., 2000. Comment on the “Analysis of the state of stress during the 1997 earthquake swarm in Western Bohemia” by A. Slancová and J. Horálek (Studia geoph. et geod., 44 (2000), 272-291), Stud. Geophys. Geod., 44, 614-619.
• Vavryčuk, V., 1999. Weak-contrast R/T coefficients in weakly anisotropic elastic media: P-wave incidence, Geophys. J. Int., 138, 553-562. Erratum, Geophys. J. Int., 140 (2000), 248.
• Vavryčuk, V., 1999. Properties of S waves near a kiss singularity: a comparison of exact and ray solutions, Geophys. J. Int., 138, 581-589.
• Vavryčuk, V., 1999. Applicability of higher-order ray theory for S wave propagation in inhomogeneous weakly anisotropic elastic media, J. Geophys. Res., 104, No. B12, 28.829-28.840.
• Pšenčík, I., Vavryčuk, V., 1998. PP wave displacement R/T coefficients in weakly anisotropic elastic media, Pure and Appl. Geophys., 151, No. 2-4, 699-718.
• Vavryčuk, V., Pšenčík, I., 1998. PP wave reflection coefficients in weakly anisotropic elastic media, Geophysics, 63, 2129-2141.
• Šílený, J., Vavryčuk, V., Baker, C. & Young, P., 1997. Determination of source parameters from noisy waveforms: Inversion of displacement seismograms versus accelerograms. In: Rockbursts and Seismicity in Mines, Gibowicz & Lasocki (eds.), Balkema, Rotterdam, pp. 95-100.
• Vavryčuk, V., 1997. Elastodynamic and elastostatic Green tensors for homogeneous weak transversely isotropic media, Geophys. J. Int., 130, 786-800.
• Vavryčuk, V., Yomogida K., 1996. SH-wave Green tensor for homogeneous transversely isotropic media by higher-order approximations in asymptotic ray theory, Wave Motion, 23, 83-93.
• Vavryčuk, V., 1995. Reply to comments on “Crustal anisotropy from local observations of shear-wave splitting in West Bohemia, Czech Republic” by G.H.R. Bokelmann and J. Kawahara: Can the Hudson crack model describe behavior of real cracks?, Bull. Seism. Soc. Am., 85, No. 2, 661-664.
• Vavryčuk, V., Yomogida, K., 1995. Multipolar elastic fields in homogeneous isotropic media by higher-order ray approximations, Geophys. J. Int., 121, 925-932.
• Vavryčuk, V., 1994. Elastic near-field wave energy radiated by a spherical cavity, Rev. Mod. Phys., 66, No. 1, 241-247.
• Vavryčuk, V., 1994. Energy balance of simple elastodynamic sources, Pure Appl. Geophys., 143, No. 4, 563-586.
• Vavryčuk, V., 1993. Crustal anisotropy from local observations of shear-wave splitting in West Bohemia, Czech Republic, Bull. Seism. Soc. Am., 83, 1420-1441.
• Vavryčuk, V., 1992. Polarization properties of near-field waves in homogeneous isotropic and anisotropic media: numerical modelling, Geophys. J. Int., 110, 180-190.
• Vavryčuk, V., Plešinger, A., 1989. Bilateral recursive restitution of true ground motion from near-field and far-field seismograms, Stud. Geophys. Geod., 33, 133-145.
• Zahradník, J., Janský, J., Vavryčuk, V., Zedník, J., 1989. Focal mechanisms of selected events of the West-Bohemia earthquake swarm 1985/86 constrained by P-wave amplitudes, Rev. de Geofisica, 45, 217-230.
• Vavryčuk, V., 1985. Objective analysis of types of rockburst records, Publ. Inst. Geophys. Pol. Acad. Sc., M-6 (176), 439-450.