Jiri Zahradnik
Professor
of Geophysics
Charles
University in Prague, Faculty of Mathematics and Physics, Department of
Geophysics.
Mail address: KG MFF UK, V Holesovičkách 2,
180 00 Praha 8, Czech Republic
Phone: (+420-2) 2191 2546
E-mail: jz@karel.troja.mff.cuni.cz, jiri.zahradnik@matfyz.cuni.cz
Orcid ID: http://orcid.org/0000-0002-1307-2957
Scopus Author ID: 7005627365 Researcher ID: P-9682-2016
Software:
·
ISOLA codes to calculate centroid moment tensors and
multiple-point source models
The most recent updates (2023): http://geo.mff.cuni.cz/~jz/for_ISOLAnews/
Publications (status March 2023):
Personal data and positions
held:
·
Born June 11,
·
1966-1970: Studies at the Faculty of Mathematics
and Physics,
· 1970: RNDr degree (equivalent to MSc)
· 1976: CSc degree (equivalent to PhD)
· 2001: DrSc degree
· 1970: Research assistant
· 1975: Assistant professor
· 1992: Associate professor
· 1993-2006: Head of the Department of Geophysics
· 2006-2010: Vice-Head of the Department of Geophysics
· 2006- present: Professor of Geophysics
Awards:
2018: The Ernst Mach Honorary Medal for Merit in the Physical Sciences (Czech Academy of Sciences)
2022: Honorary doctorate of the University of Patras, Greece
Papers (after 2005):
These items may be protected by copyright. Use of these
items is limited to non-profit, non-commercial, educational and research
purposes. They are for download, not for redistribution.
2023
·
Zahradník, J., F. Turhan, E. Sokos, and
F. Gallovič (2023). Asperity-like
(segmented) structure of the 6 February 2023 Turkish earthquakes. EarthArXiv,
https://doi.org/10.31223/X5T666. PDF
·
Quintero,
R., J. Zahradník, F. Güendel, D. Campos-Durán, G. E. Alvarado, J. Toral Boutet
(2023). Subduction transition and
relation to upper plate faults revealed by the 2019 Mw 6.0 and 6.2 Costa
Rica-Panama border earthquakes. Tectonophysics 851, 229759, https://doi.org/10.1016/j.tecto.2023.229759.
PDF
·
Turhan,
F., Acarel, D., Plicka, V., Bohnhoff, M., Polat, R., and Zahradník, J. (2022).
Coseismic faulting complexity of
the 2019 Mw5.7 Silivri earthquake in the central Marmara seismic gap, offshore
Istanbul. Seismological Research Letters, https://doi.org/10.1785/0220220111.
PDF
2022
·
Poveda, E., Pedraza, P., Velandia, F.,
Mayorga, E., Plicka, V., Gallovič, F., Zahradník, J. (2022). 2019 Mw 6.0
Mesetas (Colombia) earthquake sequence: Insights from integrating seismic and
morphostructural observations, Earth Space Sci. 9, e2022EA002465, doi: 10.1029/2022EA002465. PDF
·
Zahradnik,
J., Aissaoui, E. M., Bernard, P., Briole, P., Bufferal, S., De Barros, L., Deschamps, A. Panagiotis, E., Evangelidis, C. P., Fountoulakis, I.,
Gallovič, F., Kapetanidis, V., Kaviris, G., Ktenidou,
O.-J., Lambotte, S., Lengline, O., Lyon-Caen,
H., Noble, M., Plicka, V., Rigo, A. Roumelioti, Z.,
Serpetsidaki, A., Sokos, E., Voulgaris, N. (2022). An atypical shallow Mw 5.3, 2021 earthquake in the western Corinth rift
(Greece). Journal of Geophysical Research: Solid Earth, 127,
e2022JB024221. https://doi.org/10.1029/2022JB024221. PDF
·
V.
Plicka, F. Gallovič, J. Zahradník, A. Serpetsidaki, E. Sokos, N. Vavlas, A.
Kiratzi (2022). The 2022 Samos Mw7
earthquake: Source model depicting complexity and rupture directivity, Tectonophysics
843, 229591, https://doi.org/10.1016/j.tecto.2022.229591. PDF PDF-Suppl
· Kostka, F., J. Zahradník, E. Sokos, F. Gallovič (2022). Assessing the role of selected constraints in Bayesian dynamic source inversion: application to the 2017 Mw 6.3 Lesvos earthquake, Geophysical Journal International, 228, 711–727, https://doi.org/10.1093/gji/ggab359. PDF
2021
·
Kaviris,
G., P. Elias, V. Kapetanidis, A. Serpetsidaki, A. Karakonstantis, V. Plicka, L.
De Barros, E. Sokos, I. Kassaras, V. Sakkas,
I. Spingos, S. Lambotte, C. Duverger, O. Lengliné, Ch. Evangelidis, I.
Fountoulakis, O.-J. Ktenidou, F. Gallovič, S. Bufféral, E. Klein, El M.
Aissaoui, O. Scotti, H. Lyon-Caen, A. Rigo, P. Papadimitriou, N. Voulgaris, J.
Zahradnik, A. Deschamps, P. Briole and P. Bernard (2021). The western Gulf of Corinth (Greece) 2020–2021
seismic crisis 1062 and cascading events: First results from the Corinth Rift
Laboratory Network, The Seismic Record, 1 (2), 85–95. doi:
10.1785/0320210021. PDF PDF-Suppl
·
de Melo,
G. W. S, Mitchell, N.C., Zahradník, J., Dias, F., do Nascimento, A. F. (2021). Oceanic seismotectonics from regional
earthquake recordings: The 4-5 degrees N mid-Atlantic ridge. Tectonophysics
819, 229063. https://doi.org/10.1016/j.tecto.2021.229063. PDF
2020
·
Hicks,
S., Okuwaki, R., Steinberg, A., Rychert, C., Harmon, N., Abercrombie, R.,
Bogiaztis, P., Schlaphorst, D., Zahradnik, J., Kendall, J.-M., Yagi, Y.,
Shimizu, K., and Sudhaus, H. (2020). Back-propagating supershear rupture in
the 2016 Mw 7.1 Romanche transform fault earthquake. Nature Geoscience, https://doi.org/10.1038/s41561-020-0619-9. PDF
·
Gallovič,
F., Zahradník, J., Plicka, V., Sokos, E., Evangelidis, Ch., Fountoulakis, I.,
Turhan, F. (2020). Complex rupture dynamics on an immature fault during the
2020 Mw 6.8 Elazig earthquake, Turkey. Commun. Earth Environ, 1, 40, https://doi: 10.1038/s43247-020-00038-x. PDF Supplement
·
Haddad,
A., Alcanie, M., Zahradník, J., Lazar, M., Antunes, V., Gasperini, L., et al.
(2020). Tectonics of the Dead Sea fault driving the July 2018 seismic swarm
in the Sea of Galilee (Lake Kinneret), Israel. J. Geophys. Res.: Solid Earth, 125, e2019JB018963. https://doi.org/10.1029/2019JB018963
PDF
·
Antunes,
V., T. Planes, J. Zahradník, A. Obermann, C. Alvizuri, A.
Carrier, M. Lupi (2020). Seismotectonics and 1D velocity model of the
Greater Geneva Basin, France-Switzerland. Geophys.
J. Int. 221 (3), 2026–2047, https://doi.org/10.1093/gji/ggaa129. PDF
· Čížková, H., J. Zahradník, Junqing Liu, C. R. Bina (2020). Geodynamic subduction models constrained by deep earthquakes beneath the Japan Sea and eastern China. Sci. Rep. 10:5440 https://doi.org/10.1038/s41598-020-62238-x. PDF
·
Liu, J.,
and Zahradník, J. (2020). The 2019 MW 5.7 Changning earthquake, Sichuan
Basin,China: A shallow doublet with different faulting styles. Geophys. Res. Lett., 47, e2019GL085408. https://doi.org/10.1029/2019GL085408
PDF
·
Carvalho,
J. M., L. V. Barros, J. Zahradník, M. G. Von Huelsen, V. M. Ferreira (2020). Earthquake
relocation, focal mechanism and stress field determination in central Brazil. J. South Am. Earth Sci. 97, 102411, 1-12, https://doi.org/10.1016/j.jsames.2019.102411 PDF
·
Sokos,
E., F. Gallovič, C. P. Evangelidis, A. Serpetsidaki, V. Plicka, J. Kostelecký,
and J. Zahradník (2020). The 2018 Mw 6.8 Zakynthos, Greece, Earthquake:
Dominant Strike-Slip Faulting near Subducting Slab, Seism. Res. Lett. 91, 721-732, https://doi.org/10.1785/0220190169 PDF PDF-Suppl
2019
·
Carvalho,
J., L. V. Barros, and J. Zahradnik (2019). Inversion for focal mechanisms
using waveform envelopes and inaccurate velocity models: Examples from Brazil. Bull. Seism. Soc. Am., 109, 138-151, https://doi.org/10.1785/0120180119
PDF
2018
·
Zahradník,
J., E. Sokos, V. Plicka (2018). Zakynthos 25/10/2018, Mw 6.8 earthquake:
Superposition of strike-slip and thrust? Report
to EMSC. PDF
·
Liu J, Li
L., Zahradník J, Sokos E, Liu C., Tian X. (2018). North Korea’s 2017 test
and its nontectonic aftershock. Geophys.
Res. Lett. 45, 3017-3025, https://doi.org/10.1002/2018GL077095 PDF
Supplement
·
Liu, J., L. Li, J. Zahradník, E. Sokos, V. Plicka (2018). Generalized Source Model of the North
Korea Tests 2009–2017. Seis. Res. Lett.
89(6), 2166–2173. doi: https://doi.org/10.1785/0220180106 PDF Supplement
·
Matos,
C., Custódio, S., Batlló, J., Zahradník, J., Arroucau, P., Silveira, G., &
Heimann, S. (2018). An active seismic zone in intraplate west Iberia
inferred from high-resolution geophysical data. J. Geophys. Res. (Solid
Earth), 123, 2885–2907, https://doi.org/10.1002/2017JB015114 PDF
· Bollini, C., N. Sabbione, V. Plicka, J. Zahradník (2018). Low-parametric modeling of the 2015, Mw 8.3 Illapel, Chile earthquake. J. South Am. Earth Sci. 88, 144-156, https://doi.org/10.1016/j.jsames.2018.08.006 PDF
·
Ezzelarab,
M., M. O. Ebraheem, J. Zahradník (2018). A recent Mw 4.3 earthquake proving
activity of a shallow strike-slip fault in the northern part of the Western
Desert, Egypt. Journal of African Earth
Sciences, 139, 275-282. PDF
·
Zahradník,
J. and E. Sokos (2018). Fitting waveform envelopes to derive focal mechanisms
of moderate earthquakes. Seismol. Res.
Lett. 89, 1137-1145. doi:10.1785/0220170161 PDF
·
Zahradník,
J., and E. Sokos (2018). ISOLA code for multiple-point source modeling
–review. In: “Moment Tensor Solutions - A
Useful Tool for Seismotectonics” (S. D'Amico, Ed.), Springer. PDF
·
Turhan,
F., M.D. Cambaz, and J. Zahradník (2018). The significance of the crustal velocity
model in moment tensor solutions: A case study of Yedisu earthquakes. In: “Moment Tensor Solutions - A Useful Tool for
Seismotectonics” (S. D'Amico, Ed.), Springer. PDF
2017
· Sokos, E., and J. Zahradník (2017). Lesvos June 12, 2017, Mw 6.3 event, a quick study of the source. PDF
·
Vackář,
J., J. Burjánek, F. Gallovič, J. Zahradník, and J. Clinton (2017). Bayesian
ISOLA: new tool for automated centroid moment tensor inversion. Geophys. J. Int., 210, 693–705. PDF
· González, O'Leary, V. Clouard, and J. Zahradnik (2017). Moment tensor solutions along the central Lesser Antilles using regional broadband stations. Tectonophysics, 717, 214–225. PDF
·
Zahradník,
J., H. Čížková, C.R. Bina, E. Sokos, J.
Janský, H. Tavera, J. Carvalho (2017). A recent deep earthquake doublet in
light of long-term evolution of Nazca subduction. Sci. Rep., 7, 45153; doi: 10.1038/srep45153 PDF Supplement
2016
·
Křížová, D., Zahradník, J., Kiratzi, A. (2016). Possible
indicator of a strong isotropic earthquake component: Example of two shallow
earthquakes in Greece. Bull. Seism. Soc. Am., 106, 2784-2795. PDF
·
Dias, F.,
J. Zahradník, and M. Assumpcao (2016). Path-specific, dispersion-based
velocity models and moment tensors of moderate events recorded at few distant
stations: Examples from Brazil and Greece. Journal
of South American Earth Sciences, 71, 344-358 PDF Supplement
·
Villegas,
R., Zahradnik, J., Nacif, S., Spagnotto, S., Winocur, D., and Leiva, F. (2016).
Waveform inversion and focal mechanisms of two weak earthquakes in
Cordillera Principal (Argentina) between 35° and 35.5° S, Journal of South American Earth Sciences, 71, 359-369; doi:
10.1016/j.jsames.2015.12.001. PDF
·
Carvalho,
J., L.V. Barros, and J. Zahradník (2016). Focal mechanisms and moment
magnitudes of micro-earthquakes in central Brazil by waveform inversion with
quality assessment and inference of the local stress field. Journal of South American Earth Sciences, 71,
333-343. PDF
·
Triantafyllis, N., E. Sokos, A. Ilias, and J. Zahradník
(2016). Scisola: Automatic Moment
Tensor Solution for SeisComP3. Seismological
Research Letters, 87, 157-163; doi:10.1785/0220150065. PDF
·
Sokos, E., J. Zahradník, F. Gallovič, A. Serpetsidaki, V.
Plicka, and A. Kiratzi (2016). Asperity
break after 12 years: The Mw6.4 2015 Lefkada (Greece) earthquake. Geophys.
Res. Lett., 43, 6137–6145; doi:10.1002/2016GL069427. PDF Supplement
·
Fojtíková, L., M. Kristeková, J.
Málek, E. Sokos, K. Csicsay, J. Zahradník (2016), Quantifying capability of a local seismic
network in terms of locations and focal mechanism solutions of weak
earthquakes. J. of Seismology, 20,
93-106; doi
10.1007/s10950-015-9512-1. PDF
2015
·
Zahradník, J., L. Fojtíková, J. Carvalho, L.V. Barros, E.
Sokos, J. Janský (2015). Compromising
polarity and waveform constraints in focal-mechanism solutions; the Mara Rosa
2010 Mw 4 central
· Vackář J., J. Burjánek, and J. Zahradník (2015). Automated detection of disturbances in seismic records; MouseTrap code. Seism. Res. Letters, 86, 442-450. PDF
·
Sokos, E., A. Kiratzi, F. Gallovič, J. Zahradník, A.
Serpetsidaki, V. Plicka, J. Janský, J. Kostelecký, G.-A. Tselentis (2015). Rupture process of the 2014
· Zahradník, J., J. Janský, V. Plicka (2015). Analysis of the source scanning algorithm with a new P-wave picker. J Seismol 19, 423–441. PDF and Animations
2014
· Fojtíková, L., and J. Zahradník (2014). A new strategy for weak events in sparse networks: the first-motion polarity solutions constrained by single-station waveform inversion. Seism. Res. Letters 85, 1265-1274; doi: 10.1785/0220140072. PDF
·
Quintero, R., J. Zahradník, and E. Sokos (2014). Near-regional CMT and multiple-point source solution of
the September 5, 2012,
·
Plicka, V., and J. Zahradnik (2014). Inverting full waveforms into 1D seismic
velocity model of the upper crust by neighborhood algorithm -
·
Zahradnik, J.,
and E. Sokos (2014). The Mw 7.1 Van,
·
Vackář,
J., J. Zahradník, and E. Sokos (2014). Strong fast long-period waves in the
Efpalio 2010 earthquake records: explanation in terms of leaking modes. J. of Seismology 18, 81-91. PDF supp1 supp2
2013
·
Gallovič,
F., G. Ameri, J. Zahradník, J. Janský, V. Plicka, E. Sokos, A. Askan, and M.
Pakzad (2013). Fault Process and Broadband Ground-Motion Simulations of the
23 October 2011 Van (
·
Křížová,
D., J. Zahradník, and A. Kiratzi (2013). Resolvability of isotropic
component in regional seismic moment tensor inversion. Bull. Seism. Soc. Am. 103, 2460-2473. PDF
·
Sokos, E. and J. Zahradník (2013). Evaluating centroid moment tensor
uncertainty in new version of ISOLA
software. Seismol. Res. Letters 84,
656-665. PDF
2012 and before
·
Zahradník,
J. and S. Custódio (2012). Moment tensor resolvability: Application to
·
Gallovič,
F. and J. Zahradník (2012). Complexity of the Mw6.3 2009
·
Sokos, E., J. Zahradník, A. Kiratzi, J.
Janský, F. Gallovič, O. Novotný, J. Kostelecký, A. Serpetsidaki, and G-A.
Tselentis (2012). The January 2010
Efpalio earthquake sequence in the western
· Janský, J., O. Novotný, V. Plicka, J. Zahradník, and E. Sokos (2012). Earthquake location from P-arrival times only: problems and some solutions. Studia Geophysica et Geodaetica 56, 553-566. PDF
·
Zahradník,
J., and E. Sokos (2011). Multiple-point
source solution of the Mw7.2 Van earthquake, October 23, 2011,
·
Zahradnik, J., Gallovic,
F., Sokos, E., and Tselentis, G-A (2011). Preliminary slip model of M9
Tohoku earthquake from strong-motion stations in
·
Gallovič,
F., Zahradník, J. (2011). Toward understanding slip-inversion
uncertainty and artifacts II: singular value analysis. J. Geophys. Res., 116,
B02309. PDF and
Supplemental material. PDF
·
Zahradník, J., Gallovič, F. (2010): Toward understanding slip-inversion uncertainty
and artifacts. J. Geophys. Res. 115, B09310, 2010. PDF
·
Zahradník,
J., Plešinger, A. (2010). Toward understanding subtle instrumentation
effects associated with weak seismic events in the near field. Bull. Seism. Soc. Am. 100, 59-73. PDF
·
Serpetsidaki, A., Sokos, E., Tselentis, G.-A., Zahradnik,
J. (2010). Seismic sequence near
·
Gallovič,
F., Zahradník, J., Křížová, D., Plicka, V., Sokos, E., Serpetsidaki, A.,
Tselentis, G-A. (2009). From Earthquake Centroid to Spatial-Temporal
Rupture Evolution: Mw 6.3 Movri Mountain earthquake, June 8, 2008,
·
Janský,
J,, Zahradník, J., Plicka, V. (2009).
Efficiency of individual CRL stations in seismic monitoring of the
·
Janský,
J., Zahradník, J., Plicka, V. (2009). Shallow
earthquakes: shallower than expected? Stud.
Geophys. Geod., 53 (2009), 261-268 (a non-reviewed article). PDF
· Adamová, P., Sokos E., Zahradník, J. (2009). Problematic non-double-couple mechanism of the Amfilochia Mw5 earthquake, Western Greece, J. Seismology., 13, 1-12. PDF
·
Zahradník,
J., Gallovič, F., Sokos, E.,
Serpetsidaki, A., Tselentis, G-A. (2008).
Quick fault-plane identification by a geometrical method: application to the
Mw6.2 Leonidio earthquake, January 6, 2008,
· Zahradník, J., Sokos, E., Tselentis, G.-A., Martakis, N. (2008). Non-double-couple mechanism of moderate earthquakes near Zakynthos, April 2006, explanation in terms of complexity, Geophys. Prosp. 56, 341-356. PDF
· Zahradník J., Janský J., Plicka V. (2008). Detailed waveform inversion for moment tensors of M~4 events; examples from the Corinth Gulf, Greece, Bull. Seism. Soc. Am., 98, 2756-2771. PDF
· Sokos, E. Zahradník, J., (2008). ISOLA a Fortran code and a Matlab GUI to perform multiple-point source inversion of seismic data, Computers and Geosciences, 34, 967-977. PDF
· Burjánek, J., Zahradník, J. (2007). Dynamic stress field of a kinematic earthquake source model with k-squared slip distribution, Geophys. J. Int. 171, 1082-1097. PDF
·
Bernard
P., Lyon-Caen H., Briole P., Deschamps A., Boudin F., Makropoulos K.,
Papadimitriou P., Lemeille F., Patau L., Billiris J., Paradissis D., Papazissi
K., Castarède H., Charade O., Nercessian A., Avallone A., Pacchiani F.,
Zahradnik J., Sacks S., Linde A. (2006). Seismicity, deformation and
seismic hazard in the western rift of
· Zahradník, J., Plešinger, A., (2005). Long-period pulses in broadband records of near earthquakes Bul. Seism. Soc. Am., Vol. 95, No. 5, 1928-1939. PDF
·
Zahradník,
J., Serpetsidaki, A., Sokos, E., Tselentis, G-A., (2005). Iterative
deconvolution of regional waveforms and a double-event interpretation of the
2003 Lefkada earthquake,
Visits abroad:
· Long: Soviet Union 1976, Peru 1982, Canada 1984, 1989, 1991
· Short: Sweden, Costa Rica, Colombia, Brazil, Greece, Cuba
Membership:
· Member of the Scientific Council of the Geophys. Inst. Acad. Sci. Czech Rep. (1993-2001)
· Member of the Institution Council of the Geophys. Inst. Acad. Sci. Czech Rep. (2008-2016)
·
Member of the Evaluation panel P210 of the
· Member of the Scientific Council of the Faculty of Mathematics and Physics (2005-2012)
· Remote referee of the European Research Council (2007-2010)
· Vice-President of the European Seismological Commission (2004-2006)
· Journal of Seismology (associate editor 2002-2017, editorial board member 2017-present)
Teaching in Prague:
· In Prague 1970-2002: Introduction to geophysics. Internal constitution of the Earth. Numerical methods in geophysics. Seismology. Physics of the seismic source. Numerical prediction of earthquake ground motions. Physics of the Earth (for the Faculty of Science). Seismic seminar.
· In Prague 2002-present: Seismology I and II, Seismic seminar
Teaching abroad (invited):
Research interests:
Numerical methods in seismic wave propagation (the finite-difference method). Seismic site effects, international blind prediction experiments. Seismic source parameter retrieval. Modeling finite-extent seismic sources. Strong-ground motion simulation. Operation of seismic stations and data analysis.
Research projects:
My former students:
Ph.D.: J. Vackář 2018, D. Křížová 2017, A. Caserta (Italy) 2011, J. Burjánek
2007, V. Plicka 2003, I. Opršal 2001
Ph.D. (co-supervised): J. M. de Carvalho (Brazil) 2019
M.Sc.: J. Vackář
2012, D. Červinková 2008, P. Adamová 2006, K. Řezba 2005, J. Burjánek 2002, O.
Smrž 2001, P.Kalianko 1999, I. Opršal 1996, V. Plicka 1995, Z. Schenková 1994,
J. Chroust 1993, T. Semerák 1992,
M. Staša 1990, J. Fidler 1989, O. Tauferová, 1987, P. Roušar 1987, J. Málek 1986, P. Kolář 1986, O.
Čadek 1984, I. Hrkal 1984, L. Holub 1983, J. Kupka 1983, V. Barták 1982, P.
Čenčík 1977, V. Pech 1975, P. Včelák 1975.
B.Sc.: J. Vackář 2010, D. Červinková 2006. Years of graduation are listed.