Dr. István Bondár

Google Scholar: István Bondár ORCID: 0000-0002-4892-1074

Education

2016 DSc Geophysics, Hungarian Academy of Sciences, Budapest, Hungary
1991 PhD Geophysics, Eötvös Loránd University, Budapest, Hungary
1982 MSc Geophysics, Eötvös Loránd University, Budapest, Hungary

Research interests

iLoc
earthquake location
nuclear explosion monitoring research
infrasound
global and regional seismicity
inversion methods

Employment history

Founder, Seismic Location Services, Lagos, Portugal, 2024-
Scientific Advisor, Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Budapest, Hungary, 2021-2024
Senior Scientist, Research Centre for Astronomy and Earth Sciences, Geodetic and Geophysical Institute, Kövesligethy Radó Seismological Observatory, Budapest, Hungary, 2014-2021
Senior Seismologist, International Seismological Centre, Thatcham, UK, 2008-2014
Senior Scientist, Science Applications International Corporation, McLean, VA, USA, 2000-2008
Seismic-Acoustic Officer, Comprehensive Test-Ban Treaty Organization, Vienna, Austria, 1998-2000
Visiting Scientist, Science Applications International Corporation, Center for Monitoring Research, Arlington, VA, USA, 1996-1998
Visiting Scientist, International Centre of Theoretical Physics, Trieste, Italy, 1993-1996
Senior Seismologist, Seismological Observatory of the Hungarian Academy of Sciences, Budapest, Hungary, 1992-2000 (sabbatical 1996-2000)
Research Scientist, Department of Geophysics, Eötvös Loránd University, Budapest, Hungary, 1987-1992
Research Scientist, Computer and Automation Research Institute of the Hungarian Academy of Sciences, Budapest, Hungary, 1985-1987
Geophysicist, Geodetic and Geotechnical Institute, Budapest, Hungary, 1982-1985

Selected publications

Godoladze, T., R. Gök, T. Onur, I. Gunia, M. Dzmanashvili, G. Boichenko, A. Buzaladze, I. Bondár, L. Ratiani, T. Rostomashvili, J. Nabelek, Z. Javakhishvili, G. Yetirmishli, E. Sandvol, F.T. Kadirioğlu, A. Chiang, Compilation of a Comprehensive Earthquake Catalog and Relocations in the Caucasus Region, Seismol. Res. Lett., 95, 1066–1081, https://doi.org/10.1785/0220230206, 2024.
Bondár, I., T. Godoladze, E. Cowgill, G. Yetirmishli, S.C. Myers, I. Gunia, A. Buzaladze, B. Czecze, T. Onur, R. Gök, A. Chiang, Relocation of the Seismicity of the Caucasus Region, Bull. Seism. Soc. Am., 114, 873-881, https://doi.org/10.1785/0120230155, 2023.
Pásztor, M., C. Czanik, I. Bondár, A Single Array Approach for Infrasound Signal Discrimination from Quarry Blasts via Machine Learning, Remote Sens., 15, 1657, https://doi.org/10.3390/rs15061657, 2023.
Finazzi, F., I. Bondár, R. Bossu, R. Steed, Probabilistic Framework for Modeling the Detection Capability of Smartphone Networks in Earthquake Early Warning, Seismol. Res. Lett., 93, 3291–3307, https://doi.org/10.1785/0220220213, 2022.
Bondár I., T. Šindelářová, D. Ghica, U. Mitterbauer, A. Liashchuk, J. Baše, J. Chum, C. Czanik, C. Ionescu, C. Neagoe, M. Pásztor, A. Le Pichon, Central and Eastern European Infrasound Network: Contribution to Infrasound Monitoring, Geophys. J. Int., 230, 565-579, https://doi.org/10.1093/gji/ggac066, 2022.
Bossu R., F. Finazzi, R. Steed, L. Fallou, I. Bondár, “Shaking in 5 Seconds!”—Performance and User Appreciation Assessment of the Earthquake Network Smartphone-Based Public Earthquake Early Warning System, Seismol. Res. Lett., 93, 137–148, https://doi.org/10.1785/0220210180, 2022.
Kereszturi A., V. Barta., I. Bondár, C. Czanik, A. Igaz, P. Mónus, D. Rezes, L. Szabados, B.D. Pál, Review of synergic meteor observations: linking the results from cameras, ionosondes, infrasound and seismic detectors, Monthly Notices of the Royal Astronomical Society, 506, 3629-3640, https://doi.org/10.1093/mnras/stab1918, 2021.
Kalmár, D., G. Hetényi, A. Balázs, I. Bondár, AlpArray Working Group, Crustal thinning from orogen to back-arc basin: the structure of the Pannonian Basin region revealed by P-to-S converted seismic waves, JGR Solid Earth, 126, e2020JB021309, https://doi.org/10.1029/2020JB021309, 2021.
Czanik, C., M. Kiszely, P. Mónus, B. Süle, and I. Bondár, Identification of Quarry Blasts Aided by Infrasound Data, Pure appl. Geophys., 178, 2287–2300, https://doi.org/10.1007/s00024-021-02748-5, 2021.
Le Bras R., N. Arora, N. Kushida, P. Mialle, I. Bondár, E. Tomuta, F.K. Alamneh, P. Feitio, M. Villarroel, B. Vera, A. Sudakov, S. Laban, S. Nippress, D. Bowers, S. Russell and T. Taylor, NET-VISA from Cradle to Adulthood. A Machine-Learning Tool for Seismo-Acoustic Automatic Association, Pure Appl. Geophys., 178, 2437-2458, https://doi.org/10.1007/s00024-020-02508-x, 2021.
Kiszely, M., B. Süle, P. Mónus, and I. Bondár, Discrimination between local earthquakes and quarry blasts in the Vértes Mountains, Hungary. Acta Geod. Geophys., 56, 523–537, https://doi.org/10.1007/s40328-021-00346-4, 2021.
Lenhardt, W.A., D. Pesaresi, M. Živčić, G. Costa, T. Fiket, I. Bondár, L. Duni, P. Spacek, L. Dimitrova, C. Neagoe, D. Malytskyy, K. Csicsay, L. Tóth, L. Fojtikova, Improving Cross‐Border Seismic Research: The Central and Eastern Europe Earthquake Research Network (CE3RN), Seismol. Res. Lett., 92, 1522–1530, https://doi.org/10.1785/0220200374, 2021.
Bondár I., E.R. Engdahl, Seismological networks, in H.K. Gupta (ed.), Encyclopedia of Solid Earth Geophysics, Encyclopedia of Earth Sciences Series, https://doi.org/10.1007/978-3-030-58631-7, Springer Cham, https://doi.org/10.1007/978-3-030-58631-7_16, 2021.
Koch, K., Pilger, C., Czanik, C., and Bondár, I., The 12 December 2017 Baumgarten Gas Hub Explosion: A Case Study on Understanding the Occurrence of a Large Infrasound Azimuth Residual and a Lack of Seismic Observations, Pure Appl. Geophys., 177, 4957–4970, https://doi.org/10.1007/s00024-020-02549-2, 2020.
Bondár I., R. Steed, J. Roch, R. Bossu, A. Heinloo, J. Saul and A. Strollo, Accurate locations of felt earthquakes using crowdsource detections, Front. Earth Sci., 8, 272, https://doi.org/10.3389/feart.2020.00272, 2020.
Onur, T., R. Gök, T. Godoladze, I. Gunia, G. Boichenko, A. Buzaladze, N. Tumanova, M. Dzmanashvili, L. Sukhishvili, Z. Javakishvili, E. Cowgill, I. Bondár and G. Yetirmishli, Probabilistic Seismic Hazard Assessment Using Legacy Data in Georgia, Seismol. Res. Lett., 91, 1500–1517, https://doi.org/10.1785/0220190331, 2020.
Kereszturi A., V. Barta., I. Bondár, Cs. Czanik, A. Igaz, P. Mónus, B. Pál, Connecting ionospheric, optical, infrasound and seismic data from meteors in Hungary, WGN, J. Int. Meteor Org., 48, 188-192, 2020.
Steed, R.J., A. Fuenzalida, R. Bossu, I. Bondár, A. Heinloo, A. Dupont, J. Saul and A. Strollo, Crowdsourcing triggers rapid, reliable earthquake locations, Science Advances, 5, eaau9824, https://doi.org/10.1126/sciadv.aau9824, 2019.
Kalmár, D., G. Hetényi, I. Bondár, Moho depth analysis of the eastern Pannonian Basin and the Southern Carpathians from receiver functions, J. Seismol., 23, 967-982, https://doi.org/10.1007/s10950-019-09847-w, 2019.
Czecze, B., I. Bondár, Hierarchical cluster analysis and multiple event relocation of seismic event clusters in Hungary between 2000 and 2016, J. Seismol., 23, 1313-1326, https://doi.org/10.1007/s10950-019-09868-5, 2019.
Bondár, I. P. Mónus, Cs. Czanik, M. Kiszely, Z. Gráczer, Z. Wéber, and the AlpArrayWorking Group, Relocation of Seismicity in the Pannonian Basin Using a Global 3D Velocity Model, Seismol. Res. Lett., 89, 2284-2293, https://doi.org/10.1785/0220180143, 2018.
Hetényi, Gy., I. Molinari, J. Clinton, G. Bokelmann, I. Bondár, W.C. Crawford, J-X. Dessa, C. Doubre, W. Friederich, F. Fuchs, D. Giardini, Z. Gráczer, M.R. Handy, M. Herak, Y. Jia, E. Kissling, H. Kopp, M. Korn, L. Margheriti, T. Meier, M. Mucciarelli, A. Paul, D. Pesaresi, C. Piromallo, T. Plenefisch, J. Plomerová, J. Ritter, G. Rümpker, V. Sipka, D. Spallarossa, C. Thomas, F. Tilmann, J Wassermann, M. Weber, Z. Wéber, V. Wesztergom, M. Zivcic, AlpArray Seismic Network Team, AlpArray OBS Cruise Crew, AlpArray Working Group, The AlpArray Seismic Network: A Large-Scale European Experiment to Image the Alpine Orogen, Surv. Geophys., 39, 1009-1033, https://doi.org/10.1007/s10712-018-9472-4, 2018.
Békési, E., B. Süle, L. Lenkey, Á. Lenkey-Bogér and I. Bondár, Double-difference relocation of the 29 January 2011 ML 4.5 Oroszlány earthquake and its aftershocks and its relevance to the rheology of the lithosphere and geothermal prospectivity, Acta Geod. Geophys., 52, 229-242, https://doi.org/10.1007/s40328-017-0195-7, 2017.
Letort, J., J. Guilbert, F. Cotton, I. Bondár, Y. Cano, and J. Vergoz, A new, improved and fully automatic method for teleseismic depth estimation of moderate earthquakes (4.5 < M < 5.5): application to the Guerrero subduction zone (Mexico), Geophys. J. Int., https://doi.org/10.1093/gji/ggv093, 201, 1834-1848, 2015.
Storchak, D.A., Di Giacomo, D., E.R. Engdahl, J. Harris, I. Bondár, W.H.K. Lee, P. Bormann, and A. Villasenor, The ISC-GEM global instrumental earthquake catalogue (1900-2009): Introduction, Phys. Earth. Planet. Int., https://doi.org/10.1016/j.pepi.2014.06.009, 239, 48-63, 2015.
Bondár, I., E.R. Engdahl, A. Villasenor, J.Harris and D. Storchak, ISC-GEM: Global instrumental earthquake catalogue (1900-2009), II. Location and seismicity patterns, Phys. Earth. Planet. Int., https://doi.org/10.1016/j.pepi.2014.06.002, 239, 2-13, 2015.
Di Giacomo, D., I. Bondár, I., D.A. Storchak, E.R. Engdahl, P. Bormann and J.Harris, ISC-GEM: Global instrumental earthquake catalogue (1900-2009), III. Re-computed Ms and mb, proxy Mw, final magnitude composition and completeness assessment, Phys. Earth. Planet. Int., https://doi.org/10.1016/j.pepi.2014.06.005, 239, 33-47, 2015.
Bondár, I., S.C. Myers and E.R. Engdahl, Earthquake location, M. Beer, I.A. Kougioumtzoglou, E. Patelli, I.S.K. Au (eds.) Springer Encyclopedia of Earthquake Engineering, https://doi.org/10.1007/978-3-642-36197-5_184-1, Springer Verlag, Berlin, Heidelberg, 2014.
Di Giacomo, D., D.A. Storchak, N. Safranova, P. Ozgo, J. Harris, R. Verney and I. Bondár, A new ISC service: The bibliography of seismic events, Seismol. Res. Lett., 85, 354-360, https://doi.org/10.1785/0220130143, 2014.
Storchak, D.A. D. Di Giacomo, I. Bondár, I., E.R. Engdahl, J. Harris, W.H.K. Lee, A Villasenor and P. Bormann, Public release of the ISC-GEM global instrumental earthquake catalogue (1900-2009), Seismol. Res. Lett., 84, 810-815, https://doi.org/10.1785/0220130034, 2013.
Bondár, I., Identification and collection of ground truth events, Bormann, P. (Ed.), New Manual of Seismological Observatory Practice (NMSOP-2), https://doi.org/10.2312/GFZ.NMSOP-2_IS_8.6, IASPEI, GFZ German Research Centre for Geosciences, Potsdam; http://nmsop.gfz-potsdam.de; https://doi.org/10.2312/GFZ.NMSOP-2, 2012.
Engdahl, E.R. and I. Bondár, Seismological networks, H. Gupta (ed), Encyclopedia of Solid Earth Geophysics, Encyclopedia of Earth Sciences Series, Part 16, 1324-1334, doi 10.1007/978-90-481-8702-7_16, Springer Science + Business Media B.V., 2011.
Bondár, I., and D. Storchak, Improved location procedures at the International Seismological Centre, Geophys. J. Int., 186, 1220-1244, https://doi.org/10.1111/j.1365-246X.2011.05107.x, 2011.
Bennett, T.J., V. Oancea, B.W. Barker, Y-L. Kung, M. Bahavar, B.C. Kohl, J.R. Murphy and I.K. Bondár, The Nuclear Explosion Database (NEDB): A new database and web site for accessing nuclear explosion source information and waveforms, Seismol. Res. Lett., 81, 12-25, https://doi.org/10.1785/gssrl.81.1.12, 2010.
Bondár, I. and K. McLaughlin, A new ground truth data set for seismic studies, Seismol. Res. Lett., 80, 465-472, https://doi.org/10.1785/gssrl.80.3.465, 2009.
Bondár, I. and K. McLaughlin, Seismic location bias and uncertainty in the presence of correlated and non-Gaussian travel-time errors, Bull. Seism. Soc. Am., 99, 172-193, https://doi.org/10.1785/0120080922, 2009.
Bondár, I., E. Bergman, E.R. Engdahl, B. Kohl, Y-L. Kung, and K. McLaughlin, A hybrid multiple event location technique to obtain ground truth event locations, Geophys. J. Int., 175, 185-201, https://doi.org/10.1111/j.1365-246X.2008.03867.x, 2008.
Bondár, I., S.C. Myers, E.R. Engdahl and E.A. Bergman, Epicentre accuracy based on seismic network criteria, Geophys. J. Int., 156, 483-496, https://doi.org/10.1111/j.1365-246X.2004.02070.x, 2004.
Bondár, I., E.R. Engdahl, X. Yang, H.A.A. Ghalib, A. Hofstetter, V. Kirichenko, R. Wagner, I. Gupta, G. Ekström, E. Bergman, H. Israelsson and K. McLaughlin, Collection of a reference event set for regional and teleseismic location calibration, Bull. Seism. Soc. Am., 94, 1528-1545, https://doi.org/10.1785/012003128, 2004.
Yang, X., I. Bondár, J. Bhattachryya, M. Ritzwoller, N. Shapiro, M. Antolik, G. Ekström, H. Israelsson and K. McLaughlin, Validation of regional and teleseismic travel-time models by relocating GT events, Bull. Seism. Soc. Am., 94, 897-919, https://doi.org/10.1785/0120030148, 2004.
Yang, X., Bondár, I., McLaughlin, K., North, R.G. and Nagy, W., Path-dependent regional phase travel-time corrections for the International Monitoring System in North America, Bull. Seism. Soc. Am., 91, 1831-1850, https://doi.org/10.1785/0120000100, 2001.
Bondár, I., Yang, X., North, R.G. and Romney, C., Location Calibration Data for CTBT Monitoring at the Prototype International Data Center, Pure Appl. Geophys. 158, 19-34, https://doi.org/10.1007/PL00001155, 2001.
Yang, X., Bondár, I., McLaughlin K. and North R.G., Source Specific Station Corrections for regional phases at Fennoscandian stations, Pure Appl. Geophys. 158, 35-57, https://doi.org/10.1007/978-3-0348-8250-7_5, 2001.
Zivcic, M., I. Bondár and G.F. Panza, Upper crustal velocity structure in Slovenia from Rayleigh wave dispersion, Pure Appl. Geophys., 157, 131-146, https://doi.org/10.1007/978-3-0348-8415-0_8, 2000.
Bondár, I. and North, R.G., Development of Calibration Techniques for Potential use by the CTBT International Monitoring System, Phys. Earth Planet. Int., 113, 11-24, https://doi.org/10.1016/S0031-9201(99)00033-3, 1999.
Bondár, I. and North, R.G., and Beall, G., Teleseismic slowness-azimuth station corrections for the International Monitoring System seismic network, Bull. Seism. Soc. Am., 89, 989-1003, 1999.
Dufumier, H., Michelini, A., Du, Z., Bondár, I., Sileny, J., Mao, W., Kravanja, S. and Panza, G.F., Regional Structure Modeling and Source Inversion for the 1992 Roermond Earthquake, J. Seismology, 1, 321-340, https://doi.org/10.1023/A:1009779025108, 1997.
Bondár, I., Seismic Horizon Detection Using Image Processing Algorithms, Geophysical Prospecting, 40, 785-800, https://doi.org/10.1111/j.1365-2478.1992.tb00552.x, 1992.