Seismik s.r.o. - Passive Seismic Services

• 2024 - President of Seismik Leo Eisner was awarded Honorary membership of EAGE, more about the award at https://eage.org/about_eage/award-winners/#award-honorary
• 2023 - Seismik's president Leo Eisner was nominated SEG Honorary Lecturer for Europe: https://wiki.seg.org/wiki/Leo_Eisner
• Seismik's solution "Distinguish between natural and induced seismicity" was nominated as a finalist in the Czech innovation 2012 contest, in the category Promising innovation.

Do not hesitate to contact us if you are unable to access our papers

• Kalinichenko, O., L. Eisner, F. Stanek, U. Bin Waheed, S. Hanafy, Z. Jechumtálová; 2025; Signal‐to‐Noise Ratio Models for Shallow Borehole Seismic Monitoring. Seismological Research Letters; https://doi.org/10.1785/0220250030

• Eisner, L.; J. Verdon; S.C. Williams-Stroud; Z. Jechumtálová; U.b. Waheed; T. Finkbeiner 2025:  Seismic monitoring for CO2 sequestration – a new advanced strategy. Geophysical Prospecting, Research Note, 73: e70042. https://doi.org/10.1111/1365-2478.70042, link

• Jechumtálová Z., D. Anikiev and L. Eisner, 2025, Sensitivity for Monitoring Array of Distributed Acoustic Sensors (DAS) in a Vertical Borehole, First Break, Volume 43, Issue 4, p. 35 – 37, DOI: https://doi.org/10.3997/1365-2397.fb2025026

• Simeonova G., L. Eisner, U. bin Waheed, A. Savvaidis, S. Hanafy, 2025, S-wave velocity model of Texas based on joint inversion of interferometry and P-wave receiver functions, Geophysical Prospecting, 73: e70035 https://doi.org/10.1111/1365-2478.70035

• Guo T., D. Alexandrov, L. Eisner, Z. Jechumtalova, S.C. Williams-Stroud, U. Bin Waheed, and V. Vilarrasa, 2025, Constraints on Stress Tensor from Microseismicity at Decatur: lessons learned from observed microseismicity at Decatur. Submitted to Copernicus, https://doi.org/10.5194/egusphere-2025-1384

• Jechumtálová Z.; L. Eisner; F. Buchem, T. Finkbeiner; 2025: Optimization of passive seismic monitoring network for CO2 sequestration in Saudi Arabia, International Journal of Greenhouse Gas Control, 146, 104416, https://doi.org/10.1016/j.ijggc.2025.104416

• Verdon J.P., L. Eisner; An Empirically Constrained Forecasting Strategy for Induced Earthquake Magnitudes Using Extreme Value Theory. Seismological Research Letters 2024;; 95 (6): 3278–3294. doi: https://doi.org/10.1785/0220240061, link

• Cao N-T., L. Eisner, Z. Jechumtálová, J. Verdon, U. bin Waheed, 2024: Upper Limit magnitudes for induced seismicity in energy industries, Geophysical Prospecting, DOI: 10.1111/1365-2478.13553.

• Jechumtálová Z., L. Eisner and T. Finkbeiner, 2024, How Large should Microseismic Monitoring Networks be for CO2 Injection?, First Break, Volume 42, Issue 4, Apr 2024, p. 49 – 54, DOI: https://doi.org/10.3997/1365-2397.fb2024031.

• Kolář, P., U. bin Waheed, L. Eisner, P. Matoušek, 2023, Arrival times by Recurrent Neural Network for induced seismic events from a permanent network. Frontiers, Front. Big Data, Sec. Machine Learning and Artificial Intelligence, Volume 6, DOI | 10.3389/fdata.2023.1174478.

• Anikiev, D., C. Birnie, U. bin Waheed, T. Alkhalifah, C. Gu, D.J. Verschuur, L. Eisner, 2023, Machine learning in microseismic monitoring, Earth-Science Reviews, 104371, ISSN 0012-8252, DOI 10.1016/j.earscirev.2023.104371.

• Anikiev D, Waheed Ub, Staněk F, Alexandrov D, Hao Q, Iqbal N and Eisner L (2022), Traveltime-based microseismic event location using artificial neural network. Front. Earth Sci., Sec. Solid Earth Geophysics, https://doi.org/10.3389/feart.2022.1046258.

• Vinard, N.A., Drijkoningen, G.G., Verschuur, D.J., Alexandrov, D. and Eisner, L. (2022), Localizing weak microseismic events using transfer learning with a deep neural network. Geophysical Prospecting. https://doi.org/10.1111/1365-2478.13238

• Shaheen, A., Waheed, U., Fehler, M., Sokol, L., Hanafy, S. (2021). Deep learning for low-magnitude earthquake detection on a multi-level sensor network. Sensors, accepted, https://doi.org/10.3390/s21238080

• Eisner L., Jechumtálová Z., Woźniakowska P., 2021. Revisiting seismicity near the town of Azle, Texas to show evidence of induced seismicity. First Break, 39 (2), 83–86, doi: 10.3997/1365-2397.fb2021015.

• Alexandrov D., Waheed U., Eisner L., 2021. Microseismic location error due to eikonal traveltime calculation. Sci., 11 (3), 982, doi: 10.3390/app11030982.

• Alexandrov D., Eisner L., Waheed U., Kaka S.I., Greenhalgh S.A., 2020. Detection, location, and source mechanism determination with large noise variations in surface microseismic monitoring. Geophysics, 85 (6), KS197–KS206, doi: 10.1190/geo2019-0841.1.

• Williams‐Stroud S., Bauer R., Leetaru H., Oye V., Staněk F., Greenberg S., Langet N., 2020. Analysis of microseismicity and reactivated fault size to assess the potential for felt events by CO2 injection in the Illinois Basin. Bull. Seism. Soc. Am., 110 (5), 2188-2204, doi: 10.1785/0120200112.

• Alexandrov D., Eisner L., Waheed U., Kaka S.I., Greenhalgh S.A., 2020. Normal faulting activated by hydraulic fracturing: A case study from the Barnett Shale, Fort Worth Basin. Leading Edge, 39 (3), 204–211, doi: 10.1190/tle39030204.1.

• Cao N-T., Eisner L., Jechumtálová Z., 2020. Next record breaking magnitude for injection induced seismicity. First Break, 38 (2), 53–57, doi: 10.3997/1365-2397.fb2020010.

• Lei L.,Tan J., Schwarz B., Staněk F., Poiata N., Shi P., Diekmann L., Eisner L., Gajewski D., 2020. Recent advances and challenges of waveform-based seismic location methods at multiple scales. Reviews of Geophysics, 58, e2019RG000667, doi: 10.1029/2019rg000667.

• Jechumtálová Z., Anikiev D., Eisner L., 2019. Selecting seismically safe formations for salt water disposal in the Delaware basin. First Break, 37 (6), 47-49, doi: 10.3997/1365-2397.n0032.

• Drwiła M., M. Wcisło, D. Anikiev, L. Eisner, and R. Keller, (2019), "Passive seismic measurement of seismic attenuation in Delaware Basin," The Leading Edge 38: 138–143. https://doi.org/10.1190/tle38020138.1

• Miłosz Wcisło, Leo Eisner, Jiří Málek, Tomáš Fischer, Josef Vlček, Gunther Kletetschka, 2020: Reply to “Comment on ‘Attenuation in West Bohemia: Evidence of High Attenuation in the Nový Kostel Focal Zone and Temporal Change Consistent with CO2 Degassing’ by M. Wcisło, L. Eisner, J. Málek, T. Fischer, J. Vlček, and G. Kletetschka” by Morozov., Bulletin of Seismological Society of America; 110 (1): 375, https://doi.org/10.1785/0120190100

• Wcisło M., Eisner L., 2019. Fast determination of attenuation from microseismicity for large datasets. Acta Geodyn. Geomater., 16 (3), 257–268, doi: 10.13168/agg.2019.0022.

• Wandycz P., Święch E., Eisner L., Pasternacki A., Anikiev D., Maćkowski T., 2018. Estimating microseismic detectability of the surface-monitoring network using downhole-monitoring array. Interpretation, 6 (3), doi: 10.1190/INT-2017-0198.1.

• Jechumtálová Z., Chu F., Yu G., Procházka J., 2018. Consistency of stress state, locations, and source mechanisms of events induced by hydraulic fracturing: downhole monitoring. Prospecting, 66, 1315-1326, doi: 10.1111/1365-2478.12651.

• Eisner L., Staněk F.,2018. Microseismic data interpretation — what do we need to measure first? First Break, 36 (2), 55-58, doi: 10.3997/1365-2397.n0069.

• Wcisło M., Stabile T.A., Telesca L., Eisner L., 2018. Variations of attenuation and VP/VS ratio in the vicinity of wastewater injection: A case study of Costa Molina 2 well (High Agri Valley, Italy). Geophysics, 83 (2), doi: 1190/geo2017-0123.1.

• McClellan J. H., L. Eisner, E. Liu, N. Iqbal, A. A. Al-Shuhail, S. Kaka, 2017, Array processing in microseismic monitoring, IEEE Signal Processing Magazine.

• Trojanowski J., Eisner L., 2017. Comparison of migration-based location and detection methods for microseismic events. Prospecting, 65 (1), 47-63, doi: 10.1111/1365-2478.12366.

• Staněk, F., & Eisner, L. 2017. Seismicity induced by hydraulic fracturing in shales: A bedding plane slip model. Journal of Geophysical Research: Solid Earth, 122, 7912–7926. https://doi.org/10.1002/2017JB014213

• Swiech E., P. Wandycz, L. Eisner, A. Pasternacki, T. Mackowski, 2017: Downhole microseiseismic monitoring of shale deposits case staudy from Northern Poland. Acta Ge
  odyn. Geomater., 14, No. 3 (187), 297–304, 2017. DOI: 10.13168/AGG.2017.0012

• Staněk F., L. Eisner, A. Vesnaver, 2017, Theoretical assessment of the full-moment-tensor resolvability for receiver arrays used in microseismic monitoring. Acta Geodyn. Geomater., 14, No. 2 (186), 235–240, DOI: 10.13168/AGG.2017.0006

• Wcisło, M., L. Eisner, 2016, Attenuation from microseismic datasets by the peak frequency method benchmarked with the spectral ratio method, Studia Geophysica et Geodaetica, 60 (3), pp 549-564. DOI: 10.1007/s11200-015-0577-7

• Jechumtálová Z. and Szafrański D., 2016. Determination of the stress state – An Additional Benefit of Background Seismicity Monitoring. CSEG Recorder 41 (9), 20-22.

• Opršal I., Eisner L., 2016. Lack of temporal correlation between seismicity and injection in Arkansas, US. First Break, 34 (6), 79-84.

• Szafrański D., Pawelec I., 2015. Calibration of Vp/Vs ratio in isotropic layered model using passive seismic data. First Break, 33 (5), 81-85.

• Staněk F., Jechumtálová Z., Eisner L., 2015. Reservoir stress from microseismic source mechanisms. Leading Edge, 34 (8), 890–895, doi:10.1190/tle34080890.1.

• Staněk F., Anikiev D., Valenta J., Eisner L., 2015. Semblance for microseismic event detection. J. Int., 201 (3), 1362-1369, doi: 10.1093/gji/ggv070.

• Zhebel O., Eisner L., 2015. Simultaneous microseismic event localization and source mechanism determination. Geophysics, 80 (1), doi: 1190/geo2014-0055.1.

• Clarke H., Eisner L., Styles P., Turner P., 2014. Felt seismicity associated with shale gas hydraulic fracturing: The first documented example in Europe. Res. Lett., 41, 8308–8314, doi: 10.1002/2014GL062047.

• Anikiev D., Valenta J., Staněk F., Eisner L., 2014. Joint location and source mechanism inversion of microseismic events: benchmarking on seismicity induced by hydraulic fracturing. J. Int., 198 (1), 249-258, doi: 10.1093/gji/ggu126.

• Staněk F., Eisner L., MoserJ., 2014. Stability of source mechanisms inverted from P‐wave amplitude microseismic monitoring data acquired at the surface. Geophys. Prospecting, 62 (3), 475-490, doi: 10.1111/1365-2478.12107.

• Cieplicki R., Eisner L., Mueller M., Moment and moment magnitude of seismic events located by stacking. Geophysics, 79 (6), doi: 10.1190/geo2014-0179.1.

• Opršal I., Eisner L., 2014. Cross-correlation—an objective tool to indicate induced seismicity. J. Int., 196 (3), 1536-1543, doi: 10.1093/gji/ggt501.

• Halló M., Opršal I., Eisner L., Mohammed Y.A., 2014. Prediction of magnitude of the largest potentially induced seismic event. Journal of Seismology, 18 (3), 421-431, doi: 10.1007/s10950-014-9417-4.

• Eisner L., Gei D., Halló, Opršal I., Ali M.Y., 2014. Reply to “The peak frequency of direct waves for microseismic events” (Eisner, Gei, Halló, Opršal, and Ali, Geophysics, 78, A45–A49). Geophysics, 79 (4), X23-X25, doi: 10.1190/2014-0053.2.

• Eisner L., Gei D., Halló M., Opršal I., Ali M.Y., 2013. The peak frequency of direct waves for microseismic events. Geophysics, 78 (6), A45–A49, doi: 10.1190/geo2013-0197.1.

• Eisner L., Maxwell S., Raymer D., Williams M., Primiero P., 2013. Signals. Leading Edge, 32 (8), 1462–1468, doi: 10.1190/tle32080868.1.

• Eisner L., Halló M., Janská E., Opršal I., Matoušek P., Clarke H., Turner P., Harper T., Styles P. (2013): Lessons learned from hydraulic stimulation of the Bowland Shale. SEG Technical Program Expanded Abstracts 2013: pp. 4516-4520.

• Jánský J., Plicka V., Eisner L., Feasibility of jointly locating microseismic events with data from surface and downhole receivers. First Break, 31 (x).

• Zhang Y., Eisner L., Barker W., Mueller M.C., Smith K.L., 2013. Effective anisotropic velocity model from surface monitoring of microseismic events. Prospecting, 61 (5), 919-930, doi: 10.1111/1365-2478.12017.

• Janská E., Eisner L., 2012. Ongoing seismicity in the Dallas-Fort Worth area. Leading Edge, 31 (12), 1462–1468, doi: 10.1190/tle31121462.1.

• Halló M., Eisner L., Mohammed Y.A., 2012. Expected level of seismic activity caused by volumetric changes. First Break, 30 (7), 97-100.

• Eisner L., Zhang Y., Duncan P., Mueller M.C., Thornton M.P., Gei D., 2011. Effective VTI anisotropy for consistent monitoring of microseismic events. Leading Edge, 30 (7), doi: 10.1190/1.3609092.1.

• Gei, Eisner L., Suhadolc P., 2011. Feasibility of estimating vertical transverse isotropy from microseismic data recorded by surface monitoring arrays. Geophysics, 76 (6), doi: 10.1190/geo2011-0028.1.