Abstract
The evolution of the horizontal deformations of the Earth’s surface in the San Francisco region on a ten-year interval with a daily time resolution is investigated. The deformations of the total shear obtained from the data of permanent GPS observations are analyzed. The initial data are the time series of coordinate changes published by the Nevada Geodetic Laboratory of the University of Nevada, Reno. The evolution of the Earth’s surface deformations is tracked using kinematic visualizations that demonstrate the change of the deformation field over time. The created animations make it possible to monitor the qualitative nature of the deformation in connection with the seismic process evolvement and fault tectonics. The region under study in recent years has been the subject of special attention due to possible occurrence of a strong earthquake. The visualization of the deformation process demonstrated the zones of activation and the propagation path of the deformation fronts. It is shown that the propagation of shear deformation, initiated from the epicenters of duplicate moderate earthquakes, migrates to the Napa Fault and provokes a major earthquake. This phenomenon is regarded by the authors as a trigger for a seismic event. It is concluded that the Hayward Fault Zone is currently less seismically active as the most mobile one.
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References
Blewitt, G., Hammond, W.C., Kreemer C.: Harnessing the GPS data explosion for interdisciplinary science. Eos 99 (2018). https://doi.org/10.1029/2018EO104623
Bykov, V.: Prediction and observation of strain waves in the earth. Geodyn. Tectonophys. 9(3), 721–754 (2018). https://doi.org/10.5800/GT-2018-9-3-0369
Bykov, V., Trofimenko, S.: Slow strain waves in blocky geological media from GPS and seismological observations on the amurian plate. Nonlinear Process. Geophys. 23, 467–475 (2016). https://doi.org/10.5194/npg-23-467-2016
Detweiler, S.T., Wein, A.M. (eds.): The HayWired Earthquake Scenario—Earthquake Hazards (Ver. 1.1, March 2018). U.S. Geological Survey Scientific Investigations Report 2017-5013-A-H, p. 126. https://doi.org/10.3133/sir20175013v1
Hudnut, K.W., Wein, A.M., Cox, D.A., Porter, K.A., Johnson, L.A., Perry, S.C., Bruce, J.L., LaPointe D.: The HayWired Earthquake Scenario—We Can Outsmart Disaster, vol. 3016, p. 6. U.S. Geological Survey, Fact Sheet 2018–3016 (2018). https://doi.org/10.3133/fs20183016
Kaftan, V., Melnikov, A.: Local deformation precursors of large earthquakes derived from GNSS observation data. In: IOP Conference Series Earth and Environmental Science, vol. 95, No. 3, p. 032030 (2017). https://doi.org/10.3133/fs20183016
Kaftan, V., Melnikov, A.: Revealing the deformation anomalies based on GNSS data in relation to the preparation and stress release of large earthquakes. Izvesti. Phys. Solid. Earth 54(1), 22–32 (2018). https://doi.org/10.1134/S1069351318010093
Kuz’min, Yu.: Deformation autowaves in fault zones. Izvesti. Phys. Solid. Earth 48(1), 1–16 (2012). https://doi.org/10.1134/s1069351312010089
Morozov, V., Kaftan, V., Tatarinov, V., Kolesnikov, I., Manevich, A., Melnikov, A.: Numerical modeling of the stress-strain state and results of GPS monitoring of the epicentral area of the August 24, 2014 earthquake (Napa, California, USA). Geotectonics 52(5), 578–588 (2018). https://doi.org/10.1134/S0016852118040064
Sherman, S.I.: Deformation waves as a trigger mechanism of seismic activity in seismic zones of the continental lithosphere. Geodyn. Tectonophys. 4(2), 83–117 (2013) (in Russian). https://doi.org/10.5800/GT-2013-4-2-0093
Trofimenko, S.V., Bykov, V.G., Grib, N.N.: Slow deformation waves in the seismic regime and geophysical fields at the northern margin of the Amur plate. Geodyn. Tectonophys. 9(2), 413–426 (2018). https://doi.org/10.5800/GT-2018-9-2-0353
Wei, M., Kaneko, Y., Liu, Y., McGuire, J.J.: Episodic fault creep events in California controlled by shallow frictional heterogeneity. Nat. Geosci. 6, 566–570 (2013). https://doi.org/10.1038/ngeo1835
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This work was conducted in the framework of budgetary funding of the Geophysical Center of RAS, adopted by the Ministry of Science and Higher Education of the Russian Federation.
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Kaftan, V., Melnikov, A. (2019). Migration of Earth Surface Deformation as a Large Earthquake Trigger. In: Kocharyan, G., Lyakhov, A. (eds) Trigger Effects in Geosystems. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-31970-0_8
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DOI: https://doi.org/10.1007/978-3-030-31970-0_8
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