Science and technological developments: article

V.A. Novikov 1,2 D.S. Kulkov 3 S.V. Parov 3 I.P. Gorynin 3
1 Joint Institute for High Temperatures of the Russian Academy of Sciences 2 Sadovsky Institute of Geosphere Dynamics of the Russian Academy of Sciences 3 Research Station of the Russian Academy of Sciences
Journal: Science and technological developments
Tome: 102
Number: 2-3
Year: 2023
Pages: 89–112
UDK: 550.37+550.34+001.891.57
DOI: 10.21455/std2023.2-3-4
Full text
Keywords: electromagnetic triggering of earthquakes, Joule heating of fluid, pore pressure, triggering effect
Аnnotation: Despite a large amount of field experiments and observations, as well as laboratory studies confirming the electromagnetic triggering of earthquakes, the physical mechanism of this phenomenon is still unclear, which inhibits its practical use in reducing seismic hazards, both for artificial electromagnetic discharge of tectonic stresses, and for short-term earthquake prediction based on electromagnetic triggering action of strong variations of the natural geomagnetic field on the impending earthquake area. In this paper the hypothesis of thermal triggering mechanism of an influence of electric current on porous fluid-saturated rock is considered, when Joule heating of fluid in pores and cracks leads to increase of pore fluid pressure and decrease of effective strength of rock. Numerical estimates of current flow in a porous fluid-saturated medium show that the increase in the temperature of the fluid and, as a result, its pressure in the pores may be a few percents, which can explain the triggering effect of electric current, when the geological medium is under a sub-critical stress-strain state. These results have been confirmed in laboratory experiments with compressed samples. Numerical estimates and laboratory experiments demonstrate that the hypothesis of thermal triggering effect of electric current on rocks can be accepted for further development under conditions of laboratory experiments on press equipment and spring- block facilities simulated seismogenic crust fault to determine the threshold values of electric current in the fracture under subcritical stress-strained state resulting in a triggering effect.
Bibliography: Antsyferov, M.S., Еlectroseismic effect, Doklady AN SSSR (Proc. USSR Acad. Sci.), 1962, vol. 144, no. 6, pp. 1295–1297. [in Russian].

Avagimov, A.A., Zeigarnik, V.A., Okunev, V.I., Dynamics of energy exchange in model samples subjected to elastic and electromagnetic impacts, Izvestiya, Physics of the Solid Earth, 2011, vol. 47, iss. 10, pp. 919–925.

Balbachan, M.Ya., Tomashevskaya, I.S., Effect of changing the strength of rocks as a result of mechanical electrification, Doklady AN SSSR (Proc. USSR Acad. Sci.), 1987, vol. 296, no. 5, pp. 1085–1089. [in Russian].

Cao, S., Neubauer, F., Graphitic material in fault zones: Implications for fault strength and carbon cy- cle, Earth Sci. Rev., 2019, vol. 194, pp. 109–124. j.earscirev.2019.05.008

Duma, G., Ruzhin, Yu., Diurnal changes of earthquake activity and geomagnetic Sq-variations, Nat. Haz. Earth Syst. Sci., 2003, vol. 3, iss. 3/4, pp. 171–177. 2003

Gomberg, J., Beeler, N.M., Blanpied, M.L., Bodin, P., Earthquake triggering by transient and static deformations, J. Geophys. Res., 1998, vol. 103, iss. B10, pp. 24411–24426. 10.1029/98JB01125

Lapshin, V.B., Patonin, A.V., Ponomarev, A.V. Potanina, M.G., Smirnov, V.B., Stroganova, S.M., Initiation of acoustic emission in fluid-saturated sandstone samples, Dokl. Earth Sci., 2016, vol. 469, iss. 1, pp. 705–709.

Marchitelli, V., Harabaglia, P., Troise, C., De Natale, G., On the correlation between solar activity and large earthquakes worldwide, Sci. Rep., 2020, vol. 10, art. 11495. 020-67860-3

Mukhamediev, Sh.A., Prevention of strong earthquakes: Goal or utopia?, Izvestiya, Physics of the Sol- id Earth, 2010, vol. 46, iss. 11, pp. 955–965.

Niccolini, G., Borla, O., Lacidogna, G., Carpinteri, A., Correlated fracture precursors in rocks and ce- ment based materials under stress, in: Acoustic, Electromagnetic, Neutron Emissions from Frac- ture and Earthquakes, eds. A. Carpinteri, G. Lacidogna, A. Manuello, Springer, 2015, pp. 237–248.

Novikov, V., Novikova, E., Electromagnetic stimulation of fluid migration into fault area and earth- quake triggering phenomena, Geophys. Res. Abstr., EGU General Assembly 2014, Vienna, 27 April – 2 May 2014, abstr. 12790.

Novikov, V., Zeigarnik, V., Konev, Yu., Rickman, V., Electric triggering of crack formations in the fault for release of tectonic stresses, Eos Trans. AGU, 2009, vol. 90, iss. 52, abstr. S51C-1447.

Novikov, V.A., Okunev, V.I., Klyuchkin, V.N., Liu, J., Ruzhin, Yu.Ya., Shen, X., Electrical triggering of earthquakes: Results of laboratory experiments at spring-block models, Earthq. Sci., 2017, vol. 30, iss. 4, pp. 167–172.

Novikov, V.A., Sorokin, V.M., Yashchenko, A.K., Can a solar flare trigger an earthquake?, Vestnik OIVT RAN (Bulletin of the Joint Institute for High Temperatures RAS), 2019, vol. 3, no. 2,

pp. 15–21. [in Russian].

Novikov, V., Ruzhin, Yu., Sorokin, V., Yaschenko, A., Space weather and earthquakes: Possible triggering of seismic activity by strong solar flares, Ann. Geophys., 2020, vol. 63, no. 5, art. PA554.

Rybin, A.K., Zabinyakova, O.B., Bataleva, E.A., Nepeina, K.S., Geoelectric model of the Issyk-Ata fault zone (Northern Tien Shan), Geofizika (Geophysics), 2023, no. 3, pp. 45–50. [in Russian].

SEM Tescan Vega 3 LMH. Technical Specifications, URL: [Access date: 09.12.2022].

Shapiro, S.A., Patzig, R., Rothert, E., Rindschwentner, J., Triggering of seismicity by pore-pressure perturbations: Permeability-related signatures of the phenomenon, in: Thermo-Hydro-Mechanical Coupling in Fractured Rock, ed. H.J. Kümpel, Basel, Birkhäuser, 2003, pp. 1051–1066.

Smirnov, V.B., Ponomarev, A.V., Fizika perekhodnykh rezhimov seismichnosti (Physics of transient seismic regimes), Moscow, RAS, 2020, 412 p.

Sobolev, G.A., Seismicity dynamics and earthquake predictability, Nat. Haz. Earth Syst. Sci., 2011, vol. 11, iss. 2, pp. 445–458.

Sobotka, J., DC-induced acoustic emission in saturated sand models of sedimentary rock, Acta Geo- physica, 2010, vol. 58, iss. 1, pp. 163–172.

Sorokin, V., Yaschenko, A., Mushkarev, G., Novikov, V., Telluric currents generated by solar flare radiation: Physical model and numerical estimations, Atmosphere, 2023, vol. 14, iss. 3, art. 458, 20 p.

Tarasov, N.T., Variation of seismicity of the Earth’s crust by electric impact, Doklady Akademii nauk (Transactions (Doklady) of the Russian Academy of Sciences, Earth Science Sections), 1997, vol. 353, no. 4, pp. 542–545. [in Russian].

Tarasov, N.T., Tarasova, N.V., Avagimov, A.A., Zeigarnik, V.A., The effect of high energy electro- magnetic pulses on seismicity in Central Asia and Kazakhstan, Volcanology and Seismology, 2000, vol. 21, pp. 627–639.

Trenkin, A.A., Possible influence of telluric current on seismicity of the Earth’s crust in seismoactive zones, Geomagn. Aeron., 2015, vol. 55, iss. 1, pp. 133–138. S0016793215010119

Velichko, A.A., Filimonova, N.I., Metody issledovaniya mikroelektronnykh i nanoelektronnykh mate- rialov i struktur (Methods of a study of microelectronic and nanoelectronic materials and struc- tures), part II, Novosibirsk, Novosibirsk State Technical University, 2014, pp. 215–217.

Yaroslavsky, M.A., Kapustyan, N.K., On a possibility of electroseismic effect, Doklady AN SSSR (Proc. USSR Acad. Sci.), 1990, vol. 315, no. 2, pp. 352–354. [in Russian].

Zakupin, A.S., Borovsky, B.V., Lever installation for static and dynamic testing of materials under uniaxial compression conditions, RF Patent 2542639 C2, 20.02.2015.

Zeigarnik, V.A., Avagimov, A.A., Tarasov, N.T., Managing earthquakes?, Science in Russia, 1999, no. 2, pp. 16–21.

Zeigarnik, V.A., Konev, Yu.B., Novikov, V.A., Thermal effect of a powerful current on fluid- saturated porous media, in: Triggernye effekty v geosistemakh: Materialy Vserossiiskogo semina- ra-soveshchaniya (Trigger Effects in Geosystems. Proc. All-Russ Workshop), Moscow, 2010, eds. V.V. Adushkin, G.G. Kocharyan, Moscow, GEOS, 2010, pp. 202–209.

Zeigarnik, V.A., Kliuchkin, V.N., Okunev, V.I., Influence of an electrical current on the acoustic response of stressed artificial sandstone samples, Uspekhi prikladnoi fiziki (Advances in Applied Physics), 2018, vol. 6, no. 3, pp. 199–208. [in Russian].

Zeigarnik, V.A., Bogomolov, L.M., Novikov, V.A., Electromagnetic earthquake triggering: Field observations, laboratory experiments, and physical mechanisms – A review, Izvestiya, Physics of the Solid Earth, 2022, vol. 58, iss. 1, pp. 30–58.