A possible theory connecting seismicity and geomagnetic field

Autores/as

Palabras clave:

geomagnetic field, earthquake, electric circuit, global atmosphere, Earth´s conductivity response, earthquake hourly distribution.

Resumen

A possible theory connecting geomagnetic field and earthquakes is presented. It was performed several hourly earthquakes distributions for different part of the world to explain, why bay-shape hourly distribution are clear for some areas, but not for others. In this sense, it was observed that earthquakes located in the intertropical zone reveal bay-shape earthquake distribution, but not defined shape is found for earthquakes outside the tropic. The answer is given based on geomagnetic flow orientation. The angle between the geomagnetic field direction and the Earth’s surface is almost parallel in the equator and orthogonal in the poles. Furthermore, considering the Laplace’s force law, the force experienced in the electrical conductor, in presence of magnetic field, is maximum when the angle between the magnetic flow direction and the electrical conductor is 90 degrees. Here, the electrical conductor is found on the global atmospheric electric circuit, where electrical current is flowing orthogonal to the Earth’s surface. The intertropical zone has angles between the geomagnetic flow vector and electric conductor more close to 90 degrees than middle latitudes and polar areas. The hourly earthquake distribution is modelled by the time-varying electrical potential in the global atmospheric electrical circuit, which is more significant in the intertropical zone. The effect of electricity on earthquakes is based on reverse piezoelectric phenomena.

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Citas

Duma, G. and Vilardo, G. 1998. Seismicity Cycles in the Mt. Vesuvius Area and their Relation to Solar Flux and the Variations of the Earth’s Magnetic Field. Phys. Chem. Earth, 23(9-10): 927-931. https://doi.org/10.1016/S0079-1946(98)00121-9

Eccles, D., Sammonds, P.R. and Clint, O.C. 2005. Laboratory studies of electrical potential during rock failure. International Journal of Rock Mechanics & Mining Sciences, 42: 933-949. https://doi.org/10.1016/j.ijrmms.2005.05.018

Fujii, I. and Schultz, A. 2002. The 3D electromagnetic response of the Earth to ring current and auroral oval excitation. Geophys. J. Int., 151: 689–709. https://doi.org/10.1046/j.1365-246X.2002.01775.x

Gao, Y., Chen, X., Hu, H., Wen, J., Tang, J. and Fang, G. 2014. Induced electromagnetic field by seismic waves in Earth´s magnetic field. J. Geophys. Res. Solid Earth, 119 :5651-5685. https://doi.org/10.1002/2014JB010962

Johnston, M.J.S. 2002. Electromagnetic Fields Generated by Earthquakes. In: Lee, W., Jennings, P., Kisslinger, C., Kanamori, H., (Eds.), International Handbook of Earthquake and Engineering Seismology Part A Vol. 81, Elsevier, San Diego, pp. 621-635. https://doi.org/10.1016/S0074-6142(02)80241-8

Klein, F.W. 1976. Earthquake Swarms and the Semidiurnal Solid Earth Tide. Geophys. J. R. astr. Soc., 45: 245-295. https://doi.org/10.1111/j.1365-246X.1976.tb00326.x

Lei, Y., Jiao, L. and Chen, H. 2018. Possible correlation between the vertical component of lithospheric magnetic field and continental seismicity. Earth, Planets and Space, 70(179):1-19. https://doi.org/10.1186/s40623-018-0949-7

Marchitelli, V., Harabaglia, P., Troise, C. and De Natale, G. 2020. On the correlation between solar activity and large earthquake worldwide. Scientific Reports 10 (11495). https://doi.org/10.1038/s41598-020-67860-3

Moreno, B. and Calais, E. 2021. Evidence of correlation between high frequency geomagnetic variations and seismicity in the Caribbean. Open Journal of Earthquake Research, 10:30-41. https://doi.org/10.4236/ojer.2021.102003

Rycroft, M.J., Israelsson, S. and Price, C. 2000. The global atmospheric electric circuit, solar activity and climate change. Journal of Atmospheric and Solar-Terrestrial Physics, 62 (17-18):1563-1576. https://doi.org/10.1016/S1364-6826(00)00112-7

Sorokin, V.M., Chmyrev, V.M. and Hayakawa, M. 2020. A Review on Electrodynamic Influence of Atmospheric Processes to the Ionosphere. Open Journal of Earthquake Research, 9:113-141. https://doi.org/10.4236/ojer.2020.92008

Urata, N., Duma,G. and Freund, F. 2018. Geomagnetic Kp Index and Earthquakes. Open Journal of Earthquake Research, 7:39-52. https://doi.org/10.4236/ojer.2018.71003

Williams, E.R. 2009. The global electrical circuit: A review. Atmospheric Research, 91:140-152. http://dx.doi.org/10.1016/j.atmosres.2008.05.018

Publicado

2022-04-13

Cómo citar

Moreno-Toirán, B. (2022). A possible theory connecting seismicity and geomagnetic field. Minería Y Geología, 38(1), 1–11. Recuperado a partir de https://revista.ismm.edu.cu/index.php/revistamg/article/view/art1_No1_2022

Número

Sección

Geología

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