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| Titel |
Inductive seismo-electromagnetic effect in relation to seismogenic ULF emission |
| VerfasserIn |
O. Molchanov, A. Kulchitsky, M. Hayakawa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 1, no. 1/2 ; Nr. 1, no. 1/2, S.61-67 |
| Datensatznummer |
250000022
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| Publikation (Nr.) |
 copernicus.org/nhess-1-61-2001.pdf |
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| Zusammenfassung |
| During the seismic
wave propagation through the crust, the electromagnetic pulse can
originate due to MHD conversion in this conductive medium. On the
assumption of simple models of seismic wave excitation and attenuation,
the problem is reduced to the analysis of a diffusion-like equation for a
vector potential function. In this way, we need to change the classical
gauge condition. A semi-analytical form of the solution is obtained in a
case with constant ground conductivity. Dependencies of the electric and
magnetic field components and the pulse duration on distance and crust
conductivity have been computed in detail. The results could be useful for
the explanation of electromagnetic signals related to coseismic, foreshock
and aftershock activity. |
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