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| Titel |
Earthquake lights and rupture processes |
| VerfasserIn |
T. V. Losseva, I. V. Nemchinov |
| 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 ; 5, no. 5 ; Nr. 5, no. 5 (2005-09-08), S.649-656 |
| Datensatznummer |
250002788
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| Publikation (Nr.) |
 copernicus.org/nhess-5-649-2005.pdf |
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| Zusammenfassung |
| A physical model of earthquake lights is proposed. It is suggested that the
magnetic diffusion from the electric and magnetic fields source region is a
dominant process, explaining rather high localization of the light flashes.
A 3D numerical code allowing to take into account the arbitrary distribution
of currents caused by ground motion, conductivity in the ground and at its
surface, including the existence of sea water above the epicenter or (and)
near the ruptured segments of the fault have been developed. Simulations for
the 1995 Kobe earthquake were conducted taking into account the existence of
sea water with realistic geometry of shores. The results do not contradict
the eyewitness reports and scarce measurements of the electric and magnetic
fields at large distances from the epicenter. |
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