Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/712
AuthorsTeisseyre, R.* 
Ernst, T.* 
TitleElectromagnetic radiation related to dislocation dynamics in a seismic preparation zone
Issue Date2002
Series/Report no.45 (2)
URIhttp://hdl.handle.net/2122/712
Keywordsstress evolution
instabilities
charge dislocations
electromagnetic emission
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.03. Global and regional models 
04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques 
AbstractElectromagnetic emission is observed frequently before earthquakes as high noise level in VLF and ULF bands. We present theoretical considerations on electromagnetic radiation caused by dislocation dynamics in the preseismic micro-sources (micro-crackings) located in an earthquake preparation zone. Some of these micro-sources could be located near the ground surface and their electromagnetic signals could be accesible in some recording stations. The examples of the numerically simulated induction and radiation fields are given and one example of the observed radio-noise recording is shown.
Appears in Collections:Annals of Geophysics

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