Generation of electric field in an earthquake preparation zone | Zendy

Roman Teisseyre | Zendy

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Generation of electric field in an earthquake preparation zone

Author(s) -

Roman Teisseyre

Publication year - 1997

Publication title -

annals of geophysics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 60

eISSN - 2037-416X

pISSN - 1593-5213

DOI - 10.4401/ag-3912

Subject(s) - isotropy , geology , electric field , anisotropy , seismology , displacement (psychology) , electrokinetic phenomena , polarization (electrochemistry) , geophysics , physics , materials science , optics , psychology , quantum mechanics , nanotechnology , psychotherapist , chemistry

Different attempts have been made to explain the generation of the electric currents before an earthquake that take place in an earthquake preparation zone; in some of them the coseismic effects are also included. In this paper we discuss the possibility to construct a model of displacement current generation in an earthquake source zone which combines polarization processes and motion of charged dislocations. Such a process is associated with the transition from isotropic to stress-induced anisotropic properties in an earthquake source zone. Concurrently, we consider the conduction currents related to a high velocity motion of charged dislocations. Another approach related to an electrokinetic model of current generation is also briefly discussed

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