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http://hdl.handle.net/2122/1543
Authors: | Teisseyre, R. | Title: | Generation of electric field in an earthquake preparation zone | Issue Date: | Mar-1997 | Series/Report no.: | 2/40 (1997) | URI: | http://hdl.handle.net/2122/1543 | Keywords: | Earthquake precursors electric current |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability | Abstract: | 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. |
Appears in Collections: | Annals of Geophysics |
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