Thermodynamics of line defects and transient electric current: electromagnetic field generation in earthquake preparation zone

Hiroyuki Nagahama, Roman Teisseyre

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In thermal equilibrium the electrical neutrality of the charge dislocation is assured by a cloud of oppositely charged point defects around it. Here, from the view point of thermodynamics of line vacancies, we propose a possibility of constructing a model of transient electric current generation in an earthquake source zone which combines polarization processes and motion of charged dislocations under the influence of evolving field of stresses. This transient electric current differs essentially from the piezo-electric current in which the electric field is proportional to the stress itself. Then we review briefly the elements of stress evolution theory. Some examples of the stress evolution pattern with the electromagnetic field radiation are shown.

Original languageEnglish
Pages (from-to)35-54
Number of pages20
JournalActa Geophysica Polonica
Volume46
Issue number1
Publication statusPublished - 1998 Sep 5

ASJC Scopus subject areas

  • Geology

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