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| Titel |
Approach of puzzling features in the study of pre-seismic electromagnetic emissions |
| VerfasserIn |
Konstantinos Eftaxias, George Minadakis, George Kopanas, George Antonopoulos |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250051285
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| Zusammenfassung |
| Fracture-induced electromagnetic phenomena allow a real-time monitoring of damage
evolution in rocks induced by mechanical loading. More precisely, rock fracturing in
laboratory tests and in the Earth’s crust is accompanied with radiation of electromagnetic kHz
electromagnetic waves at the tail of the pre-seismic activity. Puzzling features in the study of
pre-seismic electromagnetic emissions are the absence of electromagnetic activity during the
earthquake occurrence and aftershocks period. We claim that these puzzling features are
rooted in the fact that irreversible deformation of rocks is accompanied by memory effects.
The presence of the Kaiser effect in detected pre-seismic kHz electromagnetic activities is
also investigated. |
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