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| Titel |
Acoustic emission and released seismic energy |
| VerfasserIn |
G. P. Gregori, G. Paparo, M. Poscolieri, A. Zanini |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 5, no. 6 ; Nr. 5, no. 6 (2005-10-13), S.777-782 |
| Datensatznummer |
250002874
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| Publikation (Nr.) |
 copernicus.org/nhess-5-777-2005.pdf |
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| Zusammenfassung |
| Intense crises of crustal stress appear to cross large
regions, and to precede by several months the eventual occurrence of some
strong earthquake within them. The phenomenon is not linear, and the stress
control reflects some wide scale-size rather than local effects. The stress
propagation through the crust can be effectively monitored by means of
acoustic emission (AE) techniques (ultrasounds). The correlation is here
investigated between crustal stress crises and the total release of seismic
energy within some space domain around the AE recording site. Some clear
inferences can be envisaged, although a significant diagnosis of the state
of the crust within a given region ought to request arrays of simultaneously
operated AE recorders. Some case histories are described dealing with the
Italian peninsula and with the Cephallonia Island. |
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