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| Titel |
Features of criticality in precursory seismic electric signals and earthquakes in Greece |
| VerfasserIn |
E. Dologlou |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 20, no. 3 ; Nr. 20, no. 3 (2013-06-21), S.411-416 |
| Datensatznummer |
250018977
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| Publikation (Nr.) |
 copernicus.org/npg-20-411-2013.pdf |
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| Zusammenfassung |
| Very recently the recordings of precursory seismic electric signals (SESsf)
in the island of Kozu-shima, Japan, have been reported, and their
interrelation with subsequent earthquakes was shown to be beyond chance.
Almost simultaneously, the recording of SES activity in northern Greece was
also reported, which was followed by a magnitude 5.7 earthquake in northern
Greece. These facts strengthen the aspects on the precursory nature of SESs
and also enable the updating of a previously found power law relation between
the earthquake stress drop and the lead time of SESs. They led to an exponent
of 0.330, which falls in the range of critical exponents for fracture. The
stability of this exponent, which results from a large amount of data during
the last 30 yr, is remarkable and may thus confirm features of criticality
in the pre-seismic region after the SES emission. The underlying physics are
also discussed. |
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