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| Titel |
Order parameter fluctuations in natural time and b-value variation before large earthquakes |
| VerfasserIn |
P. A. Varotsos, N. V. Sarlis, E. S. Skordas |
| 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 ; 12, no. 11 ; Nr. 12, no. 11 (2012-11-21), S.3473-3481 |
| Datensatznummer |
250011203
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| Publikation (Nr.) |
 copernicus.org/nhess-12-3473-2012.pdf |
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| Zusammenfassung |
| Self-similarity may stem from two origins: the
process increments infinite variance and/or process memory. The
b-value of the Gutenberg-Richter law comes from the first
origin. In the frame of natural time analysis of earthquake data,
a fall of the b-value observed before large earthquakes reflects
an increase of the order parameter fluctuations upon approaching
the critical point (mainshock). The increase of these
fluctuations, however, is also influenced from the second origin
of self-similarity, i.e., temporal correlations between earthquake
magnitudes. This is supported by observations and simulations of
an earthquake model. |
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