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| Titel |
Observing spatio-temporal clustering and separation using interevent distributions of regional earthquakes |
| VerfasserIn |
R. C. Batac, H. Kantz |
| 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 ; 21, no. 4 ; Nr. 21, no. 4 (2014-07-04), S.735-744 |
| Datensatznummer |
250120926
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| Publikation (Nr.) |
 copernicus.org/npg-21-735-2014.pdf |
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| Zusammenfassung |
| Past studies that attempted to quantify the spatio-temporal organization of
seismicity have defined the conditions by which an event and those that
follow it can be related in space and/or time. In this work, we use the
simplest measures of spatio-temporal separation: the interevent distances R
and interevent times T between pairs of successive events. We observe that
after a characteristic value R*, the distributions of R begin to
follow that of a randomly shuffled sequence, suggesting that events separated
by R > R* are more likely to be uncorrelated events generated
independent of one another. Interestingly, the conditional T distributions
for short-distance (long-distance) events, R ≤ R* (R > R*),
peak at correspondingly short (long) T values, signifying the
spatio-temporal clustering (separation) of correlated (independent) events. By
considering different threshold magnitudes within a range that ensures
substantial catalogue completeness, invariant quantities related to the
spatial and temporal spacing of correlated events and the rate of generation
of independent events emerge naturally. |
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