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| Titel |
Weighted complex networks applied to seismicity: the Itoiz dam (Northern Spain) |
| VerfasserIn |
A. Jiménez, F. Luzón |
| 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 ; 18, no. 4 ; Nr. 18, no. 4 (2011-07-18), S.477-487 |
| Datensatznummer |
250013943
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| Publikation (Nr.) |
 copernicus.org/npg-18-477-2011.pdf |
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| Zusammenfassung |
| On 18 September 2004, an earthquake of magnitude mbLg = 4.6 was recorded
near the Itoiz dam (Northern Spain). It occurred after the first impoundment
of the reservoir and has been catalogued by some authors as induced
seismicity. We analyzed the seismicity in the region as weighted complex
networks and tried to differentiate this event from others that occurred
nearby. We calculated the main topological features of the networks formed
by the seismic clusters and compared them. We compared the results with a
series of simulations, and showed that the clusters were better modelled
with the Epidemic-Type Aftershock Sequence (ETAS) model than with random
models. We found that the properties of the different clusters are grouped
according to the magnitude of the main shocks and the number of events in
each cluster, and that no distinct feature could be obtained for the 18 September 2004 series. We found that the nodes with the highest strength are
the most important in the networks' traffic, and are associated with the
events with the highest magnitude within the clusters. |
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