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| Titel |
Non double couple seismic sources, faults interaction and hypothesis of self-organized criticality |
| VerfasserIn |
S. Yunga, A. Lutikov, O. Molchanov |
| 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. 1 ; Nr. 5, no. 1 (2005-01-03), S.11-15 |
| Datensatznummer |
250002186
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| Publikation (Nr.) |
 copernicus.org/nhess-5-11-2005.pdf |
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| Zusammenfassung |
| Non double couple (NDC) sources are considered in framework of the
hypothesis that the process of seismic rupture can be viewed as a result of
complicated fault geometry and its segmentation. Analytical approach is
found to reveal reliability of NDC measure taking into consideration the
values of seismic moment tensor errors. The study focuses on the comparison
of the deformation modes of the NDC sources with the stress states in its
vicinity. The deformation modes of faulting and fracturing at a small scale
in NDC earthquake focus and at regional scale in geological unit were
investigated using at the last case summation of seismic moment tensors.
These local and regional deformation modes in some of geodynamic regimes
confirm the self-similarity assumption. For the whole data set scaling
relations seem to be more complicated. This feature implies that besides
stresses second order factors, as the hydrothermal or magmatic pore fluids
in rock, influence source characteristics and bring new complications in
scaling relations. |
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