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Título: | Gravity changes from a stress evolution earthquake simulation of California |
Autor: | Hayes, T. J.; Tiampo, Kristy F.; Rundle, J. B.; Fernández Torres, José CSIC ORCID | Palabras clave: | Geodesy Geodesia Gravity Gravedad Earthquakes Terremotos Simulations Simulaciones California Seismology Computational Geophysics Nonlinear geophysics |
Fecha de publicación: | sep-2006 | Editor: | American Geophysical Union | Citación: | Journal of Geophysical Research, 111, B09408 (2006) | Resumen: | The gravity signal contains information regarding changes in density at all depths and can be used as a proxy for the strain accumulation in fault networks. A stress evolution time-dependent model was used to create simulated slip histories over the San Andreas Fault network in California. Using a linear sum of the gravity signals from each fault segment in the model, via coseismic gravity Green's functions, a time-dependent gravity model was created. The steady state gravity from the long-term plate motion generates a signal over 5 years with magnitudes of ±~2 μGal; the current limit of portable instrument observations. Moderate to large events generate signal magnitudes in the range of ~10 to ~80 μGal, well within the range of ground-based observations. The complex fault network geometry of California significantly affects the spatial extent of the gravity signal from the three events studied. | Versión del editor: | http://dx.doi.org/10.1029/2005JB004092 | URI: | http://hdl.handle.net/10261/25968 | DOI: | 10.1029/2005JB004092 | ISSN: | 0148-0227 |
Aparece en las colecciones: | (IAG) Artículos |
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articulo22_2006.pdf | 12,93 MB | Adobe PDF | Visualizar/Abrir |
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