Reservoir induced seismic hazard using principal component analysis
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Resumen
Se calcularon funciones empíricas ortogonales (EOF) asociadas con los parámetros que contribuyen a la generación de sismicidad inducida en presas, con base en 37 casos en todo el mundo. Se encontró que la primera EOF explica el 54% de la varianza. Mostró una correlación de 0.38 con la magnitud máxima y tuvo una carga mayor respecto al volumen de la presa y el retraso en tiempo de la magnitud máxima desde su llenado inicial. La segunda EOF que explicó aproximadamente el 33% de la varianza, mostró sin embargo la carga máxima para la altura de la presa, pero tuvo una correlación de sólo 0.10. Incluyendo la magnitud sísmica máxima como el cuarto parámetro, las primeras dos EOF's explicaron sólo el 73% de la varianza comparada con el 87% usando tres parámetros. La influencia combinada del volumen de la presa y del retraso en tiempo resultan ser más importantes que la altura de la presa desde el punto de vista de la evaluación del peligro.
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