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Title: High pore fluid pressure may cause silent slip in the Nankai Trough. Author: Kodaira S, Iidaka T, Kato A, Park JO, Iwasaki T, Kaneda Y. Journal: Science; 2004 May 28; 304(5675):1295-8. PubMed ID: 15166372. Abstract: Silent-slip events have been detected at several subduction zones, but the cause of these events is unknown. Using seismic imaging, we detected a cause of the Tokai silent slip, which occurred at a presumed fault zone of a great earthquake. The seismic image that we obtained shows a zone of high pore fluid pressure in the subducted oceanic crust located down-dip of a subducted ridge. We propose that these structures effectively extend a region of conditionally stable slips and consequently generate the silent slip.[Abstract] [Full Text] [Related] [New Search]