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Surface creep on the North Anatolian Fault at Ismetpasa, Turkey, 1944-2016
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2016
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Source: Journal of Geophysical Research: Solid Earth, 121(10), 7409-7431
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Journal Title:Journal of Geophysical Research: Solid Earth
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Description:We reevaluate the 72 year history of surface slip on the North Anatolian Fault at Ismetpasa since theMw= 7.4 1944 Bolu/Gerede earthquake. A revised analysis of published observations suggests that days after the earthquake the fault had been offset by 3.7 m and 6 years later by an additional 0.74 m. Creep wasfirst recognized on the fault in 1969 as a 0.13 m offset of a wall constructed in 1957 that now (2016) has been offset by 0.52 m. A carbon rod creep meter operated across the fault in the past 2 years con firms results from an invar wire creep meter operated 1982 –1991 that surface slip is episodic. Months of fault inactivity are interrupted by slow slip ( ≤10μm/d) or multiple creep events with cumulative amplitudes of 2 –10 mm, durations of several weeks, and with slip rates brie fly exceeding >2.5 mm/h. Creep events accommodate
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Source:Journal of Geophysical Research: Solid Earth, 121(10), 7409-7431
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ISSN:2169-9313
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Rights Information:CC BY-NC-ND
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Compliance:Library
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