eltanin fracture zone

As AABW flows through the Romanche Fracture Zone, salinity and temperature increase significantly. For the eight fault segments examined in Figs 7-10 some systematic behaviour can be seen among Mws of the largest earthquakes, their average repeat times, T, and the numbers of large events. S1 in the Supporting Information). fracture zones and transform faults flashcards quizlet. 5. Wilson (1965) utilized the observation that earthquakes along the Eltanin fracture zone were confined to the zone between two offset ridge crests in formulating his hypothesis of transform faulting. We interpret it as indicative that only some parts of the three Eltanin transforms are capable of generating shocks of Mw 6.1-6.4 and that events much larger than 6.4, especially events of Mw > 7, are unlikely to occur. We find or confirm two anomalous characteristics: the . That may account for the variety of Mws along it. J. C. Seismic properties of the Eltanin Transform System, South Pacific The average of the three intervals since 1967 is 12.8 yr with a COV of 0.36. Some of our largest events occur within about 25 km of the eastern end of the Heezen and the western end of the Hollister transforms (Figs 4 and 6). The data for Mw > 5.9 are fit remarkably well by the slip predictable model of Shimazaki & Nakata (1980) whereby the size of the next earthquake is proportional to the time since the previous event. . The presence of large events just to its west and the variety of Mws, however, suggest that it does not always rupture as a single asperity. His events along what we identify as a well-coupled zone between 29 and 59 km in Fig. transform faults fracture zones and the kinematics of. Wolfe et al. Although They find that aftershock zones of nearby pairs of moderate-size earthquakes along fast-moving transforms were separated by small spreading centres. By chron 28 (63-64 Ma) about 750 km of the present 1000 km offset had accumulated across them. We present a compilation of the seismic properties of the Eltanin Transform Fault (TF) system, compelled by the recent discovery of the Hollister Ridge and the possibility of a change of plate. A Seabeam reconnaissance of the 400 km-long fast-slipping (88 mm yr-1) Heezen transform fault zone and the 55 km-long spreading center that links it to Tharp transform defined and bathymetrically described several types of ridges built by tectonic uplift and volcanic construction. Cumulative seismic moment release for shocks of Mw > 5.55 from 1976 to 2010 along two segments of Hollister transform fault as indicated in Fig. D.L. "zone of fracture" in Chinese : , ; ; ,; ; "amsterdam fracture zone" in Chinese : "aseismic fracture zone" in Chinese : Wolfe et al. Earthquakes of Mw 6.2-6.4 occur along each transform but larger events are confined to the eastern half of the Heezen, two parts of the Tharp and segments of the Hollister. Nakata P. Three normal-faulting events were found with T-axes nearly perpendicular to the Heezen transform (Fig.

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