Physics – Geophysics
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..713s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, Aug. 1986, p. 713-716. Research supported by the Petroleum Research Fund
Physics
Geophysics
17
Earthquakes, Geophysics, Plates (Tectonics), Seismology, Chile, Convergence, Pacific Ocean
Scientific paper
The seismic slip rate along the Chile Trench estimated from the slip in the great 1960 earthquake and the recurrence history of major earthquakes has been interpreted as consistent with the subduction rate of the Nazca plate beneath South America. The convergence rate, estimated from global relative plate motion models, depends significantly on closure of the Nazca - Antarctica - South America circuit. NUVEL-1, a new plate motion model which incorporates recently determined spreading rates on the Chile Rise, shows that the average convergence rate over the last three million years is slower than previously estimated. If this time-averaged convergence rate provides an appropriate upper bound for the seismic slip rate, either the characteristic Chilean subduction earthquake is smaller than the 1960 event, the average recurrence interval is greater than observed in the last 400 years, or both. These observations bear out the nonuniformity of plate motions on various time scales, the variability in characteristic subduction zone earthquake size, and the limitations of recurrence time estimates.
Demets Charles
Engeln Joseph F.
Gordon Roy G.
Stein Sherman
Woods David
No associations
LandOfFree
The Nazca-South American convergence rate and the recurrence of the great 1960 Chilean earthquake does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Nazca-South American convergence rate and the recurrence of the great 1960 Chilean earthquake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nazca-South American convergence rate and the recurrence of the great 1960 Chilean earthquake will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-892809