Strain partitioning and fault slip rates in the northeastern Caribbean from GPS measurements

Details Strain partitioning and fault slip rates in the northeastern Caribbean from GPS measurements Strain partitioning and fault slip rates in the northeastern Caribbean from GPS measurements

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29r...3c&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 18, pp. 3-1, CiteID 1856, DOI 10.1029/2002GL015397

Physics

10

Geodesy And Gravity: Crustal Movements-Interplate (8155), Geodesy And Gravity: Satellite Orbits, Tectonophysics: Dynamics, Seismotectonics, Tectonophysics: Plate Boundary-General (3040), Seismology: Paleoseismology

Scientific paper

GPS data collected in the Dominican Republic from 1994 to 2001 show that oblique convergence between the North American and Caribbean plates is partitioned between 5.2 +/- 2 mm.yr-1 of dip-slip reverse motion on the North Hispaniola thrust (approximately N-S), and 12.8 +/- 2.5 mm.yr-1 and 9.0 +/- 9.0 mm.yr-1 of approximately E-W left-lateral strike-slip motion on the Septentrional and Enriquillo faults (95% confidence). The agreement between GPS and paleoseimological slip rates on the Septentrional fault, together with the 770-960 years since the last major earthquake and the 800-1200 years maximum repeat time of major earthquakes, may indicate that the Septentrional fault is currently in the late phase of its rupture cycle.

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