Present-day crustal motion in the Solomon Islands from GPS observations

Details Present-day crustal motion in the Solomon Islands from GPS observations Present-day crustal motion in the Solomon Islands from GPS observations

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.3627t&link_type=abstract

Geophysical Research Letters, Volume 25, Issue 19, p. 3627-3630

Physics

Geophysics

1

Tectonophysics: Plate Motions-General, Marine Geology And Geophysics: Plate Tectonics

Scientific paper

Site velocities in the Solomon Islands from Global Positioning System measurements spanning two years provide direct evidence of active deformation between the Pacific Plate and the Solomon Arc block. Convergence is occurring at the San Cristobal Trench at a rate of ~52+/-4mm/yr, with no apparent local deformation occurring in the Australian Plate at a distance of ~100 km from the trench. The islands of Guadalcanal and Makira are in a first approximation moving with the Pacific Plate although there is evidence of small but significant decoupling from the Pacific Plate of 14-23 mm/yr in a direction of 75-85°.

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