Distribution of present-day vertical deformation across the Southern Alps, New Zealand, from 10 years of GPS data

Details Distribution of present-day vertical deformation across the Southern Alps, New Zealand, from 10 years of GPS data Distribution of present-day vertical deformation across the Southern Alps, New Zealand, from 10 years of GPS data

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3716305b&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 16, CiteID L16305

Physics

3

Tectonophysics: Continental Tectonics: Compressional, Geodesy And Gravity: Satellite Geodesy: Results (6929, 7215, 7230, 7240), Geodesy And Gravity: Tectonic Deformation (6924), Geodesy And Gravity: Seismic Cycle Related Deformations (6924, 7209, 7223, 7230), Tectonophysics: Tectonics And Landscape Evolution

Scientific paper

We use ten years of GPS data from nine continuous and six semi-continuous GPS stations in a transect across the Southern Alps to measure rates of relative vertical movement with typical 1σ uncertainties of 0.3-0.5 mm/yr. The estimated vertical rates define a fairly smooth profile across the range, with the highest rates of ˜5 mm/yr found near the crest of the mountains and ˜20-30 km southeast of the Alpine Fault. The distribution of vertical rates supports models based on horizontal velocities from GPS surveys in which interseismic coupling on the Alpine Fault decreases from 100% near the surface to zero by 13-18 km depth.

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