Distribution of present-day vertical deformation across the Southern Alps, New Zealand, from 10 years of GPS data
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Author(s) • • • • •
Beavan, J.
Denys, P.
Denham, M.
Molnar, P.
Hager, Bradford H
Herring, Thomas A
Date Issued
August 2010
Journal
Geophysical Research Letters
Publisher
American Geophysical Union (AGU)
Citation
Beavan, J. et al. “Distribution of Present-Day Vertical Deformation across the Southern Alps, New Zealand, from 10 Years of GPS Data: SOUTHERN ALPS VERTICAL DEFORMATION.” Geophysical Research Letters 37.16 (2010): n. pag. © 2010 American Geophysical Union
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Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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DOI of Published Version
https://doi.org/10.1029/2010GL044165