In this study are reported estimates of the ground displacement associated with this event, using near-eld Global Positioning System (GPS) surveys in northwestern Sumatra combined with in situ and remote observations of the vertical motion of coral reefs ...

<p>This paper is about the deformation above the Sumatra subduction zone that is revealed by Global Positioning System (GPS) geodetic surveys and shows nearly complete coupling of the forearc to the subducting plate south of 0.5 S and half as much to the north.</p ...