期刊
SCIENCE ADVANCES
卷 5, 期 12, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aax6720
关键词
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资金
- U.K. Natural Environmental Research Council (NERC) through the Earthquakes without Frontiers project [EwF_ NE/J02001X/1_1]
- Looking Inside the Continents from Space (LiCS) project [NE/K011006/1]
- Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET) [GA/13/M/031]
- international training group StRATEGy (Surface Processes, Tectonics, and Georesources) - German Research Foundation (DFG)
- State of Brandenburg, Germany
- Singapore Ministry of Education, AcRF Tier 1 [RG100/17, RG181/16]
- National Science Foundation [EAR-1036065, EAR-1118514]
- NERC [NE/J01978X/1, come30001, NE/K010867/1] Funding Source: UKRI
Deformation associated with plate convergence at subduction zones is accommodated by a complex system involving fault slip and viscoelastic flow. These processes have proven difficult to disentangle. The 2010 M-w 8.8 Maule earthquake occurred close to the Chilean coast within a dense network of continuously recording Global Positioning System stations, which provide a comprehensive history of surface strain. We use these data to assemble a detailed picture of a structurally controlled megathrust fault frictional patchwork and the three-dimensional rheological and time-dependent viscosity structure of the lower crust and upper mantle, all of which control the relative importance of afterslip and viscoelastic relaxation during postseismic deformation. These results enhance our understanding of subduction dynamics including the interplay of localized and distributed deformation during the subduction zone earthquake cycle.
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