Illuminating subduction zone rheological properties in the wake of a giant earthquake
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 Mw 8.8 Maule earthquake occurred close to the Chilean coast within a dense network of conti...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/145425 |
| _version_ | 1826128362455695360 |
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| author | Weiss, Jonathan R. Qiu, Qiang Barbot, Sylvain Wright, Tim J. Foster, James H. Saunders, Alexander Brooks, Benjamin A. Bevis, Michael Kendrick, Eric Ericksen, Todd L. Avery, Jonathan Smalley, Robert, Jr. Cimbaro, Sergio R. Lenzano, Luis E. Barón, Jorge Báez, Juan Carlos Echalar, Arturo |
| author2 | Asian School of the Environment |
| author_facet | Asian School of the Environment Weiss, Jonathan R. Qiu, Qiang Barbot, Sylvain Wright, Tim J. Foster, James H. Saunders, Alexander Brooks, Benjamin A. Bevis, Michael Kendrick, Eric Ericksen, Todd L. Avery, Jonathan Smalley, Robert, Jr. Cimbaro, Sergio R. Lenzano, Luis E. Barón, Jorge Báez, Juan Carlos Echalar, Arturo |
| author_sort | Weiss, Jonathan R. |
| collection | NTU |
| description | 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 Mw 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. |
| first_indexed | 2024-10-01T07:23:44Z |
| format | Journal Article |
| id | ntu-10356/145425 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:23:44Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1454252020-12-26T20:10:56Z Illuminating subduction zone rheological properties in the wake of a giant earthquake Weiss, Jonathan R. Qiu, Qiang Barbot, Sylvain Wright, Tim J. Foster, James H. Saunders, Alexander Brooks, Benjamin A. Bevis, Michael Kendrick, Eric Ericksen, Todd L. Avery, Jonathan Smalley, Robert, Jr. Cimbaro, Sergio R. Lenzano, Luis E. Barón, Jorge Báez, Juan Carlos Echalar, Arturo Asian School of the Environment Earth Observatory of Singapore Science::Geology Deformation Fault Slips 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 Mw 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. Published version 2020-12-21T07:35:34Z 2020-12-21T07:35:34Z 2019 Journal Article Weiss, J. R., Qiu, Q., Barbot, S., Wright, T. J., Foster, J. H., Saunders, A., . . . Echalar, A. (2019). Illuminating subduction zone rheological properties in the wake of a giant earthquake. Science Advances, 5(12), eaax6720-. doi:10.1126/sciadv.aax6720 2375-2548 https://hdl.handle.net/10356/145425 10.1126/sciadv.aax6720 32064315 12 5 en Science Advances © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). application/pdf |
| spellingShingle | Science::Geology Deformation Fault Slips Weiss, Jonathan R. Qiu, Qiang Barbot, Sylvain Wright, Tim J. Foster, James H. Saunders, Alexander Brooks, Benjamin A. Bevis, Michael Kendrick, Eric Ericksen, Todd L. Avery, Jonathan Smalley, Robert, Jr. Cimbaro, Sergio R. Lenzano, Luis E. Barón, Jorge Báez, Juan Carlos Echalar, Arturo Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title | Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title_full | Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title_fullStr | Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title_full_unstemmed | Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title_short | Illuminating subduction zone rheological properties in the wake of a giant earthquake |
| title_sort | illuminating subduction zone rheological properties in the wake of a giant earthquake |
| topic | Science::Geology Deformation Fault Slips |
| url | https://hdl.handle.net/10356/145425 |
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