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3D modeling of long-term slow slip events along the flat-slab segment in the Guerrero Seismic Gap, Mexico

Perez-Silva, Andrea, Duo Li, Alice-Agnes Gabriel, and Yoshihiro Kaneko (2021), 3D modeling of long-term slow slip events along the flat-slab segment in the Guerrero Seismic Gap, Mexico, Geophysical Research Letters, 48(13), doi:10.1029/2021GL092968.

Abstract
During the last two decades, quasi-periodic long-term slow-slip events (SSEs) of magnitudes up to Mw7.5 have been observed about every 4 years in the Guerrero Seismic Gap. Here we present numerical simulations of the long-term SSE cycles along the 3D slab geometry of central Mexico. Our model accounts for the hydrated oceanic crust in the framework of rate-and-state friction. The modeled SSE cycles capture the major source characteristics of the long-term SSEs occurring from 2001 to 2014, as inferred from geodetic observations. Synthetic surface deformation calculated from simulated fault slip is also in good agreement with the cumulative GPS displacements. Our results suggest that the flat segment of the Cocos plate aids the large magnitudes and long recurrence intervals of the long-term SSEs. We conclude that 3D slab geometry is an important factor in furthering our understanding of the physics of slow slip events.
Further information
BibTeX
@article{id2675,
  author = {Andrea Perez-Silva and Duo Li and Alice-Agnes  Gabriel and Yoshihiro Kaneko},
  journal = {Geophysical Research Letters},
  number = {13},
  title = {{3D modeling of long-term slow slip events along the flat-slab segment in the Guerrero Seismic Gap, Mexico}},
  volume = {48},
  year = {2021},
  url = {https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL092968},
  doi = {10.1029/2021GL092968},
}
EndNote
%0 Journal Article
%A Perez-Silva, Andrea
%A Li, Duo
%A Gabriel, Alice-Agnes 
%A Kaneko, Yoshihiro
%D 2021
%N 13
%V 48
%J Geophysical Research Letters
%T 3D modeling of long-term slow slip events along the flat-slab segment in the Guerrero Seismic Gap, Mexico
%U https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL092968
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Printed 02. Dec 2021 18:01