...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Seismological research letters >Role of Poroelasticity and Viscoelasticity during the Postseismic Deformation of the 2021 M_w 7.4 Maduo, China, Earthquake
【24h】

Role of Poroelasticity and Viscoelasticity during the Postseismic Deformation of the 2021 M_w 7.4 Maduo, China, Earthquake

机译：

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

The 2021 M_w 7.4 Maduo earthquake within the Bayan Har block allows us to understand the lithospheric mechanical properties in northeastern Tibet. We analyze possible postseismic processes by modeling the six-month postseismic deformation from Interferometric Synthetic Aperture Radar data. Our optimal afterslip-poroviscoelastic model is not only physically more reasonable but also has the best data fit. The postseismic deformation is dominated by afterslip located at depths of 10-20 km, revealing a complementary pattern with the up-dip high-coseismic slip. Yet ignoring poroelasticity and viscoelasticity will result in errors in afterslip of >12 cm locally. Poroelastic rebound contributes to significant postseismic line of sight (LoS) deformation, up to ~14 mm, near the northwest and southeast fault segments. The steady-state viscosities in the lower crust and upper mantle are 4× 1019 Pa?s and 2 × 1020 Pa?s, respectively, consistent with the "jelly sandwich" model but not with the crustal-flow models featuring much lower viscosity.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号