Modeling transient and long-term postseismic deformation: A case study of 1995 Mw9.5 Chile earthquake

• 来源期刊: 地震学报（英文版）
• 学科: 地球科学
• 年，卷（期）: 2008,（4）
• 页码范围: 406-416
• 页数: 11页
• 分类号: P315.72+5
• 语种: 英文

摘要

In this paper, we firstly use finite element method (FEM) with Burgers model to simulate the postseismic viscoe- lastic relaxation taking 1960 Chile earthquake as an example. The postseismic deformation modeled with Burgers model includes co-seismic deformation, transient postseismic deformation and long-term postseismic deformation. So if we apply Burgers model to calculate postseismic deformation of 1960 Chile earthquake, there is no discrep- ancy phenomenon due to different durations of postseismic deformations that happens in Maxwell model.