Coupled Evolution of Earthquakes and Faults in a Rheologically-Layered Half-Space

本-锡安本-锡安的研究包括研究区域地震活动性、地震变形和维持形变的断层系统网络的同时演化，这是先前三维模拟的延续。目标是为理解区域地震的时空模式、不同变形模式之间的相互关系、断层的结构特性、脆性地壳及其韧性环境的流变特性建立物理基础。这项工作将采用一个模型，在由层状弹性/粘弹性半空间组成的结构中结合变形和时间相关的损伤流变学。这项工作将尝试在参数空间中绘制不同结构和流变特性可能产生的地壳反应的基本类型，了解不同反应的基本特征，并研究基于地震活动模式预测地震的可能性。这项研究是国家减少地震危害计划的一个组成部分。* * *

9725358 Ben-Zion This research involves the study of the simultaneous evolution of regional seismicity, aseismic deformation, and the network of fault systems sustaining the deformation in a continuation of prior 3-D simulations. The goal is to establish a physical basis for understanding spatio-temporal patterns of regional earthquakes, and the interrelations between different modes of deformation, structural properties of faults, and rheological properties of the brittle crust and its ductile surroundings. The work will employ a model incorporating deformation- and time-dependent damage rheology in a structure consisting of a layered elastic/viscoelastic half- space. The work will attempt to map in parameter space the basic types of crustal response that are possible for different structural and rheological properties, understand the essential characteristics of the different responses, and examine the possibility of earthquake prediction based on seismicity patterns. This research is a component of the National Earthquake Hazard Reduction Program. ***