A Kinematically and Geometrically Validated 3-Dimensional Model of Active Faults in the Northridge Area Constrained by Earthquakes and Geologic Data

受地震和地质数据约束的北岭地区活动断层的运动学和几何验证三维模型

• 批准号: 9416222
• 负责人: Leonardo Seeber
• 金额: $ 5.6万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9416222&HistoricalAwards=false
• 关键词: Kinematically; Geometrically; Validated; Dimensional; Model

9416222 Seeber This project combines expertise in three areas to apply simultaneously earthquake and geologic constraints in the construction of a three-dimensional deformation model for the Northridge area. A state-of-the-art visualization and modelling algorithm will be used which allows the shape and kinematics of structures to vary in all directions and applies deformation constraints in three dimensions. Surface and near-surface data from the oil industry will be combined with Northridge aftershock data and data from prior seismicity. These data will be incorporated into the cross-sections constructed by collaborators to permit calculation of the convergence rates across the Transverse Ranges-Los Angeles Basin, and the amount of slip and slip rates of hidden thrusts. The results of this study will greatly assist understanding of the subsurface structures of the Los Angeles and San Fernando Valleys, and will provide much-needed geometrical and kinematic constraints for seismic hazard interpretations.

9416222见该项目结合了三个领域的专业知识，在北岭地区建立三维变形模型时同时应用地震和地质约束。将使用最先进的可视化和建模算法，允许结构的形状和运动学在所有方向上变化，并在三维上应用变形约束。来自石油行业的地表和近地表数据将与北岭余震数据和以前地震活动的数据结合在一起。这些数据将被合并到由合作者构建的横截面中，以允许计算横跨横贯山脉-洛杉矶盆地的会聚速率，以及隐藏推进体的滑移量和滑移率。这项研究的结果将极大地有助于了解洛杉矶和圣费尔南多山谷的地下结构，并将为地震危险性解释提供急需的几何和运动学约束。