Waveform Analysis of Earthquake Multiplets and Clusters

多次地震和地震群的波形分析

• 批准号: 9405498
• 负责人: Gregory Beroza
• 金额: $ 8.9万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405498&HistoricalAwards=false
• 关键词: Waveform; Analysis; Earthquake; Multiplets; Clusters

9405498 Beroza This research is to analyze earthquake multiplets and clusters using digital waveform data from the Calnet seismic network in northern California. The goals of the study are to 1) develop a catalog of similar earthquakes for northern and central California in order to study the factors that influence the occurrence of multiplets, presumably creep-related, and 2) to detect and understand changes in crustal wave propagation associated with a major earthquake. Preliminary work has detected co-seismic and possibly pre-seismic velocity changes related to the 1989 Loma Prieta earthquake, and these phenomena will be investigated in more detail. This research is a component of the National Earthquake Hazard Reduction Program. ***

小行星9405498 本研究利用北方加州Calnet地震台网的数字波形资料，分析多震和群震。 本研究的目标是：1）为北方和加州中部建立一个类似地震的目录，以研究影响多重地震发生的因素，可能与蠕变有关; 2）检测和了解与大地震相关的地壳波传播变化。 初步工作已探测到与1989年洛马普列塔地震有关的同震和可能震前速度变化，将对这些现象进行更详细的调查。 这项研究是国家地震减灾计划的一个组成部分。 ***