Historical Earthquake Relocation

历史地震搬迁

• 批准号: 9725140
• 负责人: Antonio Villasenor
• 金额: $ 9.38万
• 依托单位: Colorado School of Mines
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725140&HistoricalAwards=false
• 关键词: Historical; Earthquake; Relocation

9725140 Villasenor This research is a continuation of a cooperative effort between the Colorado School of Mines and the U.S. Geological Survey to systematically relocate historical seismicity based on travel-time information compiled in several catalogs of global seismicity. A final product from this project, a consistent global earthquake catalog covering the 20th Century, will triple the length of the current earthquake data bases. Earthquakes are relocated using a new location algorithm that dynamically re-identifies earthquake phases based on the probability density function of each phase's arrival time derived from modern observations. This research is a component of the National Earthquake Hazard Reduction Program. ***

9725140 Villasenor 这项研究是科罗拉多矿业学院和美国地质调查局之间合作努力的延续，旨在根据多个全球地震活动目录中汇编的走时信息系统地重新定位历史地震活动。 该项目的最终产品是涵盖 20 世纪的一致的全球地震目录，将使当前地震数据库的长度增加三倍。 使用新的定位算法重新定位地震，该算法根据现代观测得出的每个震相到达时间的概率密度函数动态地重新识别地震震相。 这项研究是国家地震减灾计划的一部分。 ***