Facility Support: The Global CMT Project

设施支持：全球 CMT 项目

• 批准号: 1249167
• 负责人: Goran Ekstrom
• 金额: $ 40.14万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1249167&HistoricalAwards=false
• 关键词: Facility; Support; Global; CMT; Project

The goal of the Global Centroid-Moment-Tensor Project (GCMT Project) is to analyze and quantify all moderate and large earthquakes occurring worldwide using seismic data, and to provide the most comprehensive record of global seismic strain release available. Data from global seismographic networks are collected from the IRIS Data Management Center (DMC) and from individual network operators in near-real time for the analysis of large earthquakes. Additional archived data are later retrieved from the IRIS DMC to determine final results and to investigate events of smaller magnitude.The major objectives and activities of the GCMT Project are:1. Systematic determination of moment tensors for earthquakes with magnitude M5 globally, and archiving of the results in the GCMT catalog.2. Rapid determination of moment tensors for earthquakes with M5.5 globally, and quick dissemination of the results ("quick CMTs").3. Curation and distribution of the GCMT catalog, which contains moment-tensor results for the period 1976 to the present, currently more than 35,000 earthquakes.4. Routine detection and location of seismic sources using surface waves. 5. Investigation and reporting of the quality of seismic waveforms from the Global Seismographic Network other seismic networks. 6. Systematic analysis of earthquake sequences of special importance.

全球质心态项目（GCMT项目）的目标是使用地震数据在全球范围内分析和量化所有中度和大型地震，并提供可用的全球地震菌株释放记录。来自IRIS数据管理中心（DMC）的全球地震网络网络的数据和在近乎现实的大地震分析的情况下收集了各个网络运营商。后来从IRIS DMC中检索了其他存档数据，以确定最终结果并研究较小幅度的事件。GCMT项目的主要目标和活动为：1。系统的确定全球幅度M5地震的矩张量，并在GCMT目录中存档结果。2。快速确定全球M5.5地震的力矩张量，并快速传播结果（“快速CMTS”）。3。 GCMT目录的策展和分布，其中包含1976年期间的力矩调整结果，目前超过35,000次地震4。使用表面波的地震源的常规检测和位置。 5。调查和报告全球地震网络其他地震网络的地震波形质量。 6。对特殊重要性的地震序列进行系统分析。