Examining Changes in Earthquake Triggering Behavior Across the Ocean-Continent Transition, Gulf of California

检查加利福尼亚湾海洋-大陆过渡区地震触发行为的变化

• 批准号: 0548785
• 负责人: Jeffrey McGuire
• 金额: $ 17.68万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-15 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0548785&HistoricalAwards=false
• 关键词: Examining; Changes; Earthquake; Triggering; Behavior

0548785McGuireAbstractThe PI will study seismicity in the Gulf of California to determine which rheological model applies to this region. The analysis will be based on observing the clustering of aftershocks and foreshocks, and relating these patterns to spatial variations in heat flow, stress transients, and geology. The PI has previously studied both ends of this system and views the Gulf of California as the best place to look for the transition from oceanic to continental environments. As a prelude to the study the PI will assemble an earthquake catalog for the region, which would also be useful to other researchers in the region.Broader impacts include contributing to education of a graduate student. This study also contributes to understanding the physics of earthquake nucleation and understanding the likely magnitude sequence in earthquakes will improve real-time hazard analysis in the study area.

PI将研究加州湾的地震活动性，以确定哪种流变模型适用于该地区。分析将基于观察余震和前震的聚集，并将这些模式与热流、应力瞬变和地质的空间变化联系起来。PI以前研究过这个系统的两端，并将加州湾视为寻找从海洋环境向大陆环境过渡的最佳地点。作为这项研究的前奏，PI将为该地区编制一份地震目录，这对该地区的其他研究人员也很有用。更广泛的影响包括为研究生的教育做出贡献。这项研究还有助于了解地震成核的物理学，了解地震中可能的震级序列将改善研究区域的实时灾害分析。