Exploring structural controls on great earthquake rupture and architecture of the Sumatra-Andaman convergent margin: A regional seismic reflection survey in collaboration with the

探索大地震破裂的结构控制和苏门答腊-安达曼会聚边缘的建筑：与

• 批准号: 0623165
• 负责人: Sean Gulick
• 金额: $ 35.01万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-12-01 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0623165&HistoricalAwards=false
• 关键词: Exploring; structural; controls; great; earthquake

This project will conduct a 7-day MCS add-on to a 2008 NERC-sponsored cruise to the area affected by the December 2004 Sumatran earthquake. The hypothesis to be tested is that landward-vergent (as opposed to seaward-vergent) thrusting promotes rupture to the deformation front, and consequent possibility for tsunamigenic earthquakes. The PIs suggest that such landward-vergent thrusting is present in the Sumatra area, and propose to constrain the deformation style by collection and analysis of seismic data. The data will be collected as an add-on to a German vessel under contract to UK/NERC.Broader impacts include greater understanding of a very seismogenic area of the world that produces tsunamis with the obvious societal relevance and collaborations with international (UK and German) scientists. In addition the PIs will make an effort to get underrepresented students involved in the study.

该项目将在2008年由NERC赞助的前往2004年12月苏门答腊岛地震受灾地区的邮轮上进行为期7天的MCS附加项目。要检验的假设是，向陆地的逆冲(而不是向海洋的)逆冲促进了形变前沿的破裂，并因此有可能引发海啸地震。PI表明，苏门答腊岛地区存在这种向陆地的逆冲，并建议通过收集和分析地震数据来约束变形样式。这些数据将作为与英国/NERC签约的一艘德国船只的附件收集。广泛的影响包括更好地了解世界上一个非常容易发生地震的地区，该地区会产生明显的社会相关性，以及与国际(英国和德国)科学家的合作。此外，PI将努力让代表性不足的学生参与到研究中来。