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 NERC 赞助的前往受 2004 年 12 月苏门答腊地震影响的地区的巡航中进行为期 7 天的 MCS 附加活动。要检验的假设是，向陆地偏转（与向海偏转相反）的推力会促进变形前沿的破裂，从而可能引发海啸地震。 PI认为苏门答腊地区存在这种向陆地偏转的逆冲，并建议通过收集和分析地震数据来限制变形方式。这些数据将作为与英国/NERC签订合同的德国船只的附加装置进行收集。更广泛的影响包括更好地了解世界上一个非常容易引发海啸的地区，该地区产生具有明显社会意义的海啸以及与国际（英国和德国）的合作）科学家。此外，PI 将努力让代表性不足的学生参与研究。