Collaborative research: RUI: Seismicity and Velocity Structure of Lo`ihi Submarine Volcano

该奖项是根据2009年《美国复苏和再投资法案》(公法111-5)提供资金的。洛伊希火山是一座海底活火山，也是夏威夷链中最新的一座火山。作为夏威夷火山活动海底阶段的唯一例子，Lo`ihi是了解年轻热点火山的演化和活动的绝佳机会。然而，尽管人们对洛伊希的形态、岩石学、化学和微生物学有了大量的了解，但以前对洛伊希地震活动和内部结构的研究因数据质量差或缺乏仪器而受阻。因此，我们对这座被描述为世界上研究最深入的海底火山之一的理解存在重大差距。该项目的主要目标是调查地震活动和海底洛伊希火山的内部结构，方法是在火山上安装一个海底地震仪网络，对洛伊希火山的地震活动进行首次高分辨率研究，包括对其内部结构进行详细的二维层析成像。该项目是一项试验性研究，目的是更多地了解洛伊希火山，目标是最终对该地区进行主动和被动震源地震研究，对洛伊希火山和周围地区进行全面的三维层析研究，并成像这座海底火山和夏威夷羽流之间的联系？上升的炽热物质柱，被认为是夏威夷火山爆发的原因。这项研究的更广泛影响集中在本科生研究和教育上。本科生将参与该项目的所有级别，从在邮轮上担任守望者，到参与数据质量控制，以及分析数据。作为研究经验的一部分，本科生将担任地球物理入门课程的客座讲师，向他们的同龄人传授地震分析。他们的工作最终将在地方或国家会议上展示他们的研究成果。该项目的数据还将用于牵头机构的地球物理学入门课程。两名硕士研究生和一名博士后也将参与该项目。同样重要的是，西华盛顿大学是一所主要是本科生的机构，该项目将支持一名职业生涯早期的女性调查员。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Lo`ihi is an active submarine volcano and the newest volcano in the Hawaiian Chain. As the only example of the submarine phase of Hawaiian volcanism, Lo`ihi represents an excellent opportunity to understand the evolution and activity of a young hot spot volcano. However, while a great deal has been learned about Lo`ihi's morphology, petrology, chemistry and microbiology, previous studies of Lo`ihi seismicity and internal structure have been hindered by poor data quality or a lack of instrumentation. Consequently, there is a major gap in our understanding of what has been described as one of the world's best-studied submarine volcanoes. The primary goal of this project is to investigate earthquake activity and the internal structure of the undersea Lo`ihi volcano by installing a network of ocean bottom seismometers on the volcano to perform the first high resolution study of Lo`ihi's seismicity, including a detailed 2-D tomographic image of its internal structure. The project is a pilot study to learn more about Lo`ihi with the goal of eventually performing a combined active and passive source seismic study of the region to perform a full 3-D tomographic study of Lo`ihi and the surrounding area and image the connection between this submarine volcano and the Hawaiian plume ? a rising column of hot material that is thought to be the cause of volcanism in Hawaii. The broader impacts of this study focus on undergraduate research and education. Undergraduates will participate at all levels of the project, from serving as watchstanders on the cruises, to participating in data quality control, and analyzing data. As part of their research experience, the undergraduates will act as guest instructors in introductory geophysics courses, teaching their peers about seismic analysis. Their work will culminate in the presentation of their research at local or national conferences. Data from the project will also be used in introductory geophysics curricula at the lead institution. Two masters students and a postdoctoral fellow will also participate in the project. Also significant are the fact the Western Washington University is a principally undergraduate institution and that this project will support an early career female investigator.