CAREER: An Integrated Geologic, Geodetic, and Paleoseismic Study of Plate Boundary Stress Evolution and Geoscience Education Utilizing the EarthScope Database

该项目的重点是利用地质、大地测量和古地震数据约束的含时断层变形模型，研究太平洋-北美板块边界的应力演化与该地区大地震发生的关系。地球镜正在领导一项大规模的社区努力，通过越来越多的地震和大地测量仪器档案，了解太平洋-北美板块边界沿线地震灾害的性质。这些仪器现在准备捕捉即将发生的重大地震事件的关键细节，然而，跨越整个地震周期的应力演变的3D天气图需要复杂的计算机模型，并结合改进的古地震年代学。为了研究板块边界的地震旋回应力演化，本项目综合了几个EarthScope数据产品和半解析地壳形变模拟技术。这些工作包括：(1)纳入社区定义的断层位置和几何形状，(2)整合EarthScope InSAR和板块边界观测站GPS数据，(3)分析新的古地震断层历史，以及(4)探索新的断层模型能力。这项拟议工作的一个重要组成部分还旨在为学生和教师开发K-16教育工具和机会，并向公众提供相关和可获得的地震信息。该项目的这一部分重点是(1)整合可视化技术、EarthScope互联网资源和地球科学教学模块，为K-12职前和在职教师开设地球科学计算机硕士课程，(2)开发EarthScope活动地球信息亭展示，突出显示该项目的研究成果、当地和地区的地球科学以及地球科学职业故事，以及(3)当地高中生参加由德克萨斯大学埃尔帕索分校主办的持续教育项目“地球科学夏令营之路”。该项目正在探索的基础地震科学和推广举措具有重大的社会意义，因为依赖时间的地震应力模拟不久将有助于减轻地震灾害，并改变公众对大规模、随时间演变的地球过程的概念和理解。

The project is focused on studying the relationship between stress evolution of the Pacific-North American plate boundary and the occurrence of major earthquakes in this region using time-dependent fault deformation models constrained by geologic, geodetic, and paleoseismic data. EarthScope is leading a large-scale community effort to understand the nature of earthquake hazards along the Pacific-North American plate boundary through a growing archive seismic and geodetic instruments. These instruments are now prepared to capture critical details of pending major seismic events, however a 3D synoptic picture of stress evolution spanning the full earthquake cycle requires sophisticated computer models, combined with improved paleoseismic chronologies. To investigate earthquake cycle stress evolution of the plate boundary, this project synthesizes several EarthScope data products with semi-analytic crustal deformation modeling techniques. These efforts include: (1) inclusion of community-defined fault locations and geometries, (2) integration of EarthScope InSAR and Plate Boundary Observatory GPS data, (3) analysis of new paleoseismic faulting histories, and (4) exploration of new fault model capabilities. A significant component of this proposed work also aims to develop K-16 educational tools and opportunities for both students and teachers, and to provide pertinent and accessible earthquake information to the general public. This portion of the project emphasizes (1) integration of visualization technologies, EarthScope Internet resources, and Earth science teaching modules for a masters-level Computers in Earth Science course for pre- and in-service K-12 teachers, (2) development of an EarthScope Active Earth kiosk display, highlighting this project's research results, local and regional EarthScope science, and Earth science career stories, and (3) participation of local high school students in the Pathways to the Geosciences summer camp, an ongoing educational program hosted by the University of Texas at El Paso. The fundamental earthquake science and outreach initiatives being explored by this project have substantial societal relevance, as time-dependent earthquake stress simulations will soon be poised to help mitigate seismic hazards and to transform the public's conception and appreciation of large-scale, temporally evolving Earth processes.