Collaborative Research: A Passive Broadband Seismic Experiment for Study of Subduction Zone and Backarc Structure and Tectonics in the Southwest Pacific

这项研究是一项研究人员之间的合作， 华盛顿大学、圣刘易斯、密苏里州和北卡罗来纳州 州立大学，罗利，北卡罗来纳州。 这笔资金将 支持使用PASSCAL便携式被动地震实验 由IRIS大学联盟管理的地震设备， 汤加、斐济和瓦努阿图地区。 地震发生 全世界的人都将被记录下来， 使用在上板处转换的相位的俯冲板 界面，沿板向上行进的相的分散，以及 在内部行进的相位之间的行进时间的比较， 在石板外面。 弧后盆地的构造将是 研究利用区域地震和SKS分裂， 怪怪的。 这项研究将改善有关来源的信息 最活跃深震带的深震过程 在世界上，以及提供更好的约束， 深板浅沟弧后盆地构造 地区

This research is a collaboration between investigators at Washington University, Saint Louis, Missouri, and North Carolina State University, Raleigh, North Carolina. The funding will support a passive seismic experiment utilizing the PASSCAL portable seismic equipment, managed by the IRIS university consortium, in the Tonga, Fiji, and Vanuatu regions. Earthquakes occurring throughout the world will be recorded to study the structure of subducting slabs using phases converted at the upper slab interface, dispersion of phases traveling up the slab, and comparison of travel times between phases traveling inside and outside of the slab. The structure of the back arc basin will be studied utilizing regional earthquakes and SKS splitting from teleseisms. This study will improve information about the source processes of deep earthquakes in the most active deep seismic zone in the world, as well as provide better constraints on the tectonics of the deep slab, shallow trench and back-arc basin regions.