Global Positioning System (GPS) Constraints on Inter-Plate and Intra-Plate Deformation of the Indian Subcontinent

比勒姆0003449这是一项与印度科学家(班加罗尔、孟买和瓦迪亚研究所)为期五年的合作，旨在揭示印度板块运动和变形的细节。研究人员希望利用全球定位系统大地测量来限制印度的自转速度、沿喜马拉雅弧线收敛速度的变化率，以及过去两个世纪在那里爆发的大地震的一些细节。印度境内的大地测量将揭示印度板块变形的速度，并为未来板块中地震的发生速度和可能的位置提供洞察。最近发生的布吉7.6级地震，其研究是作为该项目的一部分启动的，与19世纪初困扰北美的罕见的板块中大地震有许多相似之处。因此，印度的地震灾害发现可能不仅有利于21世纪中叶的印度，届时印度将成为世界上人口最多的国家，也可能有利于美国，因为美国是未来板块中层地震造成的经济损失最大的国家。这项工作还包括绝对重力测量，以及F5绝对重力仪的维护和升级。此外，INT的启动资金还包括与白什瓦大学的巴基斯坦同事合作，对印度板块西缘进行地球动力学研究。

Bilham 0003449 This is a five-year collaboration with Indian scientists (Bangalore, Bombay and Wadia Institute) to unravel the details of movement and deformation of the Indian plate. The investigators expect to constrain the rotation rate of India, the rate of change of convergence velocity along the Himalayan arc, and some of the details of giant earthquakes that have ruptured there in the past two centuries using Global Positioning System geodesy. Geodetic measurements within India will reveal the rate at which the Indian plate is deforming and provide insights into the rate of occurrence, and possible location, of future mid-plate earthquakes. The recent Bhuj M=7.6 earthquake whose study has been initiated as part of this project, has many similarities to the infrequent great mid-plate earthquakes that afflicted North America in the early 19th century. Seismic hazard findings from India are thus likely not only to benefit mid-21st-century India, when it will be the most populous country in the world, but also the USA, the country that has the most to lose economically from future mid-plate earthquakes. This work also includes measurements of absolute gravity, as well as maintenance and upgrade of the F5 absolute gravimeter. Additionally, startup funds from INT are included for collaboration with Pakistani colleagues at the University of Peshewar for a geodynamic study of the western edge of the Indian Plate.