Facility Support: Continued capture of postseismic deformation using GPS instrumentation on the Andaman Islands due to the great 2004 and 2012 earthquakes

设施支持：使用 GPS 仪器持续捕获安达曼群岛因 2004 年和 2012 年大地震而发生的震后形变

• 批准号: 1531682
• 负责人: John Puchakayala
• 金额: $ 5.23万
• 依托单位: University of Memphis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1531682&HistoricalAwards=false
• 关键词: Facility; Support; Continued; capture; postseismic

1531682PuchakayalaThis grant supports one year of continued operations and maintenance of a five-receiver, continuously operating GPS network in the Andaman Islands that was established soon after the 2004 Boxing Day (December 26) mega earthquake (Mw 9.3) near Sumatra that resulted in over 200,000 casualties across the region largely resultant the tsunami that was generated. GPS data collected from this network can be used to address a fundamental yet unresolved debate about crustal deformation following very large earthquakes, namely whether fault afterslip or viscoelastic relaxation of the crust and upper mantle are the main driving forces of observed postseismic transient deformation. The Boxing Day 2004 earthquake is arguably one of the three most important earthquakes available for modern geodetic study in the historical record. Continuity of GPS observations can result in advanced knowledge of the earthquake deformation cycle and fault behavior that has tremendous potential benefit for hazards mitigation in seismogenically active areas of the world including the U.S. Data from this GPS network have been and would continue to be made freely available through the UNAVCO GPS Data archive. Operation of the network would involve collaboration with scientists and staff at a local academic institution (JNCASR, Bangalore). This support is congruent with NSFs mission of promoting the progress of science and may advance the national prosperity and welfare through advancing knowledge of the earthquake cycle and promoting sound earthquake hazard mitigation strategies.***

1531682 Puchakayalathis Grant支持一年的持续运营，并维持在安达曼群岛的五接收机，连续运营的GPS网络，该网络在2004年拳击日（12月26日）Mega Eastquake（MW 9.3）附近建立了200,000多个超过200,000次，该网络在200,000多个士兵之后整个地区的伤亡很大程度上导致了产生的海啸。 从该网络中收集的GPS数据可用于解决大地震后关于地壳变形的基本但尚未解决的辩论，即肩lip落后置和粘弹性放松是在地壳和上层地幔的断层是观察到的后观测后瞬态变形的主要驱动力。 节礼日的2004年地震可以说是历史记录中现代大地测量研究的三个最重要的地震之一。 GPS观测的连续性可能会导致对地震变形周期和断层行为的高级知识，从而在世界上具有巨大的潜在危害危险中，包括来自该GPS网络的美国数据，并将继续免费提供。通过UNAVCO GPS数据存档。 该网络的运营将涉及与当地学术机构（班加罗尔JNCASR）的科学家和员工合作。 这种支持与NSFS的使命是促进科学进步的任务，并通过促进地震周期的知识并促进良好的地震危害危害策略来促进国家的繁荣和福利。***