SGER: Collaborative Studies: Field Investigation of Transient Effects of the 2001 Republic Day, India Earthquake

EAR-0119198 Zollweg项目摘要“合作研究：2001年印度共和国日地震的瞬时效应的现场调查”正在对2001年1月26日印度毁灭性地震进行实地地震和地质研究，以收集有关瞬时现象的信息，包括余震和地表效应。这次地震被称为共和国日地震，震级约为7.7级，是一次不寻常的地震。它发生在印度西部，远离印度和欧亚大陆之间的板块边界。共和国日地震是一次板内地震，具有不寻常的特征。一个由大约24个地震仪组成的网络将运行3至6个月，以记录和定位余震。将进行相关的野外地质研究，以了解主震产生的液化和其他地表效应。对于如此大的地震(25公里)，主震的震源在地壳中相对较深，没有发现地表断层。来自临时网络的录音将有助于确认主震的深度以及有关主震故障机制的信息。

EAR-0119198ZollwegAbstract for Project "Collaborative Research: Field Investigation of Transient Effects of the 2001 Republic Day, India Earthquake"Field seismological and geological studies of the devastating earthquake of January 26, 2001 in India are being carried out to collect information about transient phenomena, including aftershocks and surface effects. This earthquake, called the Republic Day earthquake, had a magnitude of about 7.7 and was an unusual earthquake. It occurred in western India, far from the plate boundary between India and Eurasia. The Republic Day earthquake was an intraplate earthquake, with unusual characteristics. A network of about two dozen seismographs is to be operated for a period of 3 to 6 months to record and locate aftershocks. Related field geological studies are to be done to learn about the liquefaction and other surface effects produced by the mainshock. The hypocenter of the mainshock was relatively deep in the crust for such a large earthquake (25 km) and no surface faulting has been found from it. Recordings from the temporary network will help confirm the depth of the mainshock as well as information about the mainshock fault mechanism.