Geodetic characterization of active Katrol Hill Fault(KHF)of Central Mainland Kachchh,western India  

作　　者：Donupudi Suribabu Rakesh K.Dumka Joydeep Paikray Girish Ch.Kothyari Mahesh Thakkar Kandadai V.Swamy Ajay K.Taloor Sandip Prajapati 

机构地区：[1]Institute of Seismological Research,Raysan,Gandhinagar,Gujarat,382009,India [2]Department of Earth and Environmental Science,KSKV University,Bhuj,Kachchh,India [3]Adikavi Nannaya University,RajahMundary,A.P,India [4]Department of Remote Sensing and GIS,University of Jammu,Jammu,India

出　　处：《Geodesy and Geodynamics》2022年第3期247-253,共7页大地测量与地球动力学（英文版）

基　　金：Director-General,ISR&DST-Govt.of Gujarat,for the necessary support to carry out the research work。

摘　　要：After the M7.7 earthquake in 2001,the Kachchh rift basin became the focus of various geological and geophysical researches on the western Indian plate.As an essential technology,the Global Navigation Satellite System(GNSS)has been utilized to study the deformation pattern in the central mainland Kachchh.We select the east-west striking Katrol Hill Fault(KHF)as the study area and analyze the crustal deformation pattern using the datasets from 2014 to 2019.The geodetic results along the KHF reveal a mean deformation of about 2.1 mm per year,which is higher in the eastern part and lower in the central and western parts.The investigation of deformation and derived strain reveals the segmented behavior of KHF,while the dominance of compressive strain(maximum 22 nanostrain/yr)in the eastern segment makes it the most active segment of the KHF.A higher deformation rate along the eastern KHF can be considered significant in terms of seismic hazard for this part of the Indian plate.

关 键 词：GEODESY GNSS Deformation Strain Indian plate 

分 类 号：P315[天文地球—地震学] P22[天文地球—固体地球物理学]