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

Geodesy and Geodynamics

Rakesh K. Dumka¹  Joydeep Paikray²  Sandip Prajapati³  Ajay K. Taloor⁴  Kandadai V. Swamy⁵  Donupudi Suribabu⁵  Girish Ch. Kothyari⁵  Mahesh Thakkar⁵ 

[1] Adikavi Nannaya University, RajahMundary, A.P, India;Corresponding author. Institute of Seismological Research, Raysan, Gandhinagar, Gujarat, 382009, India.;Adikavi Nannaya University, RajahMundary, A.P, India;Department of Earth and Environmental Science, KSKV University, Bhuj, Kachchh, India;Institute of Seismological Research, Raysan, Gandhinagar, Gujarat, 382009, India;

关键词: Geodesy;    GNSS;    Deformation;    Strain;    Indian plate;   

DOI  :  

来源: DOAJ

【 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.

【 授权许可】

Unknown