Post-seismic deformation associated with the 2001 Bhuj earthquake

Choudhury, Pallabee ; Catherine, J. K. ; Gahalaut, V. K. ; Chopra, Sumer ; Dumka, Rakesh ; Roy, Ketan Singha (2013) Post-seismic deformation associated with the 2001 Bhuj earthquake Natural Hazards, 65 (2). pp. 1109-1118. ISSN 0921-030X

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We report the results of GPS measurements of post-seismic deformation due to the 2001 Bhuj earthquake in the Kachchh region, western India. The estimated horizontal velocity vectors in ITRF05 are in the range of 48–49 mm/year in N46–50°E. The observed velocity at the Gandhinagar permanent site, a far off site from the earthquake source region and probably unaffected by the post-seismic deformation, is 49 ± 1 mm/year in N47°E, which is consistent with the predicted motion of Indian plate at Gandhinagar. At other sites in the source region, transient post-seismic deformation is found to be low; it attenuated rapidly within 3–4 years of the earthquake and is much low now. Our results support the idea that mantle rheology is weak in the region.

Item Type:Article
Source:Copyright of this article belongs to International Society for the Prevention and Mitigation of Natural Hazards.
Keywords:Global Positioning System (GPS); Post-seismic Deformation; Bhuj Earthquake
ID Code:112996
Deposited On:07 Jun 2018 09:01
Last Modified:07 Jun 2018 09:01

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