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Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019

We present GPS velocities in Kashmir valley and adjoining regions from continuous Global Positioning System (cGPS) network during 2008 to 2019. Results indicate total arc normal shortening rates of ~ 14 mm/year across this transect of Himalaya that is comparable to the rates of ~ 10 to 20 mm/year re...

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Autores principales: Jade, Sridevi, Mir, Ramees R., Vivek, Chiranjeevi G., Shrungeshwara, T. S., Parvez, I. A., Chandra, Rakesh, Babu, D. Suri, Gupta, S. Vishal, Ankit, Rajana, Siva Sai Kumar, Gaur, V. K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7577991/
https://www.ncbi.nlm.nih.gov/pubmed/33087736
http://dx.doi.org/10.1038/s41598-020-74776-5
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author Jade, Sridevi
Mir, Ramees R.
Vivek, Chiranjeevi G.
Shrungeshwara, T. S.
Parvez, I. A.
Chandra, Rakesh
Babu, D. Suri
Gupta, S. Vishal
Ankit
Rajana, Siva Sai Kumar
Gaur, V. K.
author_facet Jade, Sridevi
Mir, Ramees R.
Vivek, Chiranjeevi G.
Shrungeshwara, T. S.
Parvez, I. A.
Chandra, Rakesh
Babu, D. Suri
Gupta, S. Vishal
Ankit
Rajana, Siva Sai Kumar
Gaur, V. K.
author_sort Jade, Sridevi
collection PubMed
description We present GPS velocities in Kashmir valley and adjoining regions from continuous Global Positioning System (cGPS) network during 2008 to 2019. Results indicate total arc normal shortening rates of ~ 14 mm/year across this transect of Himalaya that is comparable to the rates of ~ 10 to 20 mm/year reported else-where in the 2500 km Himalaya Arc. For the first time in Himalayas, arc-parallel extension rate of ~ 7 mm/year was recorded in the Kashmir valley, pointing to oblique deformation. Inverse modeling of the contemporary deformation rates in Kashmir valley indicate oblique slip of ~ 16 mm/year along the decollement with locking depth of ~ 15 km and width of ~ 145 km. This result is consistent with the recorded micro-seismicity and low velocity layer at a depth of 12 to 16 km beneath the Kashmir valley obtained from collocated broadband seismic network. Geodetic strain rates are consistent with the dislocation model and micro-seismic activity, with high strain accumulation (~ 7e−08 maximum compression) to the north of Kashmir valley and south of Zanskar ranges. Assuming the stored energy was fully released during 1555 earthquake, high geodetic strain rate since then and observed micro-seismicity point to probable future large earthquakes of Mw ~ 7.7 in Kashmir seismic gap.
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spelling pubmed-75779912020-10-23 Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019 Jade, Sridevi Mir, Ramees R. Vivek, Chiranjeevi G. Shrungeshwara, T. S. Parvez, I. A. Chandra, Rakesh Babu, D. Suri Gupta, S. Vishal Ankit Rajana, Siva Sai Kumar Gaur, V. K. Sci Rep Article We present GPS velocities in Kashmir valley and adjoining regions from continuous Global Positioning System (cGPS) network during 2008 to 2019. Results indicate total arc normal shortening rates of ~ 14 mm/year across this transect of Himalaya that is comparable to the rates of ~ 10 to 20 mm/year reported else-where in the 2500 km Himalaya Arc. For the first time in Himalayas, arc-parallel extension rate of ~ 7 mm/year was recorded in the Kashmir valley, pointing to oblique deformation. Inverse modeling of the contemporary deformation rates in Kashmir valley indicate oblique slip of ~ 16 mm/year along the decollement with locking depth of ~ 15 km and width of ~ 145 km. This result is consistent with the recorded micro-seismicity and low velocity layer at a depth of 12 to 16 km beneath the Kashmir valley obtained from collocated broadband seismic network. Geodetic strain rates are consistent with the dislocation model and micro-seismic activity, with high strain accumulation (~ 7e−08 maximum compression) to the north of Kashmir valley and south of Zanskar ranges. Assuming the stored energy was fully released during 1555 earthquake, high geodetic strain rate since then and observed micro-seismicity point to probable future large earthquakes of Mw ~ 7.7 in Kashmir seismic gap. Nature Publishing Group UK 2020-10-21 /pmc/articles/PMC7577991/ /pubmed/33087736 http://dx.doi.org/10.1038/s41598-020-74776-5 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jade, Sridevi
Mir, Ramees R.
Vivek, Chiranjeevi G.
Shrungeshwara, T. S.
Parvez, I. A.
Chandra, Rakesh
Babu, D. Suri
Gupta, S. Vishal
Ankit
Rajana, Siva Sai Kumar
Gaur, V. K.
Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title_full Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title_fullStr Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title_full_unstemmed Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title_short Crustal deformation rates in Kashmir valley and adjoining regions from continuous GPS measurements from 2008 to 2019
title_sort crustal deformation rates in kashmir valley and adjoining regions from continuous gps measurements from 2008 to 2019
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7577991/
https://www.ncbi.nlm.nih.gov/pubmed/33087736
http://dx.doi.org/10.1038/s41598-020-74776-5
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