Nine years of GPS measurements of crustal deformation at Imphal, Indo-Burmese wedge

Singh, Laishram Sunil ; Gahalaut, V. K. ; Kumar, Arun (2014) Nine years of GPS measurements of crustal deformation at Imphal, Indo-Burmese wedge Journal of the Geological Society of India, 83 (5). pp. 513-516. ISSN 0016-7622

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Official URL: https://link.springer.com/article/10.1007/s12594-0...

Related URL: http://dx.doi.org/10.1007/s12594-014-0078-2

Abstract

We report results of 9 years of GPS measurements of crustal deformation at Imphal, Manipur, a site located in the Indo-Burmese wedge of northwest Sunda arc. The analysis of these measurements suggests that the site moves at a rate of about 36.3±0.5 mm/year towards N55° in the ITRF2008. With respect to the Indian plate it moves at a rate of 16.7 mm/year towards N222°, i.e., predominantly towards southwest. The site is located about 15 km east of the Churachandpur Mao fault (CMF), which is reported to accommodate part of the India-Sunda motion. The site motion is not significantly affected by the earthquakes that occurred in the nearby region. However, the 2004 Sumatra-Andaman earthquake caused a coseismic displacement of ∼ 3–5 mm predominantly towards southwest. The site motion is almost linear, with some seasonal variation, and does not show any evidence of accelerated slip or slow earthquake on the CMF or along the plate boundary.

Item Type:Article
Source:Copyright of this article belongs to Springer Verlag.
Keywords:GPS; Crustal Deformation; Indo-Burmese Wedge; Manipur
ID Code:112922
Deposited On:07 Jun 2018 08:53
Last Modified:07 Jun 2018 08:53

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