Internal deformation detected within ‘rigid’ Indian plate: New study
A new study reveals that the Indian tectonic plate, previously thought to be rigid, is experiencing subtle internal deformation. High-precision GPS data from across India and Sri Lanka show distinct crustal movement patterns, especially north of the Narmada–Son Lineament. The findings could improve earthquake hazard assessments and geodynamic models in the region.
- ▪The study was published in the Royal Astronomical Society's journal Geophysical Journal International.
- ▪Researchers used data from 34 continuous GPS stations, including 17 from the GAGAN network, to detect deformation within the Indian Plate.
- ▪The Indian Plate moves northeast at about 50 millimetres per year due to its collision with the Eurasian Plate.
- ▪Regions north of the Narmada–Son Lineament show different movement patterns compared to the more stable southern region.
- ▪The research was led by P.S. Sunil of CUSAT, in collaboration with scientists from SAC-ISRO and AAI.
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| Canonical URL | https://www.thehindu.com/news/national/kerala/internal-deformation-detected-within-rigid-indian-plate-new-study/article70989921.ece |
| Publication time | Sun, 17 May 2026 14:44:09 +0530 |
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A new study has found evidence that the Indian tectonic plate, long considered a rigid crustal block, is undergoing “subtle” internal deformation. Using high-precision GPS data from stations across India and Sri Lanka, researchers identified distinct crustal movement patterns within the plate, particularly north of the Narmada–Son Lineament in the Central Indian Tectonic Zone (CITZ).Published in the Royal Astronomical Society’s peer-reviewed journal Geophysical Journal International, the study suggests that long-term tectonic stresses linked to the India–Eurasia collision could influence earthquake potential within the Indian subcontinent.The study was carried out by a research team led by P.S.
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