A Kinematic Study of Suspected Major Active Shear/Fault Zones in the West Southern Peninsular Shield of India. Implications on Seismo Genesis.
IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore
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| Title |
A Kinematic Study of Suspected Major Active Shear/Fault Zones in the West Southern Peninsular Shield of India. Implications on Seismo Genesis.
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| Creator |
Jade, Sridevi
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| Subject |
GNSS/GPS Geodesy
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| Description |
Earthquakes of Indian Peninsular shield result primarily from intraplate deformation caused by the Indo-Eurasian convergence. They fall in the category termed as 'Stable continental Region Events'. Monitoring of these events in the region is of paramount importance as many undetected seismogenic faults may be responding to the present crustal deformation processes. The urgency for understanding the seismogenic potential in the region is underlined by the fact that the shield region in recent times has experienced unusually higher seismic activity. Quantitative estimate of seismic hazard in the region require i) identification of potential fault/shear zones which show considerable seismic activity through high resolution mapping of microtremors ii) quantifying the time varying deformation field across suspected active faults/fractures in the region. In the present study, we propose to undertake repeat GPS measurements in the southwestern Indian Shield region to study the time evolving deformation field along suspected active faults/shear zones which could prove to be seismically active. The region is covered by several major shear/faults such as Mayar-Bhavani, Bavali, Palghat-Cauvery, Achankoil etc., (Fig. 1). Many of the low to moderate earthquakes that have occurred in the region appear to be spatially correlated with some of these shear zones. Gravity and magnetic investigations in the region indicate that some of the shear/fault zones are characterised by strong gradients across them.
Keywords : GPS; Deformation; Active faults; Southwest Indian shield.
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| Publisher |
CSIR Centre for Mathematical Modelling and Computer Simulation
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| Date |
2002-03
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| Type |
Monograph
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cir.cmmacs.ernet.in/255/1/PP%20CM%200201.pdf
Jade, Sridevi (2002) A Kinematic Study of Suspected Major Active Shear/Fault Zones in the West Southern Peninsular Shield of India. Implications on Seismo Genesis. Other. CSIR Centre for Mathematical Modelling and Computer Simulation , C-MMACS,Bangalore 560037,India. (Unpublished) |
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| Relation |
http://cir.cmmacs.ernet.in/255/
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