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Dutta, Satyajit
- Accurate Location and Focal Mechanism of Small Earthquakes near Idukki Reservoir, Kerala: Implication for Earthquake Genesis
Abstract Views :222 |
PDF Views:88
Authors
Utpal Saikia
1,
S. S. Rai
1,
M. Subrahmanyam
2,
Satyajit Dutta
1,
Somasish Bose
1,
Kajaljyoti Borah
1,
Rishikesh Meena
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
2 Department of Geophysics, Andhra University, Visakhapatnam 530 003, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
2 Department of Geophysics, Andhra University, Visakhapatnam 530 003, IN
Source
Current Science, Vol 107, No 11 (2014), Pagination: 1885-1891Abstract
Earthquake waveform from a new temporary network of 21 seismic stations in South India has been used to significantly improve the detection threshold and parameters of small earthquakes near Idukki Reservoir, Kerala. We present here precise location of 16 earthquakes in this region with a local magnitude of 1.5-3.6 and focal depth 7.2-9.9 km. Fault plane solutions of the selected best six earthquakes show strikeslip faulting and right lateral movement. Reservoir loading usually leads to generation of stress and therefore earthquakes in the shallow depth (< 5 km), that are absent in the region of Idukki Reservoir. Recorded earthquakes are confined to a NW-SE trending fault close to Karur-Kamabam-Painavu-Trichur (KKPT) shear zone. These observations suggest that the earthquakes in Idukki region are tectonic in nature and have no linkage with the reservoir.Keywords
Earthquake Location, Fault Plane Solution, Reservoir, Tectonics.- 4d-QSAR:New Perspectives in Drug Design
Abstract Views :377 |
PDF Views:0
Authors
Affiliations
1 IIMT College of Medical Sciences, ‘O’ Pocket, Mawana Road, Ganga Nagar, Meerut-250001, Uttar Pradesh, IN
2 KIET, School of Pharmacy, Muradnagar, Ghaziabad-201206, Uttar Pradesh, IN
1 IIMT College of Medical Sciences, ‘O’ Pocket, Mawana Road, Ganga Nagar, Meerut-250001, Uttar Pradesh, IN
2 KIET, School of Pharmacy, Muradnagar, Ghaziabad-201206, Uttar Pradesh, IN