Seismichazard projects


NGRI NEWS
 
 

                                                                 AREA : SEISMIC HAZARD

Project Title:
 
 Lithosperic structure, deformation and Tectonics of the Eastern Himalaya and Andaman Arc Regions
Project Number:
   MLP-6402-28 (MRK)
Project Leader:
   M. Ravi Kumar
Co-Project Leader:
   N. Purnachandra Rao
Duration:
   April 2009 - March 2012

  Objectives:

The project is aimed at investigating the dynamics of subduction at the Andaman arc and the Eastern Himalayan regions through characterizing the seismic structure, deformation and tectonics of the Indian plate. This involves deployment of broadband networks, application and development of advanced methodologies to parameterize lateral heterogeneities and anisotropy, cross correlation of ambient noise to obtain high resolution 3D images of the subsurface and   modeling of teleseismic and local earthquake data to obtain models of the crust and upper mantle structure. In addition, locales of fluid filled pockets and zones of serpentinization that are central to understanding the seismogenic potential of a subduction zone will be identified.
                                                                                                  
Activity: The activity is aimed at understanding the seismogenesis in the Koyna-Warna region, well known for its reservoir trigger seismicity (RTS), through modeling of the crustal structure and the source mechanism. Techniques like Receiver function, seismic tomography and ambient noise correlation shall be used to map the detailed velocity structure of the region to infer the most plausible seismogenic zones. Further, moment tensor inversion studies will be undertaken for estimation of focal mechanisms which will be used for stress inversion studies for understanding the local tectonics of the Koyna-Warna region in conjunction with the RTS mechanism, in a larger frame work of the Indian plate tectonics.
 
  S&T Staff:
 
S.No
Name
Designation
E-mail Id
Phone/Extn
1.
M.Ravi Kumar
Scientist - F
040-23434697
2.
N. Purnachandra Rao
Scientist - E-II
2520
3.
Kalpana Gahalaut
Scientist - E-I
2514
4.
Prakash Kumar
Scientist - C
2514
5.
D. Shashidhar
Scientist - B
2516
6.
Arun Singh
Scientist - B
2514
7.
M.Murali Kumari
Technical Officer E-I
2516
8.
Uma Anuradha
Senior Technical Assistant
2516
9.
K. Mallika
Junior Technical Assistant
2516
10.
B.D.R.P. Sarma
Helper
 
2516
11.
Narendra Kumar
SRF
2516
12.
G. Srijayanthi
CSIR Intern
2511
13.
Reddy Srinivasa Rao
CSIR Intern
2511
14.
Dipankar Saikia
Project Assistant  - III
2511
15.
Pinki Hazarika
Project Assistant - II
2511
16.
G. Srihariprasad
Project Assistant - II
2511
17.
K. Sushini
Project Assistant - II
2511
18.
B. Mahesh
Project Assistant - I
2511
19.
T. Sirisha
Project Assistant - I
2511
20.
Prince Goswami
M.Tech Student
 
2511
21.
Poonam Mahato
M.Tech Student
 
2511
22.
Namita Pegu
M.Tech Student
 
2511
 
  Linked Sponsered Projects: 
1.      GAP-283-28(MRK)- Lithospheric structure and seismogenesis in Sikkim Himalaya for Active and Passive Seismological Experiments
2.      GAP-352-28(VPD)- Research unit for seismicity studies in the Koyna-Warna and Indian Shield Regions using Multi-disciplinary Geophysical approaches
3.      GAP-364-28(NPR)- Modeling the structure and genesis of intra-plate Earthquakes in the Indian Shield and Associated Seismic Hazard - A Broadband Approach
 
4.      GAP-4701-28(MRK)- Lithospheric structure and deformation in the Andaman arc region
 
5.     SIP0012-28(YGB)- Seismic structure and tectonics of the Indian plate in Arunachal Himalaya as a component of Evolution of the Indian Lithosphere: focus on Major Earth Processes, Resources and Resources with special reference to Deccan Traps
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