Research Field

• Earthquake  Seismology

Research Interests

• Waveform Modeling
• Seismic  Tomography (Body and Surface waves)
• Seismic Anisotropy
• Seismotectonics

M.Sc

• Earthquake and Engineering Seismology
• Geophysical Well Logging
• Solid Earth and Exploration Geophysics

M.Tech

• Seismic Data Processing and Seismic Stratigraphy
• Well Logging

• Ph.D. (Geophysics), 1994 
  Indian School of Mines, Dhanbad.
• M.Sc.(Tech)(Applied Geophysics), 1986
  Osmania University, Hyderabad, India.

• Professor (2007 onward’s), Indian Institute of Technology Bombay
• Assocaite Professor (1998-2007), Indian Institute of Technology Bombay
• Assistant Professor (1994-1998), Indian Institute of Technology Bombay
• Research Associate (1993-1994), National Geophysical Research Institute, Hyderabad
• Research Scholar (1990-1991), International Center for Theoretical Physics, Trieste, Italy
• Research Scholar (1987-1993), National Geophysical Research Institute, Hyderabad

Research Interest and Summary of Research Work:

Earth structure

Seismological studies are being carried out to understand the nature of the shallow crustal and deep lithospheric velocity structure beneath India and in particular beneath the Deccan Volcanic Province(DVP). A research program, launched in 1998, is being pursued  to understand the evolution of the DVP by establishing, in phases, a network of Broadband stations encompassing the DVP and Northwestern India. The upper mantle image down to a depth of 660km is being mapped which is expected to provide constraints on the evolution of the DVP. Modeling the seismic wave velocity structure is done using advanced seismological techniques employing both teleseismic body and surface waves recorded by the network of  broadband digital seismic stations These studies provide a reliable means of resolving the elastic parameters of the earth, which are linked to the evolutionary processes of the earth system.

Seismotectonics

Seismotectonic studies were done to understand the nature, pattern and character of seismicity occurring in the Deccan volcanic province (DVP) through seismic monitoring using an array of seismic stations.

Research Grants

Ongoing Project

Completed Projects

• ICTP (International Center for Theoretical Physics) TRIL Associateship in 2001
• Indian National Science Academy (INSA) award in 1994 in the field of Earth Sciences
• Training and Research in Italian laboratories (TRIL) fellowship in 1990.

Research Publications

1. Kuldeep, Shekar, B., Mohan, G. and Singh, S.K., 2022, Assessment of seismic vulneralbility using the ambient noise recordings in Cachar fold belt, Assam: Journal of the Geological Society of India,98(6),795-804.
2. Shekar, B., Mohan ,G. and Singh, S.K., 2022, Structural information derived from ambient noise tomography over a hydrocarbon producing region in the Cachar fold belt, lower Assam, Northeast India. Geophysical Prospecting, 71(1),140-162.
3. Deshpande, A.A. and Mohan, G., 2016, Seismic evidence of crustal heterogeneity beneath the northwestern Deccan volcanic province of India from joint inversion of Rayleigh wave dispersion measurements and P receiver functions, Jour. Asian Earth Sciences, 128, 54-63.
4. Praveen Kumar, K.A. and Mohan, G., 2014, Crustal velocity structure beneath Saurashtra, NW India, through waveform modeling:Implications for magmatic underplating, Journal of Asian Earth Sciences, 79,173-181.
5. Surve, G. and Mohan, G., 2012, Possible evidence of remotely triggered and delayed seismicity due the 2001 Bhuj earthquake (Mw=7.6) in western India, Natural Hazards, 64(1),299-310.
6. Mohan, G., Kumar, M.R., Saikia,D.,Praveen Kumar,K.A., Tiwari,P.K. and Surve,G., 2012, Imprints of volcanism in the upper mantle beneath the NW Deccan volcanic province.,Lithosphere, doi:10.1130/L178.1
7. Saikia,D., Ravi Kumar,M.R., Singh,A., Mohan, G. and Dattatrayam,R.S., 2010, Seismic anisotropy beneath the Indian continent from splitting of direct S waves, JGR(Solid Earth),115,B12315.
8. Surve,G. and Mohan, G., 2010, Site response studies in Mumbai using (H/V) Nakamura technique, Natural Hazards, 54(3),783-795.
9. Kiselev S., Vinnik L., Oreshin, S., Gupta, S.,  Rai. S.S.,  Singh A.,   Kumar, M.  R., and   Mohan G., 2008, Lithosphere of the Dharwar craton by joint  inversion of P and S receiver functions, Geophysical Journal Intl., 173(3), 1106-1118.
10. Mohan,G., Surve,G and Tiwari,P.K., 2007, Seismic evidences of faulting beneath the Panvel flexure, Current Science,93,991-996.
11. Pankaj Kr. Tiwari, Surve, G. and  Mohan, G., 2006, Crustal constraints on the uplift mechanism of the Western Ghats of India, Geophy. Jour. Intl., 167,1309-1316.
12. Shankar M.N.R. and Mohan, G., 2006, Evaluation of the groundwater potential and quality in Bhatsa and Kalu river basins of Thane district, western Deccan Volcanic Province of India, Environmental Geology , 49, 990-998, DOI 10.1007/s00254-005-0137-5.
13. Shankar M.N.R and Mohan, G., 2005, A GIS based hydrogeomorphic approach for identification of site-specific artificial-recharge techniques in the Deccan Volcanic Province, Jour. of Earth System Science, 114(5), 505-514.
14. Kumar M.R. and Mohan G.,2005,  Mantle discontinuities beneath the Deccan volcanic province, Earth Planet. Sci. Lett., 237(1-2), 252-263.
15. Mohan, G. and Kumar, M.R., 2004, Seismological constraints on the structure and composition of western Deccan volcanic province from converted phases, Geophy. Res. Lett., 31, L02601, doi:10.1029/2003GL018920.
16. Mohan, G., Rai, S.S. and Panza, G.F.,1997, Shear velocity structure of the laterally heterogeneous crust and uppermost mantle beneath the Indian region, Tectonophysics, 277,259-270.
17. Mohan, G., Rai, S.S.,1995, Large scale three dimensional seismic tomography of Zagros and Pamir-Hindukush region, Tectonophysics, 242, 255 – 265.
18. Mohan, G., Rai, S.S and Panza,G.F., 1992, Seismic heterogeneities in the Indian lithosphere, Phy. Ear. And Plan. Int., 73, 189-198.
19. Mohan, G. and Rai, S.S., 1992, Imaging of seismic scatterers beneath the Gauribidanur (GBA) array, Phy. Earth and Plan. Int., 71, 36-45.
20. Mohan, G. and Rai, S.S., 1992, Critical evaluation and geological correlation  of teleseismic phase data from Indian seismological stations, Procee. Ind. Acad. of Sci., 101(4), 387-401.
21. Rai,S.S., Ramesh,D.S., Srinagesh,D., Suryaprakasam,K., Mohan,G., Rajagopala Sharma,P.V.S.S. and Satyanarayana,Y., 1992, Seismic tomography of the south Indian shield, Current Science,62,213-226.

Revised Papers Under Consideration

1. Gowthami, B., Saju, D.S. and Mohan, G., 2023, Significant variations in the structure and composition of the crust  beneath northwestern India: Imprints of magmatism, PEPI
2. Shushant Singh, Mohan, G., Shekar, B. and Singh, S.K., 2023, Local earthquake tomography of the Cachar fold and thrust belt in lower Assam, Northeast India, Geo-Marine Letters.

Papers under Review

1. Saju, D.S. and Mohan, G., 2023, Seismic evidence of a plume conduit  in a metasomatized lithosphere beneath the Barmer-Sanchor rift in northwestern India, Tectonophysics
2. Ayush Goyal, Gowthami, B., Maurya, S.,  Mohan, G., 2023, Shallow Crustal Imaging beneath NW Indian Terrane from Teleseismic P-wave Coda using a Bayesian Approach, Tectonophysics
3. Mishra, A., Maurya, S., Mohanty, W.K., Mohan, G., 2023. 3D crustal shear-wave velocity model of the central Himalaya and Tibetan Plateau using surface wave tomography, Gondwana Research