Mukhopadhyay Sagarika - Department of Earth Sciences,Indian Institute of Technology Roorkee
Mukhopadhyay Sagarika
S. Mukhopodhyay Professor sagarika.mukhopadhyay@es.iitr.ac.in +91-1332-285563
Areas of Interest
  • Seismology, Seismic Tomography, Study of Attenuation and Anisotropy, Surface Wave Analysis, Engineering Seismology, Seismic Hazard Microzonation, Near Surface Studies
Professional Background
FromPeriodPositionOrganisation
2009-01-01OngoingProfessorIIT Roorkee
2003-01-016 years Associate ProfessorIIT Roorkee
1996-01-017 years Assistant ProfessorIIT Roorkee
1990-01-016 years LecturerIIT Roorkee
Multiple Posts
FromPeriodPositionOrganisation
2020-01-01Member Departmental Faculty Advisory CommitteeIIT Roorkee
2020-01-012 years Member Departmental Administrative CommitteeIIT Roorkee
2020-01-011 year Chairperson Departmental Research CommitteeIIT Roorkee
2019-01-013 years Member Departmental Faculty Search CommitteeIIT Roorkee
2017-01-012 years Chairperson Departmental Academic Program CommitteeIIT Roorkee
2011-01-011 year Member Departmental Academic Program CommitteeIIT Roorkee
Honors and Awards
AwardInstituteYear
Cox Visiting Professor, Blaustein fellowshipStanford University2018
P.K. Bhattacharyya Memorial Award for best student of Dept. of Geology & GeophysicsIIT Kharagpur1981
Educational Details
DegreeSubjectUniversityYear
Ph.D.SeismologyUniversity of Roorkee 1990
MSGeophysicsUniversity of New York at Stony Brook,N.Y. U.S.A.1983
M.Sc.Exploration GeophysicsI.I.T. Kharagpur1981
B.Sc. (Hons.)Earth SciencesIIT Kharagpur1979
Sponsored Research Projects
TopicFunding AgencyStart DatePeriod
Third Party Inspection of CIBMS Projects Patch-I and Patch-II at JammuBorder Security Force2019-01Ongoing
Detecting near-surface voids/tunnels with multicomponent seismic data. Phase–I: A feasibility studyBorder Security Force2018-012 years 7 months
Three Dimensional Seismic Structure and Seismicity in the Himalaya RegionDST-RFBR2013-017 years 7 months
Deep Structure and Seismicity in Southeast Asia: Northeast India and Andaman-Nicobar regionDST-RFBR2010-0110 years 7 months
Modelling and estimation of strong ground motion parameters aimed at seismic risk reductionDST-RFBR2008-0112 years 7 months
Site response from ambient noise measurements in and around DelhiAll India Council for Technical Education1999-0121 years 7 months
Present seismic status and earthquake process models of Garhwal Himalaya regionDST1992-0128 years 7 months
Modelling of earthquake source and earth structure in the Garwhal Kumaun Himalaya region using broadDST1997-0123 years 7 months
Estimation of Moho velocity in the Shillong massif region, northeastern IndiaOffice of Dean Research & Industrial Liaison, University of Roorkee1992-0128 years 7 months
Participation in seminars
NamePlaceSponsored ByDate
International Symposium on Deep Earth Exploration and PracticesBeijingPDA2018-01
American Geophysical Union ConferenceSan Francisco, USAPDA2020-08
American Geophysical Union ConferenceSan Francisco, USAPDA2014-01
European Seismological Commission - 33 ConferenceMoscowPDA2012-01
Rock Deformation and Structure (RDS) 3DibrugarhPDA2014-01
Rock Deformation and Structure (RDS) 2LucknowPDA2012-01
Engineering Geophysics and GeohazardsCBRI, RoorkeeCBRI2012-01
14th SEE-2010 on Earthquake EngineeringRoorkeePDA2010-01
International Training Course on Seismology, Seismic Data Analysis, Hazard Assessment and Risk MitigPotsdam, germanyUnited Nation2001-01
Twelfth Symp. On Earthquake EnggRoorkeePDA2002-01
Workshop on Recent Earthquake of Chamoli and BhujRoorkeePDA2001-01
International Conf. On Seismic Hazard with Particular Reference to Bhuj Earthquake of Jan. 26, 2001New DelhiPDA2001-01
8th Symp. on Earthquake Engg.RoorkeePDA1986-01
Memberships
  • National Geophysical Research Institute, Member of Research Council
  • American Geophysical Union AGU, Member
  • Geological Society of India, Member of Editorial Board
  • Indian Society of Earthquake Technology , Life member
  • Association of Earthquake Seismologists AES, Life member
  • Indian Geological Congress , Life member
Teaching Engagements
TitleCourse CodeClass NameSemester
SeismologyESN 325IMT GPT IIIrd YearAutumn
SeismologyES 357IMT GPT IIIrd YearAutumn
SeismologyES 622Applied Geophysics IInd yearAutumn
Seismic ProspectingESN 324IMT GPT IIIrd YearSpring
Seismic ProspectingES 354IMT GPT IIIrd YearSpring
Seismic ProspectingES 814IMT GPT IIIrd YearSpring
Seismic ProspectingES 632Applied Geophysics IInd yearSpring
Advanced Seismic ProspectingESN 581IMT GPT IVth YearAutumn
Advanced Seismic ProspectingES 474IMT GPT IVth YearAutumn
Advanced Seismic ProspectingES 814Applied Geophysics IInd yearSpring
Geophysical Signal ProcessingES 355IMT GPT IIIrd YearSpring
Geophysical Signal ProcessingES 621Applied Geophysics IInd yearSpring
Advanced SeismologyESN 472IMT GPT IVth YearSpring
Advanced SeismologyES 817Applied Geophysics IIIrd yearSpring
Engineering GeophysicsES 827Applied Geophysics IIIrd yearAutumn
Introduction to GeosciencesES 201Institute ElectiveAutumn
Seismic StratigraphyES 828IMT GPT IVth YearSpring
SeminarES 458IMT GPT IVth YearSpring
SeminarES 651Applied Geophysics IIIrd yearAutumn
SeminarES 634Applied Geophysics IIIrd yearSpring
SeminarES 623Applied Geophysics IInd yearAutumn
SeminarES 663Applied Geophysics IIIrd yearAutumn
Projects and Thesis Supervised
Title of ProjectNames of Students
M.Tech. DissertationMradula Vashishtha
M.Tech. DissertationKarukola Bharat
M.Tech. DissertationUpendra Kumar Gupta
M.Tech. DissertationJaisheel Sharma
M.Tech. DissertationPrateek Kumar Jha
M.Tech. DissertationRachit Rajan Bagade
M.Tech. DissertationSujay Sule
M.Tech. DissertationAshish Mittal
M.Tech. DissertationNikhil Srivastava
M.Tech. DissertationVipul Panwar
M.Tech. DissertationDivya Nidhi Srivastava
M.Tech. DissertationNikhil Singh
M.Tech. DissertationAayushi Garg
M.Tech. DissertationAarushi Bagga
M.Tech. DissertationNongmaithem Menaka Chanu
M.Tech. DissertationNaresh Kumar
M.Tech. DissertationKumari Anjali Singh
M.Tech. DissertationVikas
M.Tech. DissertationVedvrat
M.Tech. DissertationSagar Singh
M.Tech. DissertationPreetika Srivastava
M.Tech. DissertationPoonam Kumari
M.Tech. DissertationMayank Khirwal
M.Tech. DissertationHarpreet Singh Sethi
M.Tech. DissertationGargiy Sharma
M.Tech. DissertationAreeb Usmani
M.Tech. DissertationWagh Saurabh Dilip
M.Tech. DissertationTupkar Sagar Vinay Kumar
M.Tech. DissertationDishant Singla
M.Tech. DissertationOjaswita Singh
M.Tech. DissertationAmit Patra
M.Tech. DissertationTanya Kothari
M.Tech. DissertationSiddtharth Kejriwal
M.Tech. DissertationPravesh Jain
M.Tech. DissertationManisha Gupta
M.Tech. DissertationAlkesh Goyal
M.Tech. DissertationLavika Aggarwal
M.Tech. DissertationYashvardhan Verma
M.Tech. DissertationSiddharth Saxena
M.Tech. DissertationShiv Pratap Singh
M.Tech. DissertationSachin Mangal
M.Tech. DissertationNawaz Khan
M.Tech. DissertationAnkit Khaitan
M.Tech. DissertationAkhil Prabhakar
M.Tech. DissertationAbhinav Kumar Singh
M.Tech. DissertationAnkit Kuchchal
M.Tech. DissertationShalini Singh
M.Tech. DissertationBirinder Singh
M.Tech. DissertationSanjay Tiwari
M.Tech. DissertationAnkit Kumar
M.Tech. DissertationChirag Tyagi
M.Tech. DissertationDebi Prasad Das
M.Tech. DissertationDeepa
M.Tech. DissertationSatyabrata Mishra
M.Tech. DissertationSurabhi Darmora
M.Tech. DissertationAshish Gaur
M.Tech. DissertationShipra Malik
M.Tech. DissertationSatender Saini
M.Tech. DissertationAnuj Kumar
M.Tech. DissertationSurendra Kumar Dass
M.Tech. DissertationAshwani Dev
M.Tech. DissertationPriyamvada Singh
M.Tech. DissertationBasanta Kumar Pradhan
M.Tech. DissertationRajesh Kumar
M.Tech. DissertationSandeep Jain
M.Tech. DissertationBrijesh Kumar Singh
M.Tech. DissertationRobin Massey
M.Tech. DissertationDeboshree Kundu
M.Tech. DissertationMahavir Singh
M.Tech. DissertationGiriraj Sirohi
M.Tech. DissertationAbhash Kumar
M.Tech. DissertationAshish Chauhan
M.Tech. DissertationRajiv Ranjan
M.Tech. DissertationPriyabrata Pradhan
M.Tech. DissertationShonkholen Mate
M.Tech. DissertationSabyasachi Dash
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Date
Crustal Investigations in Garwhal-Kumaun Himalayas: Velocity tomography and QcJyoti SharmaO2003-01
Seismic Response of a Viscoelastic LayerSumana BasuO2004-01
Quantification of Seismic Regimes in Kangra-Chamba Region of Himachal HimalayaNaresh KumarO2004-01
Seismic Imaging of the Subduction Structure Beneath the Andaman-Nicober Islands Using Regional EaSohini Roy (submitted at JU)O2008-01
Local earthquake tomography and attenuation characteristics of NE Indian RegionDeepika PandeyO2009-01
Subsurface d Bay of Bengal using Surface waveAmit KumarO2011-01
Geodynathe basis of earthquake tomographyJaved RaoofO2011-01
Seismic travel time tomography and attenuation studies for Indian regionRabin DasO2013-01
Surface wave tomography of NE India using Love Wave of regional earthquakesNongmeithem Maneka ChanuO2018-01
Joined inversion of surface wave and Receiver Function using teleseismic arrivals for estimation Neeharika ShuklaO2018-01
A generalized study on time imaging workflows for thrust and fold beltsShubhra Pratim DasO2019-01
Visits to outside institutions
Institute VisitedPurpose of VisitDate
Stanford University, USAInvited as Cox Visiting Professor at Department of Geophysics, Stanford University, USA 2018-01-01
Department of Geology, Oklahoma State University, USA Visit related to BSF project2018-01-01
American Geophysical UnionPresented paper in AGU conference in Dec. 2016 in San Francisco, USA2016-01-01
Russian Academy of Science at Novosobirsk, Russia Visit for DST-RFBR project “Three Dimensional Seismic Structure and Seismicity in the Himalaya Region” 2016-01-01
American Geophysical UnionPresented paper in AGU conference in Dec. 2014 in San Francisco, USA2014-01-01
Russian Academy of Science at Novosobirsk, Russia Visit for DST-RFBR project “Three Dimensional Seismic Structure and Seismicity in the Himalaya Region” 2014-01-01
Russian Academy of Science at Moscow, Russia Moscow visit for DST-RFBR project and to attend ESC-33 conference2012-01-01
Ehime University, Matsuyama, JapanInvited by Prof. Dapeng Zhao, Director, Geodynamic Research Center, Ehime University, Matsuyama, Japan for comparison of tomographic analysis of Latur aftershock data using his and Thurber’s technique for a period of about 3 and a half months2004-01-01
GeoForschungsZentrum Potsdam (GFZ), GermanyTo attend “International Training Course on Seismology, Seismic Data Analysis, Hazard Assessment and Risk Mitigation” with specialization on “Microzonation, Risk Assessment and Disaster Management” organized and conducted by GeoForschungsZentrum Potsdam (2001-01-01
UPSC, New DelhiFor taking interview in New Delhi for UPSC 2019-01-01
Institute of Petroleum Engineering in VisakhapatnamFor taking interview 2016-01-01
ISM Dhanbad For taking interview 2016-01-01
UPSC, New Delhi For taking interview 2013-01-01
School of Oceanographic Studies, Jadavpur UniversityFor taking interview 2007-01-01
Wadia Institute of Himalayan Geology, Dehradun For taking interview 2006-01-01
Invitations
TopicOrganistaionDate
Cox Visiting ProfessorStanford University2018-01
Participation in short term courses
Couse NameSponsored ByDate
International Training Course on Seismology, Seismic Data Analysis, Hazard Assessment and Risk United Nations2001-01
National International Collaboration
TopicOrganisation
Seismotectonic investigations of the Himalayas and surroundingsStanford University
Three Dimensional Seismic Structure and Seismicity in the Himalaya RegionSiberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
Collaboration with Prof. Priyank Jaiswal (VAJRA fellow) on near surface tunnel detection Oklahoma State University
Collaboration with Oklahoma State University, USA on near surface tunnel detectionOklahoma State University
Deep Structure and Seismicity in Southeast Asia: Northeast India and Andaman-Nicobar region DST-RFBR
Modeling and estimation of strong ground motion parameters aimed at seismic risk reductionILTP
Seismic tomography using P and S phase data and surface wave analysis to study earth's velocity and anisotropy structureWadia Institute of Himalayan Geology
Seismic wave attenuation characteristics of various parts of IndiaIIT Kharagpur
Refereed Journal Papers

55. Das, R., Mukhopadhyay, S., 2020. Regional variation of coda wave attenuation in Northeast India: An understanding of the physical state of the medium. Phy. Earth. Planet Int., 299: 1-13. https://doi.org/10.1016/j.pepi.2019.106404.

54. Mukhopadhyay, S., A Kumar, N Kumar, 2019. Investigation of azimuthal variation in S-wave velocity in the western part of the Himalayas-Tibet Indo-Gangetic plains region using surface waves. Acta Geologica Sinica‐English Edition, 93: 53-53.

53. Singh, C., Jaiswal, N., Mukhopadhyay, S., 2019. PgQ model for Nepal Himalaya. Phy. Earth. Planet Int., 286: 13-20, doi.org/10.1016/j.pepi.2018.10.009.

52. Singh, S., Kanli, A.I. and Mukhopadhyay, S., 2018. Full waveform inversion in time and frequency domain of velocity modeling in seismic imaging: FWISIMAT a Matlab code. Earth Sciences Research Journal 22(4): 291-300. DOI: https://doi.org/10.15446/esrj.v22n4.59640.

51. Das, R., Mukhopadhyay, S., Singh, R.K., Baidya, P.R., 2018. Lapse time and frequency-dependent coda wave attenuation for Delhi and its surrounding regions. Tectonophysics, 738: 51-63.

50. Kumar, A., Kumar, N., Mukhopadhyay, S., 2018. Investigation of azimuthal variation in seismic surface waves group velocity in the western part of Himalaya-Tibet Indo-Gangetic plains region. Himalayan Geology, 39: 33-46.

49. Kumar, A., Mukhopadhyay, S., Kumar, N., Baidya, P.R., 2018. Lateral Variation in Crustal and Mantle Structure in Bay of Bengal Based on Surface Wave Data. J. Geodynamics, 113: 32-42, DOI10.1016/j.jog.2017.11.006.

48. Raoof, J., Mukhopadhyay, S., Koulakov, I. and Kayal, J. R., 2017. 3-D Seismic Tomography of the Lithosphere and its Geodynamic Implications beneath the Northeast India Region. Tectonics, 36: 962-980, doi:10.1002/2016TC004375.

47. Naghavi, M., Rahimi, H., Moradi, A., Mukhopadhyay, S., 2017. Spatial variations of seismic attenuation in the North West of Iranian plateau from analysis of coda waves. Tectonophysics. 708: 70-80. http://dx.doi.org/10.1016/j.tecto.2017.04.026.

46. Kumar, A., Kumar, N., Mukhopadhyay, S., Baidya, P. R., 2017. Crustal and Uppermost Mantle Structures in the Frontal Himalaya and Indo-Gangetic Basin Using Surface Wave: Tectonic Implications. QI, 462: 34-49. http://dx.doi.org/10.1016/j.quaint.2017.02.035

45. Singh, S., Singh, C., Biswas, R., Mukhopadhyay, S., Sahu, H., 2016. Attenuation characteristics in eastern Himalaya and southern Tibetan Plateau: an understanding of the physical state of the medium. PEPI, 257: 48-56.

44. Mukhopadhyay, S., Singh, B. and Mohamed, H., 2016. Estimation of attenuation characteristics of Aswan reservoir region, Egypt. J. Seismol, 20: 79-92, DOI 10.1007/s10950-015-9511-2.

43. Wagh, S.D., Dangwal, D.S., Khattri, N.K., Sharma, R.K. and Mukhopadhyay, S., 2015. Interpretation of thin beds in spectral domain: A case study. Geohorizons, July: 33-35.

42. Koulakov, I., Maksotova, G., Mukhopadhyay, S., Raoof, J., Kayal, J.R., Jakovlev, A. and Vasilevsky, A., 2015. Variations of the crustal thickness in Nepal Himalayas based on tomographic inversion of regional earthquake data. Solid Earth, 6: 207–216, doi:10.5194/se-6-207-2015.

41. Singh, C., Mukhopadhyay, S., Singh, S, Chakraborty, P, Kayal, J.R., 2015. Study of lapse time dependence coda Q in the Andaman Islands using the aftershocks of the 2002 earthquake (Mw 6.5). Natural Hazards, 75: 779–793, DOI 10.1007/s11069-014-1337-7.

40. Kumar, N, Mate, S. and Mukhopadhyay, S, 2014. Estimation of Qp and Qs of Kinnaur Himalaya, J. Seismology. 18: 47-59, DOI: 10.1007/s10950-013-9399-7.

39. Mukhopadhyay, S., Kumar, A., Garg, A., Del-Pezzo, E. and Kayal J.R., 2014. The Attenuation Mechanism of S-Waves in the Source Zone of the 1999 Chamoli Earthquake. J. Asian Earth Sciences. 79: 446-454.

38. Mukhopadhyay, S., 2013. Is the Same Tectonic Model Applicable for the Entire Himalayas? Insagnia: J. Soc. Petro. Geophysicists Duliajan Chapter, 5: 4-6.

37. Singh, B., Mukhopadhyay, S., Mohamed, H., 2013. Qp and Qs Estimation of Aswan Lake Region, Egypt, Proc. 2nd Annual International Conference on Geological & Earth Sciences (GEOS 2013). 28th-29th October 2013, Phuket, Thailand.

36. Kumar. N., Arora, B.R., Mukhopadhyay., S. and Yadav, D. K., 2013. Seismogenesis of Clustered Seismicity beneath the Kangra–Chamba Sector of Northwest Himalaya: Constraints from 3D Local Earthquake Tomography. J. Asian Earth Sc., 62: 638-646.

35. Singh, C., Singh, A., Mukhopadhyay, S., Shekar, M. and Chadha, R. K., 2011. Lg attenuation characteristics across the Indian Shield, Bull. Seismol. Soc. Am., 101: 2561-2567, doi: 10.178/0120100239.

34. Mukhopadhyay, S. and Sharma, J., 2010. Crustal scale detachment in the Himalayas: a reappraisal, Geoph. J. Int., 183: 850–860, doi: 10.1111/j.1365-246X.2010.04755.x.

33. Mukhopadhyay, S., Sharma, J., Del-Pezzo, E. and Kumar, N., 2010. Study of attenuation mechanism for Garwhal–Kumaun Himalayas from analysis of coda of local earthquakes. Phys. Earth Planet. Interior, 180: 7-15. doi:10.1016/j.pepi.2010.03.007.

32. Rahimi, H., Motaghi, K., Mukhopadhyay, S. and Hamzehloo, H., 2010. Variation of coda wave attenuation in the Alborz region and central Iran. Geoph. J. Int., 181: 1643-1654. doi: 10.1111/j.1365-246X.2010.04574.x.

31. Mukhopadhyay, S., Sharma, J., 2010. Attenuation characteristics of Garwhal–Kumaun Himalayas from analysis of coda of local earthquakes. J. Seismol., 14: 693–713, DOI 10.1007/s10950-010-9192-9.

30. Mohamed, H.H., Mukhopadhyay, S. and Sharma, J., 2010. Attenuation of coda waves in the Aswan Reservoir area, Egypt. Tectonophysics, 492: 88–98, doi:10.1016/j.tecto.2010.05.018

29. Mukhopadhyay, S., Del Pezzo, E., Kayal, J.R., 2010. Study of Attenuation Mechanism of Chamoli Region Using Aftershock Data of 1999 Chamoli Earthquake, 14th SEE-2010 on Earthquake Engineering, Dec. 17-19: 2010, Dept. of Earthquake Engineering, IIT Roorkee.

28. Kumar, N., Sharma, J., Arora, B.R. and Mukhopadhyay, S., 2009. Seismotectonic model of Kangra-Chamba sector of NW Himalaya: constraints from joint hypocenter determination and focal mechanism. Bull. Seism. Soc. Am., 99: 95-109, doi. No. 10.1785/012008/0220.

27. Mukhopadhyay, S., Sharma, J. and Arora, B.R., 2008. Seismic Tomography of Garwhal-Kumaun Himalayas: Is the basal detachment a wistful thinking? Himalayan Journal of Sciences 5 (7), 128-128

26. Mukhopadhyay, S., Sharma, J., Massey, R. and Kayal,J. R., 2008. Lapse Time Dependence of Coda Q in the Source Region of the 1999 Chamoli Earthquake, Bull. Seismol. Soc. Am., 98 (4): 2080-2086, doi: 10.1785/0120070258.

25. Mukhopadhyay, S. and Tyagi, C., 2008. Variation of intrinsic and scattering attenuation with depth in NW Himalayas, Geoph. J. Int. 172(3): 1055-1065.  doi: 10.1111/j.1365-246X.2007.03688.x.

24. Bhattacharya, P.M., Mukhopadhyay, S., Majumdar, R.K. and Kayal, J.R., 2008. 3-D Seismic structure of the Northeast India region and its implications for local and regional tectonics. J. Asian Earth Sciences. 33: 25-41.

23. Mukhopadhyay, S. and Kayal, J.R., 2008. The 2001 Bhuj earthquake (Mw 7.7) in western India: 3-D velocity structure and seismotectonic processes. Acta Geodaetica et Geophysica Hungarica. 43: 75-92.

22. Mukhopadhyay, S. and Kayal, J.R., 2008. 3D velocity structure with a special reference to shear wave velocity: Bhuj earthquake source area, western India, DCS-DRS Newsletter. 18: 2-5.

21. Mukhopadhyay, S. and Tyagi, C., 2007. The lapse time and frequency dependent attenuation characteristics of coda waves in the North Western Himalaya. J. Seismology. 11: 149-158.

20. Mukhopadhyay, S., Tyagi, C. and Rai, S.S., 2006. The attenuation mechanism of seismic waves for NW Himalaya. Geoph. Jour. Int, 167: 354-360.

19. Mukhopadhyay, S., Mishra, O.P., Zhao, D. and Kayal, J.R., 2006. 3-D seismic structure of the source area of the 1993 Latur, India, earthquake and its implications for rupture nucleations. Tectonophysics, 415: 1-16.

18. Khattri, K.N., Kumar, D., Sarkar, I., Mukhopadhyay, S. and Sriram, V, 2006. A Small Step Towards Making the National Capital Region Safer form Seismic Hazard and Risk, Current Science, 91: 1600-1601.

17. Kayal, J.R. and Mukhopadhyay, S., 2006. Seismotectonic of 2001 Bhuj earthquake (Mw 7.7) in western India: constraints from aftershocks. J. Geoph. Union (Special issue on “Stable Continental Earthquakes”), 10(1): 45-57.

16. Kumar, N., Sharma, J., Arora, B.R. and Mukhopadhyay, S., 2006. Imaging deep structures through the inversion of earthquake data: An example from Kangra-Chamba Region of Himachal Himalaya, DST Newsletter, 7-10.

15. Mukhopadhyay, S. and Bormann, P., 2004. A low cost seismic microzonation using microtremor data: an example from Delhi, India. Jour. Asian Earth Sci. 24: 271-280.

14. Mukhopadhyay, S. and Kayal, J.R., 2003. Seismic tomography structure of the 1999 Chamoli earthquake source area in the Garhwal Himalaya, Bull. Seis. Soc. Amer., 93: 1854-1861.

13. Mukhopadhyay, S. and Kayal, J.R., 2003. Seismogenic structure of the 1999 Chamoli earthquake in the Garhwal Himalaya: imaged by three dimensional seismic velocity. In Seismic Hazards Eds. S.K. Srivastav, G.D. Gupta, S.N. Bhattacharyya, A.K. Shukla, R.S. Dattatrayam, and P.R. Baidya, 130-140.

12. Mukhopadhyay, S., Pandey, Y. and Dharmaraju, R., 2003. Site response analysis using microtremor data in Delhi. In Seismic Hazards Eds. S.K. Srivastav, G.D. Gupta, S.N. Bhattacharyya, A.K. Shukla, R.S. Dattatrayam, and P.R. Baidya, 46-55.

11. Mukhopadhyay, S., Pandey, Y. Dharmaraju, R., Chauhan, P.K.S., Singh, P. and Dev, A., 2002. Seismic microzonation of Delhi for ground shaking site effect. Current Science, 82: 877-881.

10. Kayal, J.R. and Mukhopadhyay, S., 2002. Seismic tomography structure of the 1993 Killari earthquake source area. Bull Seism. Soc. Am, 92: 2036-2039.

9. Mukhopadhyay, S., Kayal, J.R., Khattri, K.N. and Pradhan, B.K., 2002. Simultaneous inversion of the aftershock data of the 1993 Killari earthquake in Peninsular India and its seismotectonic implications. Proc. Indian Acad. Sci. (Earth Planet Sci.), 111: 1-15.

8. Mukhopadhyay, S., Kayal, J.R. and Kumar, A., 2002. Seismic tomography of Bhuj area using aftershocks of 26 January 2001 Bhuj earthquake. Proc. Twelfth Symp. On Earthquake Engg., Dec. 16-18, 2002, Roorkee, v.1, 12-19.

7. Saini, S., Sharma, M.L. and Mukhopadhyay, S., 2002. Strong ground motion empiricial relationship for seismic hazard estimation in Himalaya region. Proc. Twelfth Symp. On Earthquake Engg., Dec. 16-18, 2002, Roorkee, v.1, 143-150.

6. Mukhopadhyay, S., Kayal, J.R. and Dass, S.K., 2001. Analysis of Chamoli aftershocks data for simultaneous determination of their location and the velocity structure of the area. Proc. of Workshop on Recent Earthquakes of Chamoli and Bhuj, May 24-26, 2001, Roorkee, 291-304.

5. Mukhopadhyay, S., Chander, R. and Khattri, K.N., 1997. Crustal properties in the epicentral tract of the great 1897 Assam earthquake, north eastern India. Tectonophysics, 283:311-330.

4. Mukhopadhyay, S., Khattri, K.N. and Chander, R., 1995. Seismic velocity and related elastic parameters of the crust in the Shillong massif. J. of Himalayan Geology, 6: 1-8.

3. Mukhopadhyay, S., Chander, R. and Khattri, K.N., 1993. Fine structure of seismotectonics in western Shillong massif, north east India. Proc. Indian Acad. Sci., 102: 2383-2398.

2. Khattri, K.N., Chander, R. Mukhopadhyay, S., Sriram, V. and Khanal, K.N., 1992. A model of active tectonics in the Shillong massif region, invited paper in the book "Himalayan Orogen and Global Tectonics", ed. A.K. Sinha, Oxford IBH Publ. Co. Pvt. Ltd., 205-222.

1. Khattri, K.N., Mukhopadhyay, S., Subrahmaniam, C. and Rao, A., 1986. Seismotectonic studies in the western part of Shillong massif region, Proc. 8th Symp. on Earthquake Engg., Roorkee, Dec. 29-31, 1986, 1: 103-110.

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