A database for the seismicity of the Tehri region (29.5˚N - 31.5˚N and 77.5˚E - 79.5˚E) from November 1, 1853, to March 31, 1989, has been prepared using a Compatible Personal Computer System. The seismicity database is complete for events with mb ≥ 4.5 only since 1963. It is inferred that the general seismicity of the area is considerably low, which is associated with four main tectonic features identified based on the spatial distribution of events in the area. Earthquakes in the Tehri area is of shallow focus, and maximum seismic activity is confined in the region beyond 60 km east and northwest of Tehri. The cumulative Number of Events as a Function of Time (CNET) for the period from 1963 to 1988 has indicated that precursory swarms do not precede the medium-sized earthquakes of the Tehri area. However, the CNET curves for total events and those with mb ≥ 4.6 have indicated a sharp 2-fold seismicity rate increase from 1986 compared to the preceding period. The October 20, 1991 (IST) earthquake of mb = 6.5 of Uttarkashi is believed to be associated with this seismicity rate change. The continuous increasing trend of the CNET curve before 1986 has been attributed to the detection changes.
Kropotkin, P.N. (1969) The Problems of Continental Drift (mobilism). Izvestiya Akademii Nauk , 3, 139-149.
Dewey, J.F. and Bird, J.M. (1970) Mountain Belts and the New Global Tectonics. Journal of Geophysical Research , 75, 2625-2647. https://doi.org/10.1029/jb075i014p02625
Krishna, K.S. and Singhvi, A.K. (1984) Seismicity and Tectonics of the Andaman Sea Region. Tectonophysics , 104, 329-340.
Molnar, P. (1987) The Distribution of Intensity Associated with the 1905 Kangra Earth-quake and Bounds on the Extent of the Rupture Zone. Journal of the Geological Society of India , 29, 221-229.
Gupta, H.K., Rao, V.D. and Singh, J. (1982) Continental Collision Tectonics: Evidence from the Himalaya and the Neighbouring Regions. Tectonophysics , 81, 213-238. https://doi.org/10.1016/0040-1951(82)90130-5
Chandra, U. (1978) Seismicity, Earthquake Mechanisms and Tectonics along the Himalayan Mountain Range and Vicinity. Physics of the Earth and Planetary Interiors , 16, 109-131. https://doi.org/10.1016/0031-9201(78)90083-3
Chandra, U. (1981) Focal Mechanism Solutions and Their Tectonic Implications for the Eastern Alpine-Himalayan Region. In: Gupta, H.K. and Delany, F.M., Eds., Geodynamics Series , American Geophysical Union, 243-271.
Gupta, H.K. (1976) Seismological Investigations and the Tectonics of the Kash-Mir-Hindukush-Pamir Region. International Colloquium on the Geotectonics of Kashmir- Himalaya-Karakorum-Hindukush-Pamir Orogenic Belts , 25-27 June 1974, Rome, 43-66.
Singh, D.D. and Gupta, H.K. (1980) Source Dynamics of Two Great Earthquakes of the Indian Subcontinent: The Bihar-Nepal Earthquake of January 15, 1934 and the Quetta Earthquake of May 30, 1935. Bulletin of the Seismological Society of America , 70, 757-773. https://doi.org/10.1785/bssa0700030757
Verma, R.K. and Chandra Sekhar, C. (1977) Seismicity of Pakistan and Its Relationship to Fault and Lineaments. Geophysical Research Bulletin , 21, 210-223.
Crawford, A.R. (1974) The Salt Range, the Kashmir Syntaxis and the Pamir Arc. Earth and Planetary Science Letters , 22, 371-379. https://doi.org/10.1016/0012-821x(74)90147-2
Khattri, K.M. and Tyagi, A.K. (1983) Seismicity Patterns in the Himalayan Plate Boundary and Identification of the Areas of High Seismic Potential. Tectonophysics , 96, 281-297. https://doi.org/10.1016/0040-1951(83)90222-6
Kumar, S. and Mahajan, A.K. (1990) Study of Intensities of April. 1986 Dharmashala Earthquake (Himachal Pradesh) Associated Tectonics. Journal of the Geological Society of India , 35, 213-219.
Sekar, K.C. and Srivastava, S.K. (2010) Rhododendrons in Indian Himalayan Region: Diversity and Conservation. American Journal of Plant Sciences , 1, 131-137. https://doi.org/10.4236/ajps.2010.12017
Qasim, M., Khan, M.Z., Naz, A. and Khalid, S. (2013) An Insight of Ecosystem Capitals and Services of the Kaghan Valley: The Himalayan Region of Pakistan. Natural Resources , 4, 163-169. https://doi.org/10.4236/nr.2013.42021
Valdiya, K.S. (1981) Tectonics of the Central Sector of the Himalaya. In: Gupta, H.K. and Delany, F.M., Eds., Geodynamics Series , American Geophysical Union, 87-110.
Le Fort, P. (1975) Himalayas: The Collided Range. Present Knowledge of the Continental Arc. American Journal of Science , 275, 1-44.
Molnar, P. and Tapponnier, P. (1977) The Collision between India and Eurasia. Scientific American , 236, 30-41. https://doi.org/10.1038/scientificamerican0477-30
Kaila, K.L. and Narain, H. (1976) Evolution of the Himalaya Based on Seismotectonics and Deep Seismic Soundings. Himalayan , Geology seminar ( Section II : Structure , Tectonics , Seismicity and Evolution ), New Delhi, 1-30 September 1976, 13-17.
Kaila, K.L. and Narain, H. (1971) A New Approach for Preparation of Quantitative Seismicity Maps as Applied to Alpide Belt-Sunda Arc and Adjoining Areas. Bulletin of the Seismological Society of America , 61, 1275-1291. https://doi.org/10.1785/bssa0610051275
Gansser, A. (1964) Geology of the Himalayas. Inter-Science.
Middlemiss, C.S. (1910) The Kangra Earthquake of April 4, 1905. Memoirs of the Geological Survey of India. Director General, Geological Survey of India.
Singh, H.N. and Raghavan, V. (1991) A Database for the Region Around the 1905 Kangra Earthquake and Identification of Possibly Seismic Precursors—Part I: The Seismicity Database. CSI1 Report, 132.
Singh, H.N. and Raghavan, V. (1991) A Database for the Region Around the 1905 Kangra Earthquake and Identification of Possible Seismic Precursors—Part II: Analysis of the Seismicity Database. CSIR Report, 194.
Kazami, A.H. (1979) Active Fault Systems in Pakistan. In: Farah, A. and De Jonge, K.A., Eds., Geodynamics of Pakistan . Geological Survey of Pakistan, 285-249.249.
Shubham, Shanker, D. and Soni, K. (2021) Probabilistic Seismic Hazard in Uttarakhand Himalaya. Journal of Rock Mechanics and Tunnelling Technology , 27, 85-102. https://www.isrmtt.com/
Soni, K., Shanker, D., Shubham and Sabah, N. (2019) Estimation of Seismic Hazard Parameters for Uttarakhand Region. Journal of Rock Mechanics & Tunnelling Technology , 25, 21-32. https://www.isrmtt.com/
Storchak, D.A., Di Giacomo, D., Bondar, I., Engdahl, E.R., Harris, J., Lee, W.H.K., et al . (2013) Public Release of the ISC-GEM Global Instrumental Earthquake Catalogue (1900-2009). Seismological Research Letters , 84, 810-815. https://doi.org/10.1785/0220130034
Wald, D.J. and Worden, B.C. (2007) Development of an Earthquake Database for In-dia. Bulletin of the Seismological Society of America , 97, 1966-1971.
Asrarullah, A.Z. and Abbas, S.G. (1979) Ophiolites in Pakistan: An Introduction. In: Farah, A. and De Jonge, K.A., Eds., Geodynamics of Pakistan , Geological Survey of Pakistan , Quetta . Elite Publishers Ltd., 181-192.
Tandon, A.N. and Srivastava, H.N. (1974) Earthquake Occurrence in India. Earthquake Engineering, Jai Krishna Volume. Sarita Prakashan.
Oldham, T. (1883) A Catalogue of Indian Earthquakes from the Earliest to the End of AD 1869. Memoirs of the Geological Survey of India , 19, 53.
Bapat, A., Kulkarni, R.C. and Guha, S.K. (1983) Catalogue of Earthquakes in India and Neighbourhood from the Historical Period up to 1979. Indian Society of Earthquake Technology.
Gutenberg, B. and Richter, C.F. (1954) Seismicity of the Earth and Associated Phenomena. Princeton University Press, 310.
Wadia, D.N. (1937) Tectonics of North India. XVII International Geological Congress , Moscow, July 1937, 443.
Gansser, A. (1981) The Geodynamic History of the Himalaya. In: Gupta, H.K. and Delany, F.M., Eds., Geodynamics Series , American Geophysical Union, 111-121.
Shanker, D. and Pathak, A. (2019) Estimation of Source Parameter of Local Earthquake in Tehri Dam Site and Vicinity. Journal of Rock Mechanics and Tunnelling Technology , 25, 89-102.
Gupta, H.K. (1974) Some Seismological Observations and Tectonics from Hindukush to Burma Region. Himalayan Geology , 4, 465-479.
Kaila, K.L. (1981) Structure and Seismotectonics of the Himalaya-Pamir Hindukush Region and the Indian Plate Boundary. In: Gupta, H.K. and Delany, F.M., Eds., Geodynamics Series , American Geophysical Union, 272-293.
Kaila, K.L. and Madhava Rao, N. (1978) Deep Tectonic Features of the Pa-Mir-Hindukush Region. The Litho - Sphere - Asthenosphere Interaction , Its Role in Tectonic Processes , Leningrad, 2-11 October 1978, 1721-1730.
Kaila, K.L. and Madhava Rao, N. (1979) Seismotectonics of the Pamir Belt and the Deep Tectonic Features of the Pamir-Hindukush Region. Geophysical Research Bulletin , 17, 319-327.
Kumar, S. (1975) Tectonics and Earthquake Mechanism of the Shallow Earthquake Seismic Belt, the Himalaya. Geologische Rundschau , 64, 977-992. https://doi.org/10.1007/bf01820707
Rastogi, B.K. (1974) Earthquake Mechanisms and Plate Tectonics in the Himalayan Region. Tectonophysics , 21, 47-56. https://doi.org/10.1016/0040-1951(74)90061-4
Rastogi, B.K. (1976) Source Mechanism Studies of Earthquakes and Contemporary Tectonics in Himalaya and Nearby Regions. Bulletin of the International Institute of Seismology and Earthquake Engineering , 14, 99-134.
Richter, C.F. (1958) Elementary Seismology. W.H. Freeman and Company Inc., 768.
Verma, R.K., Mukhopadhyay, M. and Roy, B.N. (1977) Seismotectonics of the Himalaya, and the Continental Plate Convergence. Tectonophysics , 42, 319-335. https://doi.org/10.1016/0040-1951(77)90172-x
Sinha, A.K. and Jhingran, A.G. (1977) Deep Seated Lineament Structures in Himalaya and Caucasus: Their Role in the History of Geological Development and Metallogeny. Himalayan Geology , 7, 46-64.
Singh, V.P. and Singh, J. (1978) On the Seismicity and Tectonics Associated with the Sinkiang—Tibetan Region. Tectonophysics , 44, T7-T20. https://doi.org/10.1016/0040-1951(78)90056-2
Khattri, K.N., Rogers, A.M., Perkins, D.M. and Algermissen, S.T. (1984) A Seismic Hazard Map of India and Adjacent Areas. Tectonophysics , 108, 93-134. https://doi.org/10.1016/0040-1951(84)90156-2
Singh, V.P., Singh, H.N. and Singh, J. (1982) On the Possibilities of Premonitory Swarms for Three Sequences of Earthquakes of the Burma—Szechwan Region. Tectonophysics , 85, T21-T29. https://doi.org/10.1016/0040-1951(82)90097-x
Singh, V.P. and Singh, H.N. (1984) Precursory Swarm and Medium Size Earthquake Occurrences in Pamirs and Its Adjoining Regions. Earthquake Prediction Research , 2, 245-258.
Gupta, H.K. and Singh, H.N. (1989) Earthquake Swarms Precursory to Moderate to Great Earthquakes in the Northeast India Region. Tectonophysics , 167, 285-298. https://doi.org/10.1016/0040-1951(89)90079-6