pure and applied geophysics

, Volume 109, Issue 1, pp 1718–1727 | Cite as

Crustal structure of the Peninsular India

  • R. K. Dube
  • J. C. Bhayana
  • H. M. Chaudhury
Article

Summary

Earthquake parameters for the forty aftershocks of the main Koyna earthquake of 10 December, 1967, have been determined. Depths of the foci of the earthquakes have been found to vary between 2 to 17 km. The velocities for the phasesP g,P *,P n have been observed to be 5.78±0.00, 6.58±0.04, 8.19±0.02 km/sec, and forS g,S *,S n to be 3.42±0.00, 3.92±0.01 and 4.62±0.01 km/sec respectively. A two-layered crustal model has been interpreted for the Peninsular shield with the average thickness of the granitic layer as 20 km and that for the basaltic layer as 18.7 km. A plot of the epicenters suggests a NNE to SSW orientation of the fault.

Keywords

Main Shock Focal Depth Crustal Structure Epicentral Distance Wave Group 

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References

  1. [1]
    A. N. Tandon, Ind. J. Met. Geophys.5 (1954), 95–137.Google Scholar
  2. [2]
    A. N. Tandon andH. M. Chaudhury, Scientific Report59 (1968), India Met. Dept.Google Scholar
  3. [3]
    B. Gutenberg,Physics of the Earth Interior (Academic Press, New York 1959).Google Scholar
  4. [4]
    H. Jeffreys,The Earth (Cambridge University Press 1962).Google Scholar
  5. [5]
    H. M. Chaudhury, Ind. J. Met. Geophys.17 (1966), 385–394.Google Scholar
  6. [6]
    I. P. Kosminskaya andY. U. Riznichenko, Res. Geophys.2 (1964), 81–120.Google Scholar
  7. [7]
    J. Brune andJ. Dorman, Bull. Seism. Soc. Am.53 (1963), 167–210.Google Scholar
  8. [8]
    J. H. Hodgson, Publ. Dom. Obs. Ottawa16 (1953), 169–181.Google Scholar
  9. [9]
    K. C. Chakravorthy andD. P. Ghosh,Proceedings of the Second World Conference on Earthquake Engineering, Tokyo, Japan (1960), pp. 1633–1642.Google Scholar
  10. [10]
    L. Gedney andE. Berg, Bull. Seism. Soc. Am.59 (1969), 73–100.Google Scholar
  11. [11]
    L. C. Pakiser andJ. S. Steinhest, Res. Geophys.2 (1964), 123–145.Google Scholar
  12. [12]
    L. N. Kailasam andB. G. K. Murthy, Ind. J. Power River Valley, Spec. No. (1970), 27–29.Google Scholar
  13. [13]
    M. S. Krishnan,Geology of India and Burma (Higginbothern Pvt. Ltd., Madras 1956).Google Scholar
  14. [14]
    P. Byerly, Adv. Geophys.3 (1956), 106–152.Google Scholar
  15. [15]
    R. K. S. Chouhan andR. N. Singh, J. Ind. Geophys. Un. 2 (1965), 51–57.Google Scholar
  16. [16]
    R. K. S. Chauhan andV. K. Gaur, Ind. J. Power River Valley, Spec. No. (1970), 37–38.Google Scholar
  17. [17]
    S. C. Roy, Mem. Geolog. Surv. Ind.73 (1939), 49–75.Google Scholar
  18. [18]
    S. K. Pramanik andS. M. Mukherjee, Symp. Cet. Board Geophys. (1951).Google Scholar
  19. [19]
    S. K. Arora, Bull. Seism. Soc. Am.61 (1971), 671–683.Google Scholar
  20. [20]
    S. N. Bhattacharya, Ind. J. Met. Geophys.22 (1971), 179–186.Google Scholar
  21. [21]
    S. N. Chatterjee, Geophys. J. Roy. Astro. Soc.23 (1971), 129–138.Google Scholar

Copyright information

© Birkhäuser-Verlag 1973

Authors and Affiliations

  • R. K. Dube
  • J. C. Bhayana
  • H. M. Chaudhury
    • 1
  1. 1.Scismological ObservatoryMeteorological OfficeNew Delhi-3India

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