Crustal shear-wave splitting in the epicentral zone of the 2001 Mw 7.7 Bhuj earthquake, Gujarat, India

Journal of Geodynamics

Volumn 47, Issue 5, 2009, Pages 246-258

  Mandal, Prantik ^a  

^a NATIONAL CHEMICAL LABORATORY   (India)

Author keywords

Continental crust; Crustal anisotropy; Intraplate earthquakes; Shear wave splitting

Indexed keywords

BHUJ EARTHQUAKE 2001; CONTINENTAL CRUST; CRACK; CRUSTAL STRUCTURE; EARTHQUAKE EPICENTER; EARTHQUAKE HYPOCENTER; FAULT; INTRAPLATE PROCESS; POROSITY; S-WAVE; SEISMIC ANISOTROPY; SEISMOLOGY; STRESS; WAVE SPLITTING;

ASIA; EURASIA; GUJARAT; INDIA; SOUTH ASIA;

EID: 62049085677     PISSN: 02643707     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jog.2009.01.001     Document Type: Article

References (63)

1. Aster R.C., Shearer P.M., and Berger J.J. Quantitative measurements of shear wave polarizations at the Anza seismic network, southern California: implications for shear wave splitting and earthquake prediction. J. Geophys. Res. 95 (1990) 12449-12473
2. Babuska V. Anisotropy of Vp and Vs in rock-forming minerals. J. Geophys. 50 (1981) 1-6
3. Barruol G., and Kern H. Seismic anisotropy and shear-wave splitting in lower crustal and upper-mantle rocks from the Ivrea zone-experimental and calculated data. Phys. Earth Planet. Inter. 95 (1996) 175-194
4. Baurrol G., and Mainprice D. 3D seismic velocities calculated from LPOs and reflectivity of a lower crustal section-example of the Val Sesia (Ivrea Zone, Northern Italy). Geophys. J. Int. 115 (1993) 1169-1188
5. Biswas S.K. Regional framework, structure and evolution of western marginal basins of India. Tectonophysics 135 (1987) 302-327
6. Biswas S.K., and Khattri K.N. A geological study of earthquakes in Kutch, Gujarat, India. J. Geol. Soc. Ind. 60 (2002) 131-142
7. Bodin P., and Horton S. Source parameters and tectonic implications of aftershocks of the Mw7. 6 Bhuj earthquake of January 26, 2001. Bull. Seism. Soc. Am. 94 (2004) 818-827
8. Booth D.C., and Crampin S. Shear-wave polarizations on a curved wavefront at an isotropic free-surface. Geophys. J. R. Astron. Soc. 83 (1985) 31-45
9. Buchbinder C.G.R. Shear wave splitting and anisotropy in the Charlevoix seismic zone, Quebec. Geophys. Res. Lett. 12 (1985) 425-428
10. Bureau of Indian Standards Criteria for Earthquake Resistant Design of Structures (Fifth Revision), 2002, p. 39.
11. Burlini L., and Fountain D.M. Seismic anisotropy of metapelites from the Ivrea-Verbano zone and Serie dei Laghi (N. Italy). Phys. Earth Planet. Inter. 78 (1993) 301-317
12. Christensen N.I. Shear wave velocities in metamorphic rocks at pressures to 10 kilobars. J. Geophys. Res. 71 (1966) 3549-3556
13. Christensen N.I., and Szymanski D.L. Origin of reflections from the Brevard fault zone. J. Geophys. Res. 93 (1988) 1087-1102
14. Chung W.Y., and Gao H. Source parameters of the Anjar earthquake of July 21,1956, India and its seismtectonic implications for the Kachchh rift basin. Tectonophysics 242 (1995) 281-292
15. Cloetingh S.A.P.L., and Wortel M.J.R. Stresses in the Indo-Australian plate. Tectonophysics 132 (1986) 49-67
16. Cooke P.A.V., and Crampin S. Shear-wave splitting in the East Africa rift valley (abstract). EOS 67 (1986) 1117
17. Crampin S. Seismic wave propagation through a cracked solid: polarization as a possible dilatancy diagnostic. Geophys. J. R. Astron. Soc. 53 (1978) 467-496
18. Crampin S., Booth D., Evans R., Peacock S., and Fletcher J. Changes in shear wave splitting at Anza near the time of the North Palm Springs earthquake. J. Geophys. Res. 95 (1990) 11197-11212
19. Crampin S. Geological and industrial implications of extensive dilatancy anisotropy. Nature 328 (1987) 491-496
20. Crampin S. Arguments for EDA. Can. J. Explor. Geophys. 29 (1993) 18-30
21. Crampin S. Developing stress-monitoring sites using cross-hole seismology to stress-forecast the times and magnitudes of future earthquakes. Tectonophysics 338 (2001) 233-245
22. Crampin S., and Booth D.C. Shear wave polarizations near the North Anatolian fault I: evidence for anisotropy-induced shear wave splitting. Geophys. J. R. Astron. Soc. 83 (1985) 61-73
23. Crampin S., Booth D.C., Krasnova M.A., Chesnokov E.M., Maximov A.B., and Tarasov N.T. Shear wave polarizations in the Peter first range indicating crack-induced anisotropy in a thrust-fault regime. Geophys. J. R. Astron. Soc. 84 (1986) 401-412
24. Crampin S., Volti T., Chastin S., Gudmundsson A., and Stefansson R. Indication high pore-fluid pressures in a seismically active fault zone. Geophys. J. Int. 151 (2002) F1-F5
25. Crampin, S., 2004. Comments on "Local shear wave observations in Joao Camara, northeast Brazil" by A.F. do Nascimento, R.G. Pearce, and M.K. Takeya. J. Geophys. Res. 109, B02313, doi:10.1029/2003JB002681.
26. Crampin S., and Zatsepin S.V. Modeling the compliance of crustal rock: II - response to temporal changes before earthquakes. Geophys. J. Int. 129 (1997) 495-506
27. Crampin S., and Gao Y. A review of techniques for measuring shear-wave splitting above small earthquakes. Phys. Earth Planet. Inter. 159 (2006) 1-14
28. Du X.X. On shear wave splitting in the Los Angeles basin. Pageoph 134 (1990) 175-194
29. Evans R. Effects of the free surface on shear wavetrains. Geophys. J. Roy. Astr. Soc. 76 (1984) 165-172
30. Gowd T.N., Srirama Rao S.V., and Gaur V.K. Tectonic stress field in the Indian subcontinent. J. Geophys. Res. 97 (1992) 11,879-11,888
31. Gupta H.K., Harinarayana T., Kousalya M., Mishra D.C., Mohan I., Purnachandra Rao N., Raju P.S., Rastogi B.K., Reddy P.R., and Sarkar D. Bhuj earthquake of 26 January 2001. J. Geolog. Soc. Int. 57 (2001) 275-278
32. Gupta I.N. Premonitory changes in shear velocity anisotropy in Neveda. Proc. Conf. Tec. Prob. San Andreas Fault. vol. 13 (1973) 479-488
33. Kaneshima S., Ando M., and Crampin S. Shear wave splitting above small earthquakes in Kinki district of Japan. Phys. Earth Planet. Inter. 445 (1987) 45-58
34. Leary P.C., and Henyey T.L. Anisotropy and fracture zones about a geothermal well from P wave velocity profiles. Geophysics 50 (1985) 25-36
35. Leary P.C., Li Y.G., and Aki K. Observation and modelling of fault zone fracture seismic anisotropy - I, P, SV, and SH travel times. Geophys. J. R. Astron. Soc. 91 (1987) 461-484
36. Lee, W.H.K., Valdes, C.M., 1985. HYPO71PC: a personal computer version of the HYPO71 earthquake location program, U.S. Geol. Surv. Open File Report 85-749, p. 43.
37. Li Y.G., Leary P.C., and Henyey T.L. Stress orientation inferred from shear wave splitting in basement rock, at Cajon Pass. Geophys. Res. Lett. 15 (1988) 997-1000
38. Lou M., and Rial J.A. Characterization of the crack geometry at the Coso, California geothermal reservoir by analysing shear-wave splitting from micro-earthquakes. Proceedings of the Nineteenth workshop on Geothermal reservoir Engineering. Stanford University, SGP-TR-147 (1994) 15-20
39. Mandal P., Rastogi B.K., Satyanarayana H.V.S., Kousalya M., Vijayraghavan R., Satyamurthy C., Raju I.P., Sarma A.N.S., and Kumar N. Characterization of the causative fault system for the 2001 Bhuj earthquake of Mw 7.7. Tectonophysics 378 (2004) 105-121
40. Mandal P., Rastogi B.K., Satyanarayana H.V.S., and Kousalya M. Results from local earthquake velocity tomography: implications toward the source process involved in generating the 2001 Bhuj earthquake in the lower crust beneath Kachchh (India). Bull. Seism. Soc. Am. 94 2 (2004) 633-649
41. Mandal P., and Pujol J. Seismic imaging of the Aftershock zone of the 2001 Mw7.7 Bhuj earthquake, India. Geophys. Res. Lett. 33 (2006) 1-4 L05309
42. Mandal P., Horton S., and Pujol J. Relocation, Vp and Vp/Vs tomography, focal mechanisms and other related studies using aftershock data of the Mw 7,7 Bhuj earthquake of January 26, 2001. J. Ind. Geophys. Union 10 (2006) 31-44
43. Mandal P. Sediment Thicknesses and Qs vs. Qp relations in the Kachchh rift basin, Gujarat, India using Sp converted phases. Pure Appl. Geophys. 164 (2007) 135-160
44. Mandal P., and Horton S. Relocation of aftershocks, focal mechanisms and stress inversion: implications toward the seismo-tectonics of the causative fault zone of Mw7.6 2001 Bhuj earthquake (India). Tectonophysics 429 (2007) 61-78
45. Mandal P., Chadha R.K., Raju I.P., Kumar N., Satyamurty C., Narsaiah R., and Maji A. Coulomb static stress variations in the Kachchh, Gujarat, India: Implications for the occurrences of two recent earthquakes (Mw 5.6) in the 2001 Bhuj earthquake region. Geophys. J. Int. 169 (2007) 281-285
46. Mandal, P., Satyamurthy, C., Raju, I.P., 2008. Iterative de-convolution of the local waveforms: characterization of the seismic sources in Kachchh, India, Tectonophysics, doi:10.1016/j.tecto.2008.11.025.
47. McCalpin, J.P., Thakkar, M.G., 2001. Bhuj-Kachchh earthquake: surface faulting and its relation with neotectonics and regional structures, Gujarat, Western India. In: Pantoshi, D., Berrymann, K., Yeats, R., Kinugasa, Y. (Eds.), Ten years of Paleoseismology in the ILP, Progress and Prospects. Ann. Geophys. 46 (5) (2003) 937-956.
48. Merh S.S. Geology of Gujara (1995), Geological Society of India p. 170
49. Mishra O.P., and Zhao D. Crack density, saturation rate and porosity at the 2001 Bhuj, India, earthquake hypocenter: a fluid-driven earthquake?. Earth Planet. Sci. Lett. 212 (2003) 393-405
50. Nur A., and Simmons G. Stress-induced velocity anisotropy in rock: an experimental study. J. Geophys. Res. 74 (1969) 6667-6674
51. Padhy S., and Crampin S. High pore-fluid pressures at Bhuj, inferred from 90°-flips in shear-wave polarizations. Geophys. J. Int. 164 (2006) 370-376
52. Reasenberg, P.A., Oppenheimer, D., 1885. FPFIT, FPPLOT and FPPAGE: Fortran computer programs for calculating and displaying earthquake fault-plane solutions, U.S. Geological Survey Open-file Report 85-739, p. 90.
53. Rowlands H.J., Booth D.C., and Chiu J.M. Shear-wave splitting from microearthquakes in the New Madrid seismic zone. Can. J. Exp. Geophys. 29 (1993) 352-362
54. Savage M.K., Peppin W., and Vetter U. Shear wave anisotropy and stress direction in and near Long valley caldera, California, 1979-1988. J. Geophys. Res. 95 (1990) 11165-11178
55. Shepherd T.J. Geological link between fluid inclusions, dilatant microcracks, and paleostress field. J. Geophys. Res. 95 (1990) 11115-11120
56. Shih X.R., Meyer P., and Schneider J.F. An automated, analytical method to determine shear-wave splitting. Tectonophysics 165 (1989) 271-278
57. Siegesmund S., Takeshita T., and Kern H. Anisotropy of Vp and Vs in an amphibolite of the deeper crust and its relationship to the mineralogical, microstructural and textural characteristics of the rock. Tectonophysics 157 (1989) 25-38
58. Todokoro K., Ando M., and Umeda Y. S-wave splitting in the aftershock region of the 1995 Hyogo-ken Nanbu earthquake. J. Geophys. Res. 104 (1999) 981-992
59. Volti, T., Crampin, S., 2003. A four-year study of shear wave splitting in Iceland: 2. Temporal changes before earthquakes and volcanic eruptions. In: Nieuwland, D.A. (Ed.), New Insights into structural Interpretation and Modeling, Geol. Soc. London Spec. Publ., vol. 212, pp. 117-133.
60. Von Mises R. Über die 'Ganzzahligkeit' der Atomgewichte und verwandte Fragen. Physikal. Z. 19 (1918) 490-500 Leipzig
61. Walder J., and Nur A. Porosity reduction and crustal pore pressure development. J. Geophys. Res. 89 (1984) 11539-11548
62. Wallbrecher, 2007. Fabric7: A program package for evaluation of orientation data and paleostress data, for strain analysis, and for analysis of fold shapes, Paracelsusgasse, Austria, p. 120 (e-mail: eckart.wallbrecher@uni-graz.at).
63. Zhang Z., and Schwartz S.Y. Seismic anisotropy in the shallow crust of the Loma Prieta segment of the San Andreas fault system. J. Geophys. Res. 99 (1994) 9651-9661