Spatial variation of coda wave attenuation in the Southern Indian Shield and its implications


  • C. SINGH Department of Geology and Geophysics
  • S.K. BASHA National Geophysical Research Institute
  • M. SHEKAR National Geophysical Research Institute
  • R.K. CHADHA National Geophysical Research Institute



Coda Q, Attenuation characteristics, Indian peninsular shield, Heat flow


During the recent past the Indian peninsular shield has experienced six damaging earthquakes of M 5.4-7.7 and compelled to readdress our understanding of the seismic attenuation characteristics for better evaluation of the seismic hazards in the so-called stable shield. We have performed the seismic attenuation study using coda waves of the broadband network from 1995 to 2009 for the shield region. About 400 local earthquakes M 2.5-4.0 within an epicentral distance of 250km are used in this study. The broadband seismic stations established are in different geological provinces, such as the Archaean Dharwar craton, the southern granulite terrain, the Proterozoic Cuddapah basin, the Godavari graben, the Cretaceous-Eocene Deccan volcanic province and in the Cambay basin. This allows us to understand the fluctuation of Q0 in terms of spatial variations in the geologic and tectonic provinces. The results reflect a ubiquitous observation of frequency dependence of Qc in the different geologic provinces. The rift basins exhibit lower Q0, which suggests higher attenuation due to a more heterogeneous structure. Higher Q0 in the western Dharwar craton infers lower attenuation. Similarly the Deccan volcanic province is characterized by significantly higher Q0. The results show a good correlation with the observed heat flow. The study fills an important gap in knowledge about the Q factor as well as of crustal attenuation conditions in the whole southern peninsular shield of India.


Agrawal, P.K., Pandey, O.P., 1999. Relevance of hot underlying asthenosphere to the occurrence of Latur earthquake and Indian peninsular shield seismicity. Geodynamics, 28, 303-316.

Aki, K., 1980. Attenuation of shear waves in the lithosphere for frequencies from 0.05 to 25Hz. Physics of the Earth and Planetary Interiors, 21, 50-60.

Aki, K., 1969. Analysis of the seismic coda of local earthquakes as scattered waves. Journal of Geophysical Research, 74, 615-631.

Aki, K., 1985. Theory of earthquake prediction with special reference to monitoring of the quality factor of lithosphere by the coda method, Earthquake Prediction Research, 3, 219-230.

Aki, K., Chouet, B., 1975. Origin of the coda waves: source attenuation and scattering effects. Journal of Geophysical Research, 80, 3322-3342.

Aki, K., Richards, P.G., 1980. Quantitative seismology, theory and methods. San Francisco, W.H. Freeman and Company, 1, 556pp.

Akinci, A., Taktak, A.G ., Ergintav, S., 1994. Attenuation of coda waves in Western Anatolia. Physics of the Earth and Planetary Interiors, 87, 155-165.

Atkinson, G.M., Boore, D.M., 1995. Ground Motion Relations for Eastern North America. Bulletion of Seismological Society of America, 85, 17-30.

Bhaskar Rao, Y.J., Janardhan, A.S., Vijaya Kumar, T., Narayana, B.L., Dayal, A.M., Taylor, P.N., Chetty, T.R.K., 2003. Sm-Nd model ages and Rb-Sr isotopic systematics of charnockites and gneisses across the Cauvery Shear Zone, southern India: implications for the Archaean- Neoproterozoic terrane boundary in the Southern Granulite Terrain. In: Ramakrishnan, M. (ed.). Tectonics of Southern Granulite Terrain, Kuppam-Palani Geotransect. Geological Society of India, 50 (Memoir), 297-317.

Biescas, B., Rivera, Z., Zapata, J.A., 2007. Seismic attenuation of coda waves in the eastern region of Cuba. Tectonophysics, 429, 99-109.

Canas, J.A., Pujades, L., Badal, J., Payo, G., Demiguel, F., Vidal, F., Alguacil, G., Ibáñez, J., Morales, J., 1991. Lateral variation and frequency depedence of coda-Q in the southern part of Iberia. Geophysical Journal International, 107, 57-66.

Dwyer, D.J., Herrmann, R.B., Nuttli, O.W., 1984. Use of a digital seismic network to study Lg attenuation and the coda Q in the Central Mississippi Valley. Earthquake Notes, 55(3), 7-8.

Frankel, A., Wennerberg, L., 1987. Energy flux model of seismic coda: speration of scattering and intrinsic attenuation. Bulletin of the Seismological Society of America, 77, 1223-1251.

Gangrade, B.K., Arora, S.K., 2000. Seismicity of the Indian peninsular shield from regional earthquake data. Pure and Applied Geophysics, 157, 1683-1705.

Gao, L.S., Biswas, N.N., Lee, L.C., Aki, K., 1983. Effect on multiple scattering on coda waves in three dimensional medium. Pure and Applied Geophysics, 121, 3-15.

Gao, L.S., 1992. Physical meaning of the coda envelopes, in Volcanic Seismology. Gasparini, P., Scarpa, R., Aki, K. (eds.). I.A.V.C.E.I. Proceedings in Volcanology. New York, Springer-Verlag, 3, 391-403.

Gupta, M.L., Sharma, S.R., Sundar, A., 1991. Heat flow and heat generation in the Archaean Dharwar cratons and implications for the southern Indian shield geotherm and lithospheric thickness. Tectonophysics, 194, 107-122.

Gupta, S.C., Kumar, A., 2002. Seismic wave attenuation characteristics of three Indian regions: A comparative study. Current Science, 82, 407-413.

Halls, H.C., Kumar, A., Srinivasan, R., Hamilton, M.A., 2007. Paleomagnetism and U-Pb geochronology of easterly trending dykes in the Dharwar craton, India: feldspar clouding, radiating dyke swarms and the position of India at 2.37Ga. Precambrian Research, 155, 47-68.

Harinarayana, T., 2007. Comparison of Electrical Structure of the Deep Crust of the Central Indian Shear Zone, Narmada-Son Lineament, Deccan Traps, Southern Granulite Region and Eastern Dharwar Craton. Gondwana Research, 10, 251-261.

Hasegawa, H.S., 1985. Attenuation of Lg waves in the Canadian Shield. Bulletin of the Seismological Society of America, 75, 1569-1582.

Havskov, J., Malone, S., McClurg, D., Crosson, R., 1989. Coda Q for the state of Washington. Bulletin of the Seismological Society of America, 79, 1024-1038.

Havskov, J., Ottemoller, L., 2003. SEISAN: the earthquake analysis software for Windows, Solaris, Linux, and Mac OSX Version 8.0, 244pp.

Hellweg, M., Spudich, P., Fletcher. J.B., Baker, L.M., 1995. Stability of coda Q in the region of Parkfield, California: the view from the USGS Parkfield dense seismograph array. Journal of Geophysical Research, 100, 2089-2102.

Ibáñez, J.M., Pezzo, E. D., De Miguel, F., Herriaz, M., Alguacie, G., Morales, J., 1990. Depth dependent seismic attenuation in the Granada zone (Southern Spain). Bulletin of the Seismological Society of America, 80, 1232-1244.

Jin, A., Aki, K., 2005. High-resolution maps of coda Q in Japan and their interpretation by the brittle-ductile interaction hypothesis. Earth Planets Space, 57, 403-409.

Jin, A., Aki, K., 1989. Spatial and temporal correlation between coda Q-1 and seismicity and its physical mechanism. Journal of Geophysical Research, 94, 14041-14059.

Jin, A., Aki, K., 1988. Spatial and temporal correlation between coda Q and seismicity in China. Bulletin of the Seismological Society of America, 78, 741-769.

Krishna, V.G., Ramesh, D.S., 2000. Propagation of crustalwaveguide-trapped Pg and seismic velocity structure in south Indian shield. Bulletin of the Seismological Society of America, 90, 1281-1294.

Kvamme, L.B., Havskov, J., 1989. Q in southern Norway. Bulletin of the Seismological Society of America, 79, 1575-1588.

Mak, S., Chan, L.S., Chandler, A.M., Koo, R.C.H., 2004. Coda Q estimates in the Hong Kong Region. Journal of Asian Earth Science, 24, 127-136.

Mandal, P., Rastogi, B.K., 1998. A frequency-dependent relation of coda Qc for Koyna-Warna region India. Pure and Applied Geophysics, 153, 163-177.

Mandal, P., Jainendra., Joshi, S., Kumar, S., Bhunia, R., Rastogi, B.K., 2004. Low coda QC in the Epicentral Region of the 2001 Bhuj Earthquake of Mw 7.7. Pure and Applied Geophysics, 161, 1635-1654.

Mohan, G., Rai, S. S., 1992. Imaging of seismic scatterers beneath the Gauribidanur (GBA) array. Physics of the Earth and Planetary Interiors, 71, 36-45.

Naqvi, S.M., Divakara Rao, V., Narain, H., 1974. The Protocontinental growth of the Indian Shield and antiquity of its rift valleys. Precambrian Research, 1, 345-395.

Phillips, W.S., Lee, W.H.K., Newberry, J.T., 1988. Spatial variation of crustal coda Q in California. Pure and Applied Geophysics, 128, 251-260.

Pujades, L., Canas, J.A., Egozcue, J.J., Puigvi, M.A., Pous, J., Gallart, J., Lana, X., Casas, A., 1991. Coda Q distribution in the Iberian Peninsula. Geophysical Journal International, 100, 285-301.

Pulli, J.J., Aki, K., 1981. Attenuation of seismic waves in the lithosphere: comparison of active and stable areas. In: Beavers, J.E. (ed.). Earthquakes and Earthquake Engineering: The Eastern United States. Michigan, Ann Arbor Science Publishers Inc., Ann Arbor, 129-141.

Pulli, J.J., 1984. Attenuation of coda waves in New England. Bulletin of the Seismological Society of America, 74, 1149-1166.

Qureshy, M.N., Krishna Brahmam, N., Garde, S.C., Mathur, B.K., 1968. Gravity Anomalies and the Godavari Rift, India. Bulletin of the Seismological Society of America, 79, 1221-1230.

Radhakrishna, B.P., 1993. Neogene uplift and geomorphic rejuvenation of Indian peninsula. Current Science, 64, 787-793.

Radhakrishna, B.P., Naqvi, S.M., 1986. Precambrian continental crust of India and its evolution. Journal of Geology, 94, 145-166.

Ramakrishna Rao, C.V., Seshamma, N.V., Mandal, P., 1997. Estimation of coda-QC and spectral characteristics of some moderate earthquakes of Southern Indian Peninsula. Unpublished report.

Rao, B.R., 2000. Historical seismicity deformation rates in the Indian Peninsular Shield. Journal of Seismology, 4, 247-258.

Rautian, T.G., Khalturin, V.I., 1978. The use of the coda for the determination H.N of the earthquake source spectrum. Bulletin of the Seismological Society of America, 68, 923-948.

Ravi Shanker, 1995. Fragmented Indian shield and recent earthquakes. Geology Survey India, 27, 41-48.

Reddy, P.R., Venkateswarlu, N., Koteswara Rao, P., Prasad, A.S.S.S.R.S., 1999. Crustal structure of Peninsular Shield, India from DSS studies. Current Science, 77, 1606-1611.

Rhea, S., 1984. Q determined from local earthquakes in the South Carolina Coastal Plain. Bulletin of the Seismological Society of America, 74, 2257-2268.

Roberts, R.G., Christofferson, A., Cassidy, F., 1989. Real-time event detection, phase identification and source location estimation using single station three- component seismic data. Geophysical Journal, 97, 471-480.

Roecker, S.W., Tucker, B., King, J., Hatzfield, D., 1982. Estimates of Q in Central Asia as a function of frequency and depth using the coda of locally recorded earthquakes. Bulletin of the Seismological Society of America, 72, 129-149.

Roy, S., Rao, R.U.M., 2000. Heat flow in the Indian shield. Journal of Geophysical Research, 105, 25.587-25.604.

Saha, D., 2002. Multi-Stage Deformation in the Nallamalai Fold Belt, Cuddapah Basin, South India–Implications for Mesoproterozoic Tectonism Along Southeastern Margin of India. Gondwana Research, 5, 701-719.

Sarangi, S., Gopalan, K., Srinivasan, R., 2007. Small scale sampling for Pb-Pb dating of marbles: example from the Sargur supracrustal rocks, Dharwar Craton, South India. Precambrian Research, 152, 83-91.

Sarker, G., Abers, G.A., 1998. Comparison of seismic body wave and coda wave measures of Q. Pure and Applied Geophysics, 153, 665-683.

Sarker, G., Abers, G.A., 1999. Lithospheric temperature estimates from seismic attenuation across range fronts in southern and central Eurasia. Geology, 27, 427-430.

Sato, H., 1977. Energy propagation including scattering effects: single isotropic scattering. Journal of Physics of the Earth, 25, 27-41.

Singh, S.K., Herrmann, R.B., 1983. Regionalization of crustal coda Q in the continental United States. Journal of Geophysical Research, 88,527-538.

Singh, S.K., Ordaz, M., Dattatrayam, R.S., Gupta, H.K., 1999. A Spectral Analysis of the May 21, 1997, Jabalpur, India Earthquake (Mw=5.8) and Estimation of Ground Motion from Future Earthquakes in the Indian Shield Region. Bulletin of the Seismological Society of America, 89, 1620-1630.

Singh, S.K., Garcia, D., Pacheco, J.F., Valenzuela, R., Bansal, B.K., Dattatrayam, R.S., 2004. Q of the Indian Shield. Bulletin of the Seismological Society of America, 94, 1564-1570.

Swami Nath, J., Ramakrishnan, M., 1981. Early Precambrian Supracrustals of Southern Karnataka. Geological Survey of India, 112 (Memoir), 351pp.

Tandon, A.N., Srivastava, H.N., 1974. Earthquake occurrence in India. Earthquake Engineering-Jai Krishna Commemoration Volume, Meerut. India, Sarita Prakashan, Chapter 1, 1-48.

Thiagarajan, S., Ramana, D.V., Rai, S.N., 2001. Seismically constrained two-dimensional crustal thermal structure of the Cambay basin. Proceedings of the Indian Academy of Sciences, 110, 1-8.

Tripathi, J.N., 2001. Small-scale structure of lithosphereasthenosphere beneath Gauribidanur Seismic array deduced from amplitude and phase fluctuations. Journal of Geodynamics, 31, 411-428.

Valdiya, K.S., 1993. Latur earthquake of 30 September 1993: Implications and planning for Hazard preparedness. Current Science, 65, 515-517.

Van-Eck, T., 1988. Attenuation of coda waves in the Dead Sea region. Bulletin of the Seismological Society of America, 82, 770-779.

Wu, R.S., 1985. Multiple scattering and energy transfer of seismic waves-separation of scattering effect from intrinsic attenuation-I. Theoretical modeling. Geophysical Journal of the Royal Astronomical Society, 82, 57-80.

Zelt, B.C., Dotzev, N.T., Ellis, R.M., Roger, G.C., 1999. Coda Q in southwestern British Columbia, Canada. Bulletin of the Seismological Society of America, 89, 1083-1093.