Stochastic finite fault modelling of M w 4.8 earthquake in Kachchh, Gujarat, India

Journal of Seismology - Tập 16 - Trang 435-449 - 2012
Sumer Chopra1,2, Dinesh Kumar3, Pallabee Choudhury2, R. B. S. Yadav4
1Seismology Division, Ministry of Earth Sciences, Prithvi Bhavan, New Delhi, India
2Institute of Seismological Research, Gandhinagar, India
3Department of Geophysics, Kurukshetra University, Kurukshetra, India
4Indian National Centre for Ocean Information Services, Hyderabad, India

Tóm tắt

The modified stochastic finite fault modelling technique based on dynamic corner frequency has been used to simulate the strong ground motions of M w 4.8 earthquake in the Kachchh region of Gujarat, India. The accelerograms have been simulated for 14 strong motion accelerographs sites (11 sites in Kachchh and three sites in Saurashtra) where the earthquake has been recorded. The region-specific source, attenuation and generic site parameters, which are derived from recordings of small to moderate earthquakes, have been used for the simulations. The main characteristics of the simulated accelerograms, comprised of peak ground acceleration (pga), duration, Fourier and response spectra, predominant period, are in general in good agreement with those of observed ones at most of the sites. The rate of decay of simulated pga values with distance is found to be similar with that of observed values. The successful modelling of the empirical accelerograms indicates that the method can be used to prepare wide range of scenarios based on simulation which provide the information useful for evaluating and mitigating the seismic hazard in the region.

Tài liệu tham khảo

Aki K (1967) Scaling law of seismic spectrum. J Geophys Res 72:1217–1231 Anderson J, Hough S (1984) A model for the shape of the Fourier amplitude spectrum of acceleration at high frequencies. Bull Seismol Soc Am 74:1969–1993 Atkinson GM, Boore DM (1995) Ground motion relations for eastern North America. Bull Seismol Soc Am 85:17–30 Bendick R, Bilham R, Fielding E, Gaur VK, Hough SE, Kier G, Kulkarni MN, Martin S, Mukul M (2001) The 26 January 2001 “Republic Day” earthquake, India. Seismol Res Lett 72:328–335 Beresnev IA, Atkinson GM (1997) Modelling finite fault radiation from the ωn spectrum. Bull Seismol Soc Am 87:67–84 Beresnev IA, Atkinson GM (1998) FINSIM: a FORTRAN program for simulating stochastic acceleration time histories from finite faults. Seismol Res Lett 69:27–32 Beresnev IA, Nightengale AM, Walter J, Silva WJ (2002) Properties of vertical ground motions. Bull Seismol Soc Am 92:3152–3164 BIS (2002) Criteria for earthquake resistant design of structures, IS 1893(part 1). Bureau of Indian Standards, New Delhi Biswas SK (1987) Regional tectonic framework, structure and evolution of the western marginal basins of India. Tectonophysics 135:307–327 Biswas SK (2005) A review of structure and tectonics of Kutch basin, western India, with special reference to earthquake. Curr Sci 88:1592–1600 Bodin P, Malagnini L, Akinci A (2004) Ground-motion scaling in the Kachchh Basin, India, Deduced from aftershocks of the 2001 Mw 7.6 Bhuj earthquake. Bull Seismol Soc Am 94:1658–1669 Boore D (1983) Stochastic simulation of high-frequency ground motions based on seismological models of the radiated spectra. Bull Seismol Soc Am 73:1865–1894 Boore DM (2003) Simulation of ground motion using stochastic method. Pure Appl Geophy 160:635–676 Boore DM, Atkinson G (1987) Stochastic prediction of ground motion and spectral response parameters at hard rock sites in eastern North America. Bull Seismol Soc Am 77:440–467 Borcherdt RD (1970) Effects of local geology on ground motion near San Francisco Bay. Bull Seismol Soc Am 60:29–61 Brune JN (1970) Tectonic stress and the spectra of seismic shear waves from earthquakes. J Geophys Res 75:4997–5009 Brune JN (1971) Seismic sources, fault plane studies and tectonics. Eos 52:178–187 Castro RR, Mucciarelli M, Pacor F, Petrungaro C (1997) S-wave site response using horizontal to vertical spectral ratios. Bull Seismol Soc Am 87:256–260 Chavez-Garcia FJ, Sanchez LR, Hatzfield D (1996) Topographic site effects and HVSR: a comparison between observations and theory. Bull Seismol Soc Am 86:1559–1573 Chopra, Sumer, Yadav RBS, Patel, Hardik, Kumar, Santosh, Rao KM, Rastogi BK, Hameed, Abdul, Srivastava, Sanjay (2008) The Gujarat (India) seismic network. Seism Res Lett 79:799–808 Chopra, Sumer, Dinesh, Kumar, Rastogi BK (2010) Estimation of strong ground motions for 2001 Bhuj (MW 7.6), India earthquake. Pure App Geophy. doi:10.1007/s00024-010-0132-y Dan K, Watanabe T, Tanaka T (1990) Estimation of strong ground motion in epicentral region of the 1976 Tangshan, China, earthquake (Ms 7.8) by semi-empirical method. J Struct Construct Eng 407:23–33 Field EH, Jacob KH (1995) A comparison and test of various site-response estimation techniques, including three that are not reference-site dependent. Bull Seismol Soc Am 85:1127–1143 Gupta HK, Harinarayana T, Kousalya M, Mishra DC, Mohan, Purnachandra Rao N, Raju PS, Rastogi BK, Reddy PR, Sarkar D (2001) Bhuj earthquake of 26 January 2001. J Geol Soc India 57:275–278 Hanks TC (1982) fmax. Bull Seismol Soc Am 72:1867–1879 Hanks TC, McGuire RK (1981) The character of high frequency strong ground motion. Bull Seismol Soc Am 71:2071–2095 Hartzell S (1978) Earthquake aftershock as Green’s functions. Geophys Res Lett 5:1–4 Hutchings L, Wu F (1990) Empirical Green’s functions from small earthquakes: a waveform study of locally recorded aftershocks of the 1971 San Fernando earthquake. J Geophy Res 95:1187–1214 Irikura K (1986) Prediction of strong acceleration motions using empirical Green’s function. In: Proc. 7th Japan Earthquake Engineering Symp., pp 151–156 Irikura K, Kamae K (1994) Estimation of strong ground motion in broad-frequency band based on a seismic source scaling model and an empirical Green’s function technique. Annalidi Geopfisica XXXVII:1721–1743 Johnston AC (1994) Seismotectonic interpretations and conclusions from the stable continental regions. The earthquakes of stable continental regions: assessment of large earthquake potential. Report TR 10261 ch.3. Electric Power & Research Institute, Palo Alto Joshi A, Kumar B, Sinvhal A, Sinvhal H (1999) Generation of synthetic accelerograms by modelling of rupture plane. ISET J Earthq Technol 36:43–60 Joyner WB, Boore DM (1986) On simulating large earthquakes by Green’s-function addition of smaller earthquakes. Earthq Source Mech, AGU Monogr 37:269–274 Khattri KN, Yu G, Anderson JG, Brune JN, Zeng Y (1994) Seismic hazard estimation using modelling of earthquake strong ground motions: a brief analysis of 1991 Uttarkashi earthquake, Himalaya and prognostication for a earthquake in the region. Curr Sci 67:343–353 Kumar D, Khattri KN, Teotia SS, Rai SS (1999) Modelling of accelerograms of two Himalayan earthquakes using a novel semi-empirical method and estimation of accelerogram for a hypothetical great earthquake in the Himalaya. Curr Sci 76:819–830 Lermo J, Garcia JC (1993) Site effect evaluation using spectral ratios with only one station. Bull Seismol Soc Am 83:1574–1594 Lermo J, Garcia JC (1994) Are microtremors useful in site response evaluation? Bull Seismol Soc Am 84:1350–1364 Loukachev I, Pralle N, Gudehus G (2002) Dilatancy-induced P waves as evidence for nonlinear soil behavior. Bull Seismol Soc Am 92:854–862 Mandal P (2009) Estimation of static stress changes after the 2001 Bhuj earthquake: implications towards the northward spatial migration of seismic activity in Kachchh, Gujarat. J Geol Soc Ind 74:487–497 Mandal P, Johnston A (2006) Estimation of source parameters for the aftershocks of the 2001 Mw 7.7 Bhuj earthquake, India. Pure Appl Geophys 163:1537–1560 Mandal P, Chadha RK, Satyamurthy C, Raju IP, Kumar N (2005) Estimation of site response in Kachchh, Gujarat, India, region using H/V spectral ratios of aftershocks of the 2001 Mw 7.7 Bhuj earthquake. Pure Appl Geophy 162:2479–2504 Motazedian D (2006) Region specific key seismic parameters for earthquakes in northern Iran. Bull Seismol Soc Am 96:1383–1395 Motazedian D, Atkinson GM (2005a) Stochastic finite-fault modeling based on dynamic corner frequency. Bull Seismol Soc Am 95:995–1010 Motazedian D, Atkinson GM (2005b) Ground-motion relations for Puerto Rico. Geol Soc Am 385:61–80, special paper Motazedian D, Moinfar A (2006) Hybrid stochastic finite fault modelling of 2003, M6.5 Bam earthquake (Iran). J Seismol 10:91–103 Nakamura Y (1989) A method for dynamic characteristics estimation of subsurface using micro-tremor on the ground surface. QR of RTRI 30:25–33 Nath SK, Raj A, Sharma J, Thingbaijam KKS, Kumar A, Nandy DR, Yadav MK, Dasgupta S, Majumdar K, Kayal JR, Shukla AK, Deb SK, Pathak J, Hazarika PJ, Paul DK, Bansal BK (2008) Site amplification, Qs and source parametrization in Guwahati region from seismic and geotechnical analysis. Seism Res Lett 79:526–539 Ou GB, Herrmann RB (1990) A statistical model for ground motion produced by earthquakes at local and regional distances. Bull Seismol Soc Am 80:1397–1417 Raghukanth STG, Sreelatha S, Dash, Sujit Kumar (2008) Ground motion estimation at Guwahati city for an Mw 8.1 earthquake in the Shillong plateau. Tectonophysics 448:98–114 Rajendran CP, Rajendran K (2001) Character of deformation and past seismicity associated with the 1819 Kachchh earthquake, northwestern India. Bull Seismol Soc Am 91(3):407–426 Riepl J, Bard P-Y, Hatzfeld D, Papaioannou C, Nechtschein S (1998) Detailed evaluation of site-response estimation methods across and along the sedimentary valley of Volvi (EURO-SEISTEST). Bull Seismol Soc Am 88:448–502 Seekins LC, Wennerberg L, Margheriti L, Liu HP (1996) Site amplifications at five locations in San Francisco, California: a comparison of S-waves, codas, and microtremors. Bull Seismol Soc Am 86:627–635 Silva W, Darragh RB (1995) Engineering characterization of strong ground motion recorded at rock sites. Report No. TR-102262. Electric Power Research Institute, Palo Alto Sokolov VY, Loh C-H, Jean W-Y (2007) Application of horizontal-to-vertical (H/V) Fourier spectral ratio for analysis of site effect on rock (NEHRP-class B) sites in Taiwan. Soil Dynan Earthq Engg 27:314–323 Takahashi K, Ohno S, Takemura M, Ohta T, Sugawara Y, Hatori T, Omote S (1992) Observation of earthquake strong-motion with deep borehole: generation of vertical motion propagating in surface layers after S wave arrival. In: Proc. 10th World Conf. Earthquake Eng., Balkema, Rotterdam, Netherlands, pp 1245–1250 Talwani P, Gangopadhyay A (2001) Tectonic framework of the Kachchh earthquake of 26 January 2001. Seism Res Lett 72:336–345 Tohdo M, Hatori T, Chiba O, Takahashi K, Takemura M, Tanaka H (1995) Characteristics of vertical seismic motions and Qp-values in sedimentary layers. J Struct Constr Eng Trans Architectural Inst Japan 475:45–54 (in Japanese with English abstract) Toro G, McGuire R (1987) An investigation into earthquake ground motion characteristics in eastern North America. Bull Seismol Soc Am 77:468–489 Wells DL, Coppersmith KJ (1994) New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement. Bull Seismol Soc Am 84:974–1002 Yadav RBS, Tripathi JN, Rastogi BK, Chopra, Sumer (2008) Probabilistic assessment of earthquake hazard in Gujarat and adjoining regions of India. Pure Appl Geophy 165:1813–1833 Yu G, Khattri KN, Anderson JG, Brune JN, Zeng Y (1995) Strong ground motion from Uttarkashi, Himalaya, India, earthquake: comparison of observations with synthetics using the composite source model. Bull Seismol Soc Am 85:31–50 Zare M, Bard PY, Ghafory, Ashtiany M (1999) Site categorization for Iranian strong motion network. Soil Dyn Earthq Engg 18:101–123 Zeng Y, Anderson JG, Yu G (1994) A composite source model for computing realistic synthetic strong ground motions. Geophys Res Lett 21:725–728