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Earthquake Forerunner as Probable Precursor - An Example from North Burma Subduction Zone
The Burmese Arc seismic activity is not uniform for its ~ 1100 km length; only the Northern Burmese Arc (NBA) is intensely active. Six large earthquakes in the magnitude range 6.1 - 7.4 have originated from the NBA Benioff zone between 1954 -2011, within an area of 200 × 300 km2 where the Indian plate subducts eastward to depths beyond 200 km below the Burma plate. An analysis on seismogenesis of this interplate region suggests that while the subducting lithosphere is characterized by profuse seismicity, seismicity in the overriding plate is rather few. Large earthquakes occurring in the overriding plate are associated with the backarc Shan-Sagaing Fault (SSF) further east. The forecasting performance of the Benioff zone earthquakes in NBA as forerunner is analysed here by: (i) spatial earthquake clustering, (ii) seismic cycles and their temporal quiescence and (iii) the characteristic temporal b-value changes. Three such clusters (C1- C3) are identified from NBA Benioff Zones I&II that are capable of generating earthquakes in the magnitude ranges of 7.38 to 7.93. Seismic cycles evidenced for the Zone I displayed distinct quiescence (Q1, Q2 and Q3) prior to the 6th August 1988 (M 6.6) earthquake. Similar cycles were used to forecast an earthquake (Dasgupta et al. 2010) to come from the Zone I (cluster C1); which, actually struck on 4 February 2011 (M 6.3). The preparatory activity for an event has already been set in the Zone II and we speculate its occurrence as a large event (M > 6.0) possibly within the year 2012, somewhere close to cluster C3. Temporal analysis of b-value indicates a rise before an ensuing large earthquake.
Northern Burmese Arc (NBA), Precursor, Seismic Clusters, Seismic Cycles, Temporal Quiescence, Temporal B-Value.
- AKI, K. (1965) Maximum likelihood estimate of b in the formula log N = a-bM and its confidence limits, Bull. Earthquake Res. Inst., Tokyo Univ., v.43, pp.237-239.
- BENDER, B. (1983) Maximum likelihood estimation of b values for magnitude grouped data. Bull. Seism. Soc. Amer., v. 73(3), pp. 831-851.
- CHHIBBER, H.L. (1934) Geology of Burma, MacMillan, London, 538p.
- CICERONE, R.D., EBEL, J.E. and BRITTON, J. (2009) A systematic compilation of earthquake precursors. Tectonophysics, v.476, pp.371-396.
- DASGUPTA, S., MUKHOPADHYAY, M., BHATTACHARYA, A. and Jana, T.K. (2003) The geometry of the Burmese-Andaman subducting lithosphere. Jour. Seismology, v.7, pp.155-174.
- DASGUPTA, S., MUKHOPADHYAY, B. and MUKHOPADHYAY, M. (2010) Next Impending Earthquake in Northern Burmese Arc - Search for A Probable Precursor. Mem. Geol. Soc. India, no.75, pp.69-80.
- ENESCU, B. and ITO, K. (2001) Some premonitory phenomena of the 1995 Hyogo-Ken Nanbu (Kobe) earthquake: seismicity, b-value and fractal dimension, Tectonophysics, v.338, no.3-4, pp.297-314.
- ENESCU, B. and ITO, K. (2002) Spatial analysis of the frequencymagnitude distribution and decay rate of the 2000 Western Tottori earthquake. Earth Planets Space, v. 54(8), pp. 847-860.
- ENGDAHL, E.R. and VILLASEÑOR, A. (2002) Global Seismicity: 1900–1999. In: W.H.K. Lee, H. Kanamori, P.C. Jennings and C. Kisslinger (Eds.), International Handbook of Earthquake and Engineering Seismology, Part A, Chapter 41, Academic Press, pp.665-690.
- GUHA, S.K. and BHATTACHARYA, U. (1984) Studies on prediction of seismicity in northeast India. Proc. World Conf. on Earthquake Engineering, San Francisco, USA, July, pp.21-27.
- GUPTA, H.K. (1985) Cachar earthquake of December 31, 1984- Is it a signal for the beginning of seismic activity? Jour. Geo. Soc. India., v.26, pp.145-147.
- GUPTA, H.K. (1987) Seismicity in northeast India region and earthquake forecast. Indian Jour. Geol., v.59, no.3, pp.165-178.
- GUPTA H.K. (1993) Patterns preceding major earthquakes in northeast India, Curr. Sci., v. 64, no.11-12, pp.889-893.
- GUPTA H.K. and SINGH, H.N. (1986) Seismicity of northeast India region: Part II: Earthquake swarm precursory to moderate magnitude to great earthquakes. Jour. Geol. Soc. India, v.28, pp.367-406.
- GUPTA, H.K. and SINGH, H.N. (1989) Earthquake swarm precursory to moderate magnitude to great earthquakes in northeast India region. Tectonophysics, v.167, pp.255-298.
- GUPTA, H.K. and Singh, V.P. (1982) Is Shillong region, northeast India, undergoing dilatancy stage precursory to a large earthquake? Tectonophysics, v.85, pp.31-33.
- GUZMAN-SPECIALE, M. and Ni, J.F. (1996) Seismicity and active tectonics of the Western Sunda Arc. In: A. Yin and T.M. Harrison, (Eds.), Tectonic Evolution of Asia, Cambridge University Press, pp.63-84.
- HUANG, Q., ONCEL, A.O. and Sobolev, G.A. (2001) Precursory seismicity changes associated with the Mw=7.4 1999 August 17 Izmit (Turkey) earthquake, Geophys. Jour. Internat., v.151, pp.235-242.
- KHATTRI, K.N. (1987) Great earthquakes, seismicity gaps and potential for earthquake disaster along the Himalayan plate boundary, Tectonophysics, v.138, pp.79-92.
- KHATTRI, K.N. (1993) Seismic gaps and likelihood of occurrence of larger earthquake in Northeast India. Curr. Sci., v.64, no.11&12, pp.885-888.
- KHATTRI, K.N. (1999) Probabilities of occurrence of great earthquakes in the Himalayas. Earth Planet. Sci., v.108, pp.87-92.
- KHATTRI, K.N. and WEISS, M. (1978) Precursory variation of seismic rate in Assam Area, India. Geology, v.6, pp.685-688.
- KULHANEK, O. (2005) Seminar on b-value, Dept. of Geophysics, Charles University, Prague, December 10-19.
- MEREDITH, P.G., MAIN, I.G. and JONES, C. (1990) Temporal variations in seismicity during quasi-static and dynamic rock failure. Tectonophysics, v.175, pp.249-268.
- MIGNAN, A. (2011) Retrospective on the Accelerating Seismic Release (ASR) hypothesis: Controversy and new horizons, Tectonophysics, v.505, no.1-4, pp.1-16.
- MOGI, K. (1988) Downward migration of seismic activity prior to some great shallow earthquakes in Japanese subduction zones - a possible intermediate-term precursor. Pure Appld. Geophys., v.126, pp.447-463.
- MONTERROSO, D.A. and KULHÁNEK, O. (2003) Spatial variations of b-values in the subduction zone of Central America. Geofisica Int., v.42(4), pp.1-13.
- MUKHOPADHYAY, B., FNAIS, M., MUKHOPADHYAY, M. and Dasgupta, S. (2010) Seismic cluster analysis for the Burmese-Andaman and West Sunda Arc: insight into subduction kinematics and seismic potentiality. Geomatics, Natural Hazards and Risk, v.1(4), pp.283-314.
- MUKHOPADHYAY, B., ACHARYYA, A. and DASGUPTA, S. (2011) Potential Source Zones for Himalayan Earthquake: Constraints from Spatial-Temporal Clusters. Natural Hazards, v.57, pp.369-383.
- MUKHOPADHYAY, M. and Dasgupta, S. (1988) Deep structure and tectonics of the Burmese arc: constraints from earthquake and gravity data. Tectonophysics, v.149, pp. 299-322.
- MURRU, M., CONSOLE, R. and FALCONE, G. (2009) Real time earthquake forecasting in Italy. Tectonophysics, v.470, pp.214-223.
- NUANNIN P., KULHÁNEK, O. and PERSSON, L. (2005) Spatial and temporal b-value anomalies preceding the devastating off coast of NW Sumatra earthquake of December 26, 2004, Geophys. Res. Lett., v.32, pp.L11307.
- OGATA, Y. (2003) Detection of anomalous seismicity as a stress change sensor. EOS Trans. AGU, no. 84(46), Fall Meeting Suppl., Abstract. 2003.
- RIKITAKE, T. (1975) Earthquake precursors. Bull. Seism. Soc. Amer., v. 65, no. 5, pp. 1133-1162.
- SCHOLZ C. H. (1988) Mechanism of seismic quiescence. Pure Appld. Geophys., v.126, pp.701-718.
- SCHOLZ, C.H. (2002) The mechanics of Earthquakes and Faulting, 2nd Edition. Cambridge Univ. Press, United Kingdom.
- SCHORLEMMER, D., WIEMER S. and WYSS, M. (2004) Earthquake statistics at Parkfield I: stationarity of b-values, Jour. Geophys. Res., v.109, no. B12307.
- SCHORLEMMER, D., WIEMER, S. and WYSS, M. (2005) Variations in earthquake-size distribution across different stress regimes. Nature, v.437, pp.539-542.
- SIBSON, R.H. (2009) Rupturing in overpressured crust during compressional inversion—the case from NE Honshu, Japan. Tectonphysics, v. 473, pp. 404-416.
- SILVERMAN, B.W. (1986) Density Estimation for Statistics and Data Analysis. New York: Chapman and Hall.
- SMITH, W. D. (1986) Evidence for precursory changes in the frequency-magnitude b value. Geophys. Jour. Royal Astro. Soc., v.86, pp.815-838.
- USTU, T. (1965) A method in determining the value of b in a formula logN = a - bM showing the magnitude frequency for earthquakes. Geophys. Bull. Hokkaido Univ., v.13, pp.99-103.
- UYEDA, S., NAGAO, T. and KAMOGAWA, M. (2009) Short-term earthquake prediction: Current status of electromagnetics. Tectonophysics, v.470, pp.205-213.
- WELLS, D.L. and COPPERSMITH, K.J. (1994) New empirical relationships among magnitude, rupture length, rupture width, rupture area and surface displacement. Bull. Seismol. Soc. Amer., v.84(4), pp. 974-1002.
- WIEMER, S. and WYSS, M. (2000) Minimum magnitude of completeness in earthquake catalogs: Examples from Alaska, the Western United States, and Japan. Bull. Seism. Soc. Amer., v. 90(4), pp.859-869.
- WIEMER, S., YOSHIDA, A., HOSONO, K., NOGICHI, S. and TAKAYAMA, H. (2005) Correlating seismicity parameters and subsidence in the Tokai region, central Japan. Jour. Geophys. Res., v.110, pp. B10303.
- WYSS, M. (1997) Second round of evaluations of proposed earthquake precursors, Pure and Appld. Geophys., v.149(1), pp.3-16.
- WYSS, M. and MARTIROSYAN, A.H. (1998) Seismic quiescence before the M 7, 1988, Spitak earthquake, Armenia, Geophys. Jour. Internat., v.134(2), pp.329-340.
- ZOLLER, G., HAINZL, S. and KURTHS, J. (2002) A Systematic Test on Precursory Seismic Quiescence in Armenia. Natural Hazards, v.26, pp.245-263.
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