Abstract
This paper presents variation of Gutenberg–Richter law parameter b for epicentral regions of large earthquakes in different earthquake prone areas in the world like Japan, California, Sichuan province (China), North-Eastern India, Maule (Chile), L’Aquila (Italy), Off-west-coast of New Zealand, Sumatra (2004 tsunami region) from both clustered and de-clustered catalogs. A decreasing trend of b before major earthquakes is observed in most cases and after a large event the b value shows an increasing trend. It is shown that the variation of b for foreshock and aftershock of a large event in a region also follows the same trend.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs12648-014-0588-1/MediaObjects/12648_2014_588_Fig1_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs12648-014-0588-1/MediaObjects/12648_2014_588_Fig2_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs12648-014-0588-1/MediaObjects/12648_2014_588_Fig3_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs12648-014-0588-1/MediaObjects/12648_2014_588_Fig4_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs12648-014-0588-1/MediaObjects/12648_2014_588_Fig5_HTML.gif)
Similar content being viewed by others
References
S K Chakrabarti, S K Mandal, S Sasmal, D Bhowmick, A K Choudhury and N N Patra Indian J. Phys. 84 1461 (2010)
S K Chakrabarti, M Saha, R Khan, S Mandal, K Acharyya and R Saha Ind. J. Radio Space Phys. 34 314 (2005)
P Varotsos, K Alexopoulos and M Lazaridou Tectonophysics 224 1 (1993)
P Varotsos and D Miliotis J. Phys. Chem. Solids 35 927 (1974)
P Varotsos and K Alexopoulos Physica Status Solidi A47 K133 (1978)
M Lazaridou, C Varotsos, K Alexopoulos and P Varotsos J. Physics C: Solid State 18 3891 (1985)
D Kostopoulos, P Varotsos and S Mourikis Canadian J. Phys. 53 1318 (1975)
B Nikouravan Int. J. Fund. Phys. Sci. 2 20 (2012)
S K Midya and P K Gole Indian J. Phys. 88 1 (2014)
S K Midya and P Panda Pacific J. Sci. Technol. 14 586 (2013)
S K Midya, A K Dutta and P Panda Mausam 62 245 (2011)
S K Jain, G Panda and S K Vijay Indian J. Phys. 84 359 (2010)
A Cao and S S Gao Geophys. Res. Lett. 29 48 (2002)
Y Tsukakoshi and K Shimazaki Earth Planets Space 60 915 (2008)
P A Varotsos, N V Sarlis and E S Skordas Practica of Athens Academy 76 294 (2001)
P A Varotsos, N V Sarlis and E S Skordas Acta Geophys. Polonica 50 337 (2002)
N V Sarlis and E S Skordas, M S Lazariidou and P A Varotsos Proc. Jpn. Acad. Sci. B84 331 (2008)
S Abe, N V Sarlis and E S Skordas, H K Tanaka and P A Varotsos Phys. Rev. Lett. 94 170601 (2005)
P A Varotsos, N V Sarlis and E S Skordas Nat. Hazards Earth Syst. Sci. 12 3473 (2012)
C H Chan, Y M Wu, T L Tseng, T L Lin and C C Chen Tectonophys. 532-535 215 (2012)
S Kumar Geosci. Res. 3 83 (2012)
G F Karakaisis, A S Savvaidis and C B Papazachos Pure Appl. Geophys. 160 1479 (2003)
S S Teotia and D Kumar Nonlinear Process. Geophys. 18 111 (2011)
S Gresta and G Patane G. Pure Appl. Geophys. (Pageoph) 121 903 (1983)
W D Smith Nature 289 136 (1981)
W D Smith W D Geophys. J.R. Astr. Soc. 86 815 (1986)
N S Al-Arifi and S Al-Humidan Int. J. Phys. Sci. 6 8171 (2011)
S Dasgupta, B Mukhopadhyay and A Bhattacharya J. Earth Syst. Sci. 116 215 (2007)
H C Ma Acta Geophys. Sinica 21 126 (1978)
B Enescu, D Enescu and K Ito Romanian Journ. Phys. 56 590 (2011)
S Z Gibowicz Bull. Seism. Soc. Am. 63 517 (1973)
B Gutenberg and C F Richter Bull. Seism. Soc. Am. 34 185 (1944)
K Aki Bull. Earthq. Res. Inst. 43 237 (1965)
G K Gardener and L Knopoff Bull. Seism. Soc. Am. 64 1363 (1974)
E Yenier, O Erdogan and S Akkar The 14th World Conf. on Earthquake Engineering, Beijing, China (2008)
P Nuannin and O Kulhanek J. Earth Sci. Eng. 2 166 (2012)
G A Papadopoulos, M Charalampakis, A Fokacfs and G Minadakis Nat. Hazards Earth Syst. Sci. 10 19 (2010)
M Imoto Ann. Inst. Statist. Math. 43 202 (1991)
J Henderson, I Main, P Meredith and P Sammonds J. Struct. Geo. 14 905 (1992)
Acknowledgments
The authors would like to thank United States Geological Survey (USGS) and International Seismological Center (ISC) for making the earthquake data freely available on their websites.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Midya, S.K., Gole, P.K. Variation of regional Gutenberg–Richter law parameter before and after large earthquakes in some earthquake prone zones around the world. Indian J Phys 88, 1227–1234 (2014). https://doi.org/10.1007/s12648-014-0588-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12648-014-0588-1