Decade-scale decrease in b value prior to the M9-class 2011 Tohoku and 2004 Sumatra quakes

Geophysical Research Letters

Volumn 39, Issue 20, 2012, Pages

  Nanjo, K Z ^a,b   Hirata, N ^b   Obara, K ^b   Kasahara, K ^b  

^a NATIONAL RESEARCH INSTITUTE FOR EARTH SCIENCE AND DISASTER PREVENTION   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84868035108     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2012GL052997     Document Type: Article

References (30)

1. Amitrano, D. (2012), Variability in the power-law distributions of rupture events: How and why does b-value change, Eur. Phys. J. Spec. Top., 205, 199-215, doi:10.1140/epjst/e2012-01571-9.
2. Amitrano, D., J. R. Grasso, and G. Senfaute (2005), Seismic precursory patterns before a cliff collapse and critical point phenomena, Geophys. Res. Lett., 32, L08314, doi:10.1029/2004GL022270. (Pubitemid 41043252)
3. Ghosh, A., A. V. Newman, A. M. Thomas, and G. T. Farmer (2008), Interface locking along the subduction megathrust from b-value mapping near Nicoya Peninsula, Costa Rica, Geophys. Res. Lett., 35, L01301, doi:10.1029/ 2007GL031617. (Pubitemid 351459810)
4. Girard, L., D. Amitrano, and J. Weiss (2010), Failure as a critical phenomenon in a progressive damage model, J. Stat. Mech., 2010, P01013, doi:10.1088/1742-5468/2010/01/P01013.
5. Gutenberg, B., and C. F. Richter (1944), Frequency of earthquakes in California, Bull. Seismol. Soc. Am., 34, 185-188.
6. Harada, T., K. Satake, and K. Ishibashi (2011), Space-time pattern of great or large earthquakes along the northern Japan to Kurile trenches, paper presented at Japan Geoscience Union Meeting 2011, Chiba-city.
7. Hirose, F., A. Nakamura, and A. Hasegawa (2002), b-value variation associated with the rupture of asperities-Spatial and temporal distributions of b-value east off NE Japan (in Japanese), J. Seismol. Soc. Jpn., 55, 249-260.
8. Hirose, F., K. Miyaoka, N. Hayashimoto, T. Yamazaki, and M. Nakamura (2011), Outline of the 2011 off the Pacific coast of Tohoku Earthquake (Mw 9.0)-Seismicity: foreshocks, mainshock, aftershocks, and induced activity-, Earth Planets Space, 63, 513-518, doi:10.5047/eps.2011.05.019.
9. Ide, S., A. Baltay, and G. C. Beroza (2011), Shallow dynamic overshoot and energetic deep rupture in the 2011 Mw 9.0 Tohoku-Oki earthquake, Science, 332, 1426-1429, doi:10.1126/science.1207020.
10. Japan Meteorological Agency (2003), Revision of JMA magnitude (in Japanese), Newslett. Seismol. Soc. Jpn., 15, 5-9.
11. Lay, T., et al. (2005), The great Sumatra-Andaman earthquake of 26 December 2004, Science, 308, 1127-1133, doi:10.1126/science.1112250. (Pubitemid 40696425)
12. Lei, X. (2003), How do asperities fracture? An experimental study of unbroken asperities, Earth Planet. Sci. Lett., 213, 347-359, doi:10.1016/S0012-821X(03)00328-5. (Pubitemid 37061276)
13. McCaffrey, R. (2007), The next great earthquake, Science, 315, 1675-1676, doi:10.1126/science.1140173. (Pubitemid 46515613)
14. Mogi, K. (1963), The fracture of a semi-infinite body caused by an inner stress origin and its relation to the earthquake phenomena (Second Paper), Bull. Earthquake Res. Inst. Univ. Tokyo, 41, 595-614.
15. Nanjo, K. Z., et al. (2010), Analysis of the completeness magnitude and seismic network coverage of Japan, Bull. Seismol. Soc. Am., 100, 3261-3268, doi:10.1785/0120100077.
16. Narteau, C., S. Byrdina, P. Shebalin, and D. Schorlemmer (2009), Common dependence on stress for the two fundamental laws of statistical seismology, Nature, 462, 642-645, doi:10.1038/nature08553.
17. Obara, K., K. Kasahara, S. Hori, and Y. Okada (2005), A densely distributed high-sensitivity seismograph network in Japan: Hi-net by National Research Institute for Earth Science and Disaster Prevention, Rev. Sci. Instrum., 76, 021301, doi:10.1063/1.1854197. (Pubitemid 40238171)
18. Ozawa, S., T. Nishimura, H. Suito, T. Kobayashi, M. Tobita, and T. Imakiire (2011), Coseismic and postseismic slip of the 2011 magnitude-9 Tohoku-Oki earthquake, Nature, 475, 373-376, doi:10.1038/nature10227.
19. Satake, K., F. Nanayama, and S. Yamaki (2008), Fault models of unusual tsunami in the 17th century along the Kuril trench, Earth Planets Space, 60, 925-935.
20. Sato, M., et al. (2011), Displacement above the hypocenter of the 2011 Tohoku-Oki earthquake, Science, 332, 1395, doi:10.1126/science.1207401.
21. Scholz, C. (1968), Microfractures, aftershocks, and seismicity, Bull. Seismol. Soc. Am., 58, 1117-1130.
22. Schorlemmer, D., and S. Wiemer (2005), Microseismicity data forecast rupture area, Nature, 434, 1086, doi:10.1038/4341086a. (Pubitemid 40663479)
23. Schorlemmer, D., S. Wiemer, and M. Wyss (2005), Variation in earthquake-size distribution across different stress regimes, Nature, 437, 539-542, doi:10.1038/nature04094. (Pubitemid 41613549)
24. Shi, Y., and B. A. Bolt (1982), The standard error of the magnitude-frequency b-value, Bull. Seismol. Soc. Am., 72, 1677-1687.
25. Simons, M., et al. (2011), The 2011 magnitude 9.0 Tohoku-Oki earthquake: Mosaicking the megathrust from seconds to centuries, Science, 332, 1421-1425, doi:10.1126/science.1206731.
26. Smith, W. D. (1981), The b-value as an earthquake precursor, Nature, 289, 136-139, doi:10.1038/289136a0.
27. Sobiesiak, M., U. Meyer, S. Schmidt, H.-J. Götze, and C. M. Krawczyk (2007), Asperity generating upper crustal sources revealed by b value and isostatic residual anomaly grids in the area of Antofagasta, Chile, J. Geophys. Res., 112, B12308, doi:10.1029/2006JB004796.
28. Suyehiro, S., T. Asada, and M. Ohtake (1964), Foreshocks and aftershocks accompanying a perceptible earthquake, Meteorol. Geophys., 15, 71-88.
29. Woessner, J., and S. Wiemer (2005), Assessing the quality of earthquake catalogues: Estimating the magnitude of completeness and its uncertainty, Bull. Seismol. Soc. Am., 95, 684-698, doi:10.1785/0120040007. (Pubitemid 40801275)
30. Yabe, Y. (2003), Frictional property of plate interface east off NE Japan inferred from spatial variation in b-value, Bull. Earthquake Res. Inst. Univ. Tokyo, 78, 107-111.