Abstract
A large crustal earthquake, the 2007 Noto Hanto earthquake, occurred west off the Noto peninsula in Ishikawa prefecture, Japan, on March 25, 2007. We started temporary strong motion observation at five sites within the aftershock area from about 13 h after the main shock occurrence. We first applied the spectral inversion method to S-wave strong ground motion records at the temporary and permanent stations. We obtained source specta of the main shock and aftershocks, Q s (quality factor for S-wave) values (Q s = 34.5 f0.95) and site responses at 22 sites. We then estimated a source model of the main shock using the empirical Green’s function method. The source model consists of three strong motion generation areas and well explains the observed records. Finally, we examined the consistency of the main-shock source models estimated from the above two analyses. The high-frequency level of the acceleration source spectrum based on the main-shock source model is consistent with the source spectrum estimated from the spectral inversion. The combined area of strong motion generation areas is approximately half of the value expected by the empirical relationship, and the high-frequency level of acceleration source spectrum is approximately 2.5 times larger than the empirical relationship for shallow inland and inter-plate earthquakes.
Article PDF
References
Aki, K. and P. G. Richards, Quantitative Seismology. vol. 1, 557 pp, W. H. Freeman and Company, 1980.
Andrews, D. J., Objective determination of source parameters and similarity of earthquakes of different size, in Earthquake Source Mechanics, Maurice Ewing Series 6, edited by S. Das, J. Boatwright, and C. H. Scholz, 259–267, Am. Geophys. Union, Washington, D.C., 1986.
Boore, D. M. and J. Boatwright, Average body-wave radiation coefficient, Bull. Seismol. Soc. Am., 74, 1615–1621, 1984.
Brune, N., Tectonic stress and the spectra of seismic shear waves from earthquakes, J. Geophys. Res., 75, 4997–5009, 1970.
Brune, N., Correction, J. Geophys. Res., 76, 5002, 1971.
Dan, K., M. Watanabe, T. Sato, and T. Ishii, Short-period source spectra inferred from variable-slip rupture models and modeling of earthquake faults for strong motion prediction by semi-empirical method, J. Struct. Contr. Eng. AIJ, 545, 51–62, 2001 (in Japanese with English abstract).
Dan, K., T. Sato, and K. Irikura, Characterizing source model for strong motion prediction based on asperity model, in Proc. 11th Japan Earthquake Engineering Symposium, 555–560, 2002 (in Japanese with English abstract).
Das, S. and B. V. Kostrov, Fracture of single asperity on a finite fault, in Earthquake Source Mechanics, Maurice Ewing Series, Vol. 6, American Geophys. Union, 91–96, 1986.
Disaster Prevention Research Institute, Kyoto University and National Research Institute for Earth Science and Disaster Prevention, http://cais.gsi.go.jp/YOCHIREN/JIS/173/image173/018.pdf, 2007.
Fire and Disaster Management Agency, http://www.fdma.go.jp/data/010705141514086149.pdf, 2007.
Geographical Survey Institute, http://cais.gsi.go.jp/YOCHIREN/JIS/173/image173/016-017.pdf, 2007.
Geographical Survey Japan, Geological Map of Japan 1:200,000 Nanao and Toyama, 1967.
Irikura, K., Prediction of strong acceleration motions using empirical Green’s function, Proc. 7th Japan Earthq. Eng. Symp., 151–156, 1986.
Irikura, K., T. Kagawa, and H. Sekiguchi, Revision of the empirical Green’s function method by Irikura (1986) (program and abstracts), Seism. Soc. Japan 2, B25, 1997 (in Japanese).
Iwata, T. and K. Irikura, Source parameters of the 1983 Japan Sea earthquake sequence, J. Phys. Earth., 36, 155–184, 1988.
Kamae, K. and K. Irikura, Source model of the 1995 Hyogo-ken Nanbu earthquake and simulation of near-source ground motion, Bull. Seismol. Soc. Am., 88, 400–412, 1998.
Kamae, K., K. Irikura, and Y. Fukuchi, Prediction of strong ground motion for M 7 earthquake using regional scaling relations of source parameters, J. Struct. Constr. Eng, AIJ, 416, 57–70, 1990 (in Japanese with English abstract).
Kato, K. and T. Ikeura, Source, path, and site effects of the Noto Hanto Earthquake in 2007; Preliminary results based on K-NET and KiK-net records, Japan Geoscience Union Joint Meet., Z255–P036, 2007.
Maeda, T. and T. Sasatani, Two-layer Qs structure of the slab near the southern Kurile trench, Earth Planets Space, 58, 543–553, 2006.
Miyake, H., T. Iwata, and K. Irikura, Source characterization for broadband ground-motion simulation: kinematic heterogeneous source model and strong motion generation area, Bull. Seismol. Soc. Am., 93, 2531–2545, 2003.
Somerville, P., K. Irikura, R. Graves, S. Sawada, D. Wald, N. Abrahamson, Y. Iwasaki, T. Kagawa, N. Smith, and A. Kowada, Characterizing crustal earthquake slip models for the prediction of strong ground motion, Seismol. Res. Lett., 70, 59–80, 1999.
Wessel, P. and W. H. Smith, New version of the Generic Mapping Tools released, EOS Trans. AGU, 329, 1995.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Maeda, T., Ichiyanagi, M., Takahashi, H. et al. Source parameters of the 2007 Noto Hanto earthquake sequence derived from strong motion records at temporary and permanent stations. Earth Planet Sp 60, 1011–1016 (2008). https://doi.org/10.1186/BF03352861
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03352861