Abstract
We simultaneously inverted strong motion and 1-Hz GPS data recorded during the 2005 west off Fukuoka prefecture earthquake (MJMA 7.0) for its source process. The data at a GPS station near the source region provided strong constraint on the fault geometry and asperity area. The resultant slip distribution suggests a single asperity close to the Genkai island, where many houses were severely damaged. The maximum slip is 1.4 m, and the total seismic moment is 1.0 × 1019 Nm (MW 6.6). We also inverted strong motion data recorded during the largest aftershock (MJMA 5.8). The resultant slip distribution shows two asperities on the fault plane. The maximum slip in the major asperity is 0.12 m and the total seismic moment is 2.0 × 1017 Nm (MW 5.5). The main shock and largest aftershock may cause stress change on the Kego fault, which is a major fault running through the city of Fukuoka.
Article PDF
References
Akaike, H., Likelihood and Bayes procedure, in Bayesian Statistics, edited by J. M. Bernardo et al., pp. 143–166, Univ. Press, Valencia, Spain, 1980.
Goldberg, D. E., Genetic Algorithms in Search, Optimization, and Machine Learning, 412 pp, Addison-Wesley, 1989.
Hikima, K. and K. Koketsu, Source process of the foreshock, mainshock and largest aftershock in the 2003 Miyagi-ken Hokubu, Japan, earthquake sequence, Earth Planets Space, 56, 87–93, 2004.
Irwan, M., F. Kimata, K. Hirahara, T. Sagiya, and A. Yamagiwa, Measuring ground deformations with 1-Hz GPS data: the 2003 Tokachioki earthquake (preliminary report), Earth Planets Space, 56, 389–393, 2004.
Ito, Y, K. Obara, T. Takeda, K. Shiomi, T. Matsumoto, S. Sekiguchi, and S. Hori, Initial-rupture fault, main-shock fault, and aftershock faults: Fault geometry and bends inferred from centroid moment tensor inversion of the 2005 west off Fukuoka prefecture earthquake, Earth Planets Space, 58, this issue, 69–74, 2006.
Iwata, T. and H. Sekiguchi, Source process of the 2000 western Tottori earthquake and strong ground motions in the epicentral area, Earth Monthly, 38, 182–188, 2002 (in Japanese).
Ji, C., K. M. Larson, Y. Tan, K. W. Hudnut, and K. Choi, Slip history of the 2003 San Simeon earthquake constrained by combining 1-Hz GPS, strong motion, and teleseismic data, Geophys. Res. Lett., 31, L17608, doi:10.1029/2004GL020448, 2004.
Kawase, H., K. Nagato, and S. Nakamichi, Damage prediction of Fukuoka city for a scenario earthquake based on strong ground motions evaluated by a hybrid technique, J. Struct. Eng., 49B, 7–16, 2003 (in Japanese with English abstract).
Kobayashi, R. and I. Nakanishi, Application of genetic algorithms to focal mechanism determination, Geophys. Res. Lett., 21, 729–732, 1994.
Kohketsu, K., The extended reflectivity method for synthetic near-field seismograms, J. Phys. Earth, 33, 121–131, 1985.
Koketsu, K., K. Hikima, S. Miyazaki, and S. Ide, Joint inversion of strong motion and geodetic data for the source process of the 2003 Tokachioki, Hokkaido, earthquake, Earth Planets Space, 56, 329–334, 2004.
Koyama, J., N. V. Shestakov, and R. Honda, Strong ground motion recorded by high-rate sampling GPS at the closest site to the 2003 Tokachi-oki earthquake, Earth Planets Space, 56, 383–387, 2004.
Larson, K. M., P. Bodin, and J. Gomberg, Using 1-Hz GPS data to measure deformations caused by the Denali fault earthquake, Science, 300, 1421–1424, 2003.
Miyazaki, S., K. M. Larson, K. Choi, K. Hikima, K. Koketsu, P. Bodin, J. Haase, G. Emore, and A. Yamagiwa, Modeling the rupture process of the 2003 September 25 Tokachi-Oki (Hokkaido) earthquake using 1-Hz GPS data, Geophys. Res. Lett., 31, L21603, doi:10.1029/2004GL02145, 2004.
National Research Institute for Earth Science and Disaster Prevention, Spatial distribution of F-net moment tensor solutions for the 2005 West Off Fukuoka earthquake, Report of the coordinating committee for earthquake prediction, 74, 477–478, 2005.
Nishimura, T., S. Fujiwara, M. Murakami, H. Suito, M. Tobita, and H. Yarai, Fault model of the 2005 Fukuoka-ken Seiho-oki earthquake estimated from coseismic deformation observed by GPS and InSAR, Earth Planets Space, 58, this issue, 51–56, 2006.
Satoh, T. and H. Kawase, Simulation of strong motions in Fukuoka City during the 2005 West Off Fukuoka Prefecture Earthquake with special reference to thick Quaternary sediments around the Kego fault, Earth Planets Space, 58, this issue, 105–110, 2006.
Semmane, F., F. Cotton, and M. Campillo, The 2000 Tottori earthquake: A shallow earthquake with no surface rupture and slip properties controlled by depth, J. Geophys. Res., 110, B03306, doi:10.1029/2004JB003194, 2005.
Wessel, P. and W. H. F. Smith, Free software helps map and display data, EOS Trans. Am. Geophys. Union, 72, 441–446, 1991.
Yoshida, S., K. Koketsu, B. Shibazaki, T. Sagiya, T. Kato, and Y. Yoshida, Joint inversion of near- and far-field waveforms and geodetic data for the rupture process of the 1995 Kobe earthquake, J. Phys. Earth, 44, 437–454, 1996.
Zhu, L. and L. A. Rivera, A note on the dynamic and static displacements from a point source in multilayered media, Geophys. J. Int., 148, 619–627, 2002.
Zumberge, J. F., M. B. Heflin, D. C. Jefferson, M. M. Watkins, and F. H. Webb, Precise point positioning for the efficient and robust analysis of GPS data from large networks, J. Geophys. Res., 102, 5005–5017, 1997.
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
Kobayashi, R., Miyazaki, S. & Koketsu, K. Source processes of the 2005 West Off Fukuoka Prefecture earthquake and its largest aftershock inferred from strong motion and 1-Hz GPS data. Earth Planet Sp 58, 57–62 (2006). https://doi.org/10.1186/BF03351914
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03351914