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JDR Vol.8 No.5 pp. 861-868
(2013)
doi: 10.20965/jdr.2013.p0861

Paper:

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Exposure Analysis Using the Probabilistic Seismic Hazard Maps for Japan

Nobuoto Nojima*, Satoshi Fujikawa**, Yutaka Ishikawa**,
Toshihiko Okumura**, Hiroyuki Fujiwara***,
and Nobuyuki Morikawa***

*Department of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan

**Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo 135-8530, Japan

***National Research Institute for Earth Science and Disaster Prevention, 31 Tennodai, Tsukuba, Ibaraki 305-0006, Japan

Received:
May 7, 2013
Accepted:
August 12, 2013
Published:
October 1, 2013
Creative Commons License
Keywords:
probabilistic seismic hazard maps, JMA Seismic Intensity, area exposure, population exposure, site amplification factor
Abstract
With the aim of better understanding and more effective utilization of probabilistic seismic hazard maps in Japan, exposure analysis has been carried out by combining hazard maps with population distribution maps. Approximately 80% of the population of Japan is exposed to a relatively high seismic hazard, i.e., a 3% probability of exceeding JMAseismic intensity 6 lower within 30 years. In highly populated areas, specifically in major metropolitan areas, seismic hazard tends to relatively high because of the site amplification effects of holocene deposits. In implementing earthquake disaster mitigation measures, it is important to consider the overlapping effect of seismic hazard and demographic distributions.
Cite this article as:
N. Nojima, S. Fujikawa, Y. Ishikawa, T. Okumura, H. Fujiwara, and N. Morikawa, “Exposure Analysis Using the Probabilistic Seismic Hazard Maps for Japan,” J. Disaster Res., Vol.8 No.5, pp. 861-868, 2013.
Data files:
References
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Last updated on Apr. 19, 2024