Skip to main content Accessibility help
×
Home

Estimation of seismic observation records in the vicinity of large earthquakes and its impact on geological disposal program

  • Hiroyuki Tsuchi (a1), Taishi Oouchi (a1), Yoshikazu Ichikawa (a1), Kazuo Okutsu (a2) and Toru Sasaki (a2)...

Abstract

Japan is located at the converging plate boundaries and is one of the most earthquake-prone zones in the world. In order to ensure the safety of a geological repository against earthquakes, a site with a high possibility of direct destruction by active faults should be excluded, and the relationship between the characteristics of seismic ground motion, subsurface structures, geological disposal system and the propagation characteristics of seismic ground motion should be fully investigated. Earthquake-resistant design based on the latest technology is also very important for ensuring the safety of a geological repository.

Following rapid improvement of seismic observation networks after the Hyogoken Nanbu earthquake in 1995, numerous seismic observation records have been obtained in the vicinity of large earthquakes. According to these seismic observations, some phenomena that might affect the safety of a geological disposal system have occurred. Some earthquakes occurred in the areas where active faults had not been identified, while some records showed that seismic motion in the deep underground environment was greater than that at the surface. We have identified the implications from the latest information concerning large earthquakes for the geological disposal program. This study made it clear that detailed investigation incorporating state-of-the-art technologies could reduce the likelihood of missing active faults to an extremely low level and a more practical analysis of seismic ground motion could be achieved by taking the latest information into account.

Copyright

References

Hide All
1 Japan Nuclear Cycle Development Institute, H12 Project to Establish the Scientific and Technical Basis for HLW Disposal in Japan, Project Overview Report, 2nd Progress Report on Research and Development for the Geological Disposal of HLW in Japan, JNC Technical Report TN1410 2000-001 (2000)
2 Nuclear Safety Committee of Japan, Regulatory Guide for Reviewing Seismic Design of Nuclear Power Reactor Facilities (2006)
3 Goto, Junichi, Tsuchi, Hiroyuki, Mashimo, Mitsugu, Examination of Earthquake Ground Motion in the Deep Underground Environment of Japan, IGSC (2007)
4 Inoue, Daiei, Miyakoshi, Katsuyoshi, Ueta, Keiichi, Miyawaki, Akiko, Matsuura, Kazuki, Active Fault Study in the 2000 Tottori-ken Seibu Earthquake Area, Zisin, Second Series,54,4,557573 (2002) (in Japanese with English abstaract)
5 Okamura, Yukinobu, Ishiyama, Tetsuya, Construction of balanced cross-section in the source area of the 2004 Mid Niigata Prefecture Earthquake, Annual Report on Active Fault and Paleoeathquake Researches, No.5, pp.1728 (2005) (in Japanese with English abstract)
6 Headquarters for Earthquake Research Promotion, Long-term Estimation of Kego Fault Zone (http://www.jishin.go.jp/main/chousa/07mar_kego/index.htm) (2007) (in Japanese)
7 Sugiyama, Yuichi, Lessons from the Chuetsu-oki earthquake and seismic safety research from the geological viewpoint, Nuclear Safety Research Forum 2008 (2008)
8 Naoshi, Hirata, Hiroshi, Satou, Noto Hantou Earthquake aftershocks joint observation group, Significance of the Noto Hanto Earthquake of 2007, Kagaku, June 2007 (2007) (in Japanese)
9 Earthquake Research Institute, the University of Tokyo, JGI Inc., Iwate University Engineering Department, Aftershock distribution and crustal structure based on high density alley observation at the northern part of seismic source area of the Iwate-Miyagi Nairiku Earthquake, 191st Earthquake Research Committee (2008) (in Japanese)
10 Miyake, Hiroe, Furumura, Takashi, Kouketsu, Kazuki, The Miyagiken-oki Earthquake in 2005, (http://taro.eri.u-tokyo.ac.jp/saigai/miyagi/index.html) (2005) (in Japanese)
11 Headquarters for Earthquake Research Promotion, Estimation of the Iwate-Miyagi Nairiku Earthquake in 2008, June 26, 2008, Earthquake Research Committee (2008) (in Japanese)
12 Kouketsu, Kazuki, Future of Seismic Safety Research Based on the 2007 Chuetsu-oki Earthquake, Nuclear Safety Research Forum 2009 (2009)

Estimation of seismic observation records in the vicinity of large earthquakes and its impact on geological disposal program

  • Hiroyuki Tsuchi (a1), Taishi Oouchi (a1), Yoshikazu Ichikawa (a1), Kazuo Okutsu (a2) and Toru Sasaki (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed