Nationwide 7.5-Arc-Second Japan Engineering Geomorphologic Classification Map and Vs30 Zoning
Kazue Wakamatsu* and Masashi Matsuoka**
*Department of Civil Engineering, Kanto Gakuin University, 1-50-1, Mutsuura-higashi, Kanazawa-ku, Yokohama 236-8501, Japan
**Department of Built Environment, Tokyo Institute of Technology, 4259-G3-2 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
Local geological and ground conditions play important roles in characterizing and estimating hazards in seismic hazard assessment. The authors recently constructed the Japan Engineering Geomorphologic Classification Map (JEGM), which is a systematically standardized GIS-based ground-condition map containing attributes of geomorphologic classification in grid cells of 7.5 arc-seconds in latitude × 11.25 arc-seconds in longitude for Japan nationwide. This paper introduces the concept of developing the 7.5-arc-second JEGM, and presents sample JEGM images. As an example of the database’s application in estimating hazards, the average shear velocity of the ground in the upper 30m, Vs30 is estimated and mapped for Japan nationwide. Other applications being released include seismic hazard maps of Japan, seismic risk analysis by Central Disaster Prevention Council and local governments, and a Quick Estimation System for Earthquake Maps Triggered by Observation Records (QuiQuake).
-  K. Wakamatsu, S. Kubo, M. Matsuoka, K. Hasegawa, and M. Sugiura, “Japan Engineering Geomorphologic Classification Map with CD-ROM Database,” University of Tokyo Press, Tokyo, 2005 (in Japanese with English abstract and manual).
-  M. Matsuoka, K. Wakamatsu, K. Fujimoto, and S. Midorikawa, “Average shear-wave velocity mapping using Japan Engineering Geomorphologic Classification Map,” Journal of Structural Engineering and Earthquake Engineering, Vol.23, No.1, pp. 57s-68s, 2006.
-  K. Hasegawa, K. Wakamatsu, and M. Matsuoka, “GIS-based nationwide evaluation of erosion rate potential in Japan,” Proc. 2nd Japan-Taiwan JointWorkshop on Geotechnical Hazards from Large Earthquakes and Heavy Rainfall, ATC3-ISSMGE, pp. 108-113, 2006.
-  Administrative Management Agency, Standard Grid Square and Grid Square Code Used for the Statistics, Announcement No.143 on July 12, 1973,
http://www.stat.go.jp/english/data/mesh/02.htm [accessed April 20, 2013]
-  R. A. Zuidam et al., “Aerial Photo-Interpretation in Terrain Analysis and Geomorphologic Mapping,” Smits Publishers, Hague, 1986.
-  R. D. Borcherdt, “Effects of local geology on ground motion near San Francisco Bay,” Bulletion of Seismological Society of America, Vol.60, pp. 29-61, 1994.
-  K. Fujimoto and S. Midorikawa, “Average shear-wave velocity mapping throughout Japan using the Digital National Land Information,” Journal of Japan Association for Earthquake Engineering, Vol.3, No.3, pp. 13-27, 2003 (in Japanese with English abstract).
-  M. Matsuoka, K. Wakamatsu, and M. Hashimoto, “Liquefaction potential estimation based on the 7.5-arc-second Japan Engineering Geomorphologic Classification Map,” Journal of Japan Association for Earthquake Engineering, Vol.11, No.2, pp. 20-39, 2011 (in Japanese with English abstract).
-  The Headquarters for Earthquake Research Promotion, “National Seismic Hazard Maps for Japan,”
http://www.jishin.go.jp/main/index-e.html [cited in 2006]
-  National Research Institute for Earth Science and Disaster Prevention, Japan Seismic Hazard Information Station (J-SHIS),
http://www.j-shis.bosai.go.jp/?lang=en [accessed April 20, 2013]
-  Ministry of Internal Affairs and Communications, “Disaster Countermeasures Basic Act,” 1961,
http://law.e-gov.go.jp/ htmldata/S36/S36HO223.html [accessed April 20, 2013]
-  Central Disaster Management Council, “Estimation of damage due to a Large-Scale Nanai Trough earthquake,” 2012,
http://www.bousai.go.jp/jishin/nankai/taisaku/pdf/20120905_09.pdf [accessed April 20, 2013]
-  Tokyo Metropolitan Government, “Report on Seismic Damage against Scenario Earthquakes in Tokyo Metropolitan” (in Japanese),
http://www.bousai.metro.tokyo.jp/japanese/tmg/research.html [cited in 2006]
-  Saitama Prefecture, “Report on Seismic Damage against Scenario Earthquakes in Saitama Prefecture,” (in Japanese),
http://www.pref.saitama.lg.jp/page/h19higaisoutei.html [cited in 2007]
-  Chiba Prefecture, “Report on Seismic Damage against Scenario Earthquakes in Chiba Prefecture,” (in Japanese),
https://www.pref.chiba.lg.jp/bousai/jishin/higaichousa/houkokusho.html [cited in 2008]
-  Kanagawa Prefecture, “Report on Seismic Damage against Scenario Earthquakes in Kanagawa Prefecture,” (in Japanese),
http://www.pref.kanagawa.jp/osirase/saigai/chousakekka/soutei21.htm [cited in 2009]
-  Gunma Prefecture, “Report on Seismic Damage against Scenario Earthquakes in Gunnma Prefecture,” (in Japanese),
http://www.pref.gunma.jp/05/am4900013.html [cited in 2012]
-  Tokyo Metropolitan Government, “Report on Seismic Damage against Scenario Earthquakes for Near-field Earthquake in Tokyo Mtropolitan,” (in Japanese),
http://www.bousai.metro.tokyo.jp/japanese/tmg/assumption.html [cited in 2012]
-  National Institute of Advanced Industrial Science and Technology, “Quick Estimation System for Earthquake Maps triggered by observation records (QuiQuake),”
http://qq.ghz.geogrid.org/QuakeMap/index.en.html [cited in 2009],
https://gbank.gsj.jp/QuiQuake/index.en.html [JGD2000 version, cited in 2013]
-  M. Matsuoka, N. Yamamoto, and K. Wakamatsu, “Web-based Quick estimation system of strong ground motion maps using observation records and Engineering Geomorphologic Classification Map,” Proc. 10th International Conference on Urban Earthquake Engineering, Center for Urban Earthquake Engineering, Tokyo Institute of Technology, CD-ROM, pp. 187-194, 2013.
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