1968 Tokachi earthquake

8.3 magnitude earthquake 1968 Tokachi earthquake 1968-05-16 00:49:02 821946 iscgem821946 1968 05 16 09:49:02 Japan 8.3 w y 26 km on 40.90 N 143.35 E Oblique-slip Japan 6 m on 7.9 w y ISC May 16 at 20:39 6Significant Earthquake Database https://www.ngdc.noaa.gov/hazel/view/hazards/earthquake/event-more-info/4438 National Geophysical Data Center / World Data Service (NGDC/WDS) National Geophysical Data Center, NOAA 10.7289/V5TD9V7K 19725- 47–52 killed 281–330 injured 1968年十勝沖地震による鉄道被害.jpg 1968年十勝沖地震の震度分布.png 250 The 1968 Tokachi earthquake (1968年十勝沖地震 Sen-kyūhyaku-rokujūhachi-nen Tokachi-oki Jishin) occurred on May 16 at 0:49 UTC (09:49 local time) in the area offshore of Aomori and Hokkaido. The magnitude of this earthquake was put at w y 8.3. The intensity of the earthquake reached shindo 5 in Aomori, Aomori and Hakodate, Hokkaido.http://www.hiroi.iii.u-tokyo.ac.jp/index-genzai_no_sigoto-tunami_joho-archives.pdf Tsunami forecast Archives 2012-04-09 2013-10-29 https://web.archive.org/web/20131029224634/http://www.hiroi.iii.u-tokyo.ac.jp/index-genzai_no_sigoto-tunami_joho-archives.pdf dead Geology This earthquake was located near the junction of the Kuril Trench and the Japan Trench. It was an interplate earthquake.http://www.aces.org.au/ACES-2002-workshop/PDF/page333-340.pdf 13 November 2003 Crustal Deformation Model in Northeast Japan Hisashi Suito Mikio Iizuka Kazuro Hirahara 2014-09-12 https://web.archive.org/web/20150301060337/http://aces.org.au/ACES-2002-workshop/PDF/page333-340.pdf 2015-03-01 dead The focal mechanism of this earthquake showed movement on a thrust fault with a considerable slip-strike component.Focal Mechanism of the Tokachi-Oki Earthquake of May 16, 1968: Contortion of the Lithosphere at a Junction of Two Trenches H. Kanamori Hiroo Kanamori 1971 Tectonophysics 12 1 1–13 10.1016/0040-1951(71)90063-1 1971Tectp..12....1K The sum of interplate seismic moment release by seismic and aseismic faulting in this earthquake was about 28×1020 N m. The 1960s was noted as one of the peak periods of interplate seismic moment release in the offshore Sanriku region."Space-time distribution of interplate moment release including slow earthquakes and the seismo-geodetic coupling in the Sanriku-oki region along the Japan trench" by I. Kawasaki, Y. Asai, and Y. Tamura Damage Heavy rain occurred due to a low pressure system in the days leading up to the earthquake and aggravated the damage. In Hokkaido, building damage was reported. A four-story RC building of Hakodate University collapsed.http://www.iitk.ac.in/nicee/wcee/article/1321.pdf 16 December 1999 DAMAGES TO BEAM-TO-COLUMN JOINT PANELS OF R/C BUILDINGS CAUSED BY THE 1995 HYOGO-KEN NANBU EARTHQUAKE AND THE ANALYSIS Masaya HIROSAWA Tomoaki AKIYAMA Tatsuya KONDO Jiandong ZHOU amp 2014-09-12 In Aomori Prefecture, there was damage to railroads and highways in more than 200 places caused by collapses of artificial embankments. In Hachinohe, there was damage to buildings, water pipes, and gas pipes. The three-story building of Hachinohe Technical College suffered severe damage."Geomorphological Accidents Caused by the Tokachi-oki Earthquake" by K. Nishimura, S. Segawa, H. Mizuno, H. Hotta, O. Miura, T. Tamura, and T. Akagiri The communication between Honshu and Hokkaido was cut off.http://danso.env.nagoya-u.ac.jp/jsafr/documents/AFR028_095_106.pdf 19 September 2008 Earthquake and lifeline damage Junji Kiyono 2014-09-12 https://web.archive.org/web/20130612072739/http://danso.env.nagoya-u.ac.jp/jsafr/documents/AFR028_095_106.pdf 2013-06-12 dead Tsunami A tsunami was triggered by the earthquake,http://www.bousai.pref.aomori.jp/jisinsouran/tokachi/1_jisin_target.htm 十勝沖地震 地震の概要 Bousai.pref.aomori.jp 2014-09-12 https://web.archive.org/web/20150923194042/http://www.bousai.pref.aomori.jp/jisinsouran/tokachi/1_jisin_target.htm 2015-09-23 dead with a maximum height of about 6 m on.http://www.jishin.go.jp/main/chousa/09mar_sanriku/sanriku_boso_2_hyoka.pdf 22 August 2008 三陸沖から房総沖にかけての地震活動の長期評価の一部改訂について （平成21年3月9日公表） 地震調査研究推進本部 地震調査委員会 2014-09-12 An 11 cm in us mid high tsunami was recorded in Tahiti. November 2014 In Japan, the tsunami caused flooding and damage to aquaculture. See also List of earthquakes in 1968 List of earthquakes in Japan References PAGER-CAT Earthquake Catalog https://earthquake.usgs.gov/static/lfs/data/pager/catalogs/ September 4, 2009 United States Geological Survey Version 2008_06.1 Further reading Fault extent of the largest aftershock of the 1968 Tokachi-Oki, Japan, earthquake and an interpretation of the normal faulting focal mechanism Earth, Planets and Space 63 12 1213–1216 2012 Izutani Y. 10.5047/eps.2011.07.018 free https://soar-ir.repo.nii.ac.jp/record/12435/files/2011_Izutani_EPS.pdf External links 821946 Tokachi Category:1968 in Japan Category:1960s tsunamis Category:May 1968 in Asia Category:Earthquakes of the Shōwa era Category:Megathrust earthquakes in Japan Category:1968 disasters in Japan