1982 Urakawa earthquake

Earthquake in Japan 1982 Urakawa earthquake 1982 03 21 11:32 1982-03-21 02:32:07 昭和57年浦河沖地震による浦河町福祉センターの天井の落下.jpg Japan Hokkaido#Japan usp0001k81 602579 6.7–6.8 s yMurai Akiyama Katsumata Takanami 20036.9 w y7.1 j y 44.0 km on Yes, largest w 5.9Suetsugu Nakanishi 1988 Yes 42.158 N 142.361 E Japan 1.3 m ft on 6+X 167 injured US$1 million The 1982 Urakawa earthquake (ja 浦河沖地震) was a w y 6.9 earthquake that struck off the coast of Urakawa, Japan, on 11:32 (JST), March 21, 1982.Iwasaki Hirata Suyehiro Kanazawa 1983 The epicenter was 42.1 N 142.6 E inline, title. The earthquake was the largest earthquake in the history of the region. The earthquake caused 167 injuries and damage in Tomakomai and Sapporo. Tectonic setting Hokkaido is situated on the Okhotsk Plate in between two main zones of seismicity. To the west, there is a convergent plate boundary with the Amurian Plate.Zhou Huang Umino Hasegawa 2011 To the east, there exists a subduction zone where the Pacific Plate subducts underneath the Okhotsk. This is accommodated by slip along the Kuril-Kamchatka Trench and the Japan Trench.Seno Sakurai Stein 1996 This earthquake struck as the result of thrust faulting in an area of compression known as the Hidaka Collision Zone.Arita Ikawa Ito Yamamoto 1998 The same tectonic process, caused by the collision between the Eurasian Plate and the Kuril fore-arc uplifts the Hidaka Mountains.Arita Ikawa Ito Yamamoto 1998 Earthquake At 2:32 UTC or 11:32 local time on 21 March, a large earthquake struck off the shore of southern Hokkaido. The w y 6.9 earthquake caused shaking that reached a maximum Japan Meteorological Agency seismic intensity scale Shindo of 6- and a Modified Mercalli intensity (MMI) of X (Extreme). The event struck at a depth of 44.0 km on, and ruptured along the Hidaka Collision Zone.Arita Ikawa Ito Yamamoto 1998 Inferred rupture dimensions were 12 km on by 22 km on with an average slip of 2.5 meters on.Suetsugu Nakanishi 1988 Aftershocks covered an area of 35 km on by 25 km on.Iwasaki Hirata Suyehiro Kanazawa 1983 Tsunami + Teletsunami observations Location Recorded height (m) Urakawa, Japan 1.3 Ayukawa, Japan 0.6 Hachinohe, Japan 0.6 Shoya, Japan 0.3 Kuji, Japan 0.3 Kamaishi, Japan 0.2 Kushiro, Japan 0.2 Tsunami from the earthquake was observed around Hokkaido, with varying run-up heights. Urakawa had the highest run-ups with waves reaching up to 1.3 meters on high and going up to 3 meters on inland. The observations at Hachinohe and Hiroo were much higher than models predicted, however this may be due to the models not taking into account more local topography that could influence wave heights.Suetsugu Nakanishi 1988 References M 6.7 - 19 km S of Shizunai-furukawach?, Japan https://earthquake.usgs.gov/earthquakes/eventpage/usp0001k81/technical earthquake.usgs.gov United States Geological Survey 23 May 2022 Event:HOKKAIDO, JAPAN https://www.ngdc.noaa.gov/hazel/view/hazards/earthquake/event-more-info/4940 ngdc.noaa.gov Lander James F. Whiteside Lowell S. Lockridge Patricia A. TWO DECADES OF GLOBAL TSUNAMIS 1982-2002 https://library.lanl.gov/tsunami/211/decades.pdf NOAA 30 October 2022 GEM 602579 1982年浦河沖地震港湾被害報告 https://www.pari.go.jp/report_search/detail.php?id=198312047201 live 2021-06-29 www.pari.go.jp https://web.archive.org/web/20210602212353/https://www.pari.go.jp/report_search/detail.php?id=198312047201 2021-06-02 20世紀後半（1951-）｜日本付近のおもな被害地震年代表｜公益社団法人 日本地震学会 https://www.zisin.jp/publications/document05_06.html 2021-06-29 www.zisin.jp 2021-05-24 https://web.archive.org/web/20210524161451/https://www.zisin.jp/publications/document05_06.html dead The Earthquake off Urakawa (M 7.1), March 21, 1982 http://cais.gsi.go.jp/YOCHIREN/report/kaihou28/01_03.pdf 3 December 2018 Hokkaido University ja 浦河沖地震（1982年3月21日） ｜ 災害カレンダー https://typhoon.yahoo.co.jp/weather/calendar/182/ 2021-06-29 Yahoo!天気・災害 ja 気象庁 気象庁が名称を定めた気象・地震・火山現象一覧 https://www.jma.go.jp/jma/kishou/know/meishou/meishou_ichiran.html 2021-06-29 www.jma.go.jp デジタル大辞泉 浦河沖地震とは https://kotobank.jp/word/%E6%B5%A6%E6%B2%B3%E6%B2%96%E5%9C%B0%E9%9C%87-441770 2021-06-29 コトバンク ja Sources Arita Kazunori Ikawa Takashi Ito Tanio Yamamoto Akihiko Saito Matsuhiko Nisihida Yasunori Satoh Hideyuki Kimura Gaku Watanabe Teruo Ikawa Takeshi Kurodo Toru Crustal structure and tectonics of the Hidaka Collision Zone, Hokkaido (Japan), revealed by vibroseis seismic reflection and gravity surveys Tectonophysics 1998 290 3–4 197–210 10.1016/S0040-1951(98)00018-3 1998Tectp.290..197A https://www.sciencedirect.com/science/article/abs/pii/S0040195198000183 30 October 2022 subscription Iwasaki Takaya Hirata Naoshi Suyehiro Kiyoshi Kanazawa Toshihiko Urabe Taku Moriya Takeo Shimamura Hideki Aftershock distribution of the 1982 Urakawa-Oki earthquake determined by ocean bottom seismographic and land observations Journal of Physics of the Earth 1983 31 5 299–328 10.4294/jpe1952.31.299 129929201 https://www.jstage.jst.go.jp/article/jpe1952/31/5/31_5_299/_pdf 30 October 2022 free Murai Yoshio Akiyama Satoshi Katsumata Kei Takanami Tetsuo Yamashina Tadashi Watanabe Tomoki Cho Ikuo Tanaka Masayuki Kuwano Asako Wada Naoto Shimamura Hideki Furuya Itsuo Zhao Dapeng Sanda Ryohei Delamination structure imaged in the source area of the 1982 Urakawa-oki earthquake Geophysical Research Letters 14 May 2003 30 9 1490 10.1029/2002GL016459 2003GeoRL..30.1490M 2115/17236 53499509 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2002GL016459 30 October 2022 0094-8276 free 10.1029/96JB00532 Can the Okhotsk Plate be discriminated from the North American plate? 1996 Seno Tetsuzo Sakurai Taro Stein Seth Journal of Geophysical Research: Solid Earth 101 B5 11305–11315 1996JGR...10111305S Suetsugu Daisuke Nakanishi Ichiro Re-examination of fault model for the 1982 Urakawa-oki earthquake by analyses of seismic, geodetic, and Tsunami data Journal of Physics of the Earth 1988 36 2 53–67 10.4294/jpe1952.36.53 https://www.jstage.jst.go.jp/article/jpe1952/36/2/36_2_53/_pdf/-char/en 30 October 2022 free Zhou Dapeng Huang Zhouchuan Umino Norihito Hasegawa Akira Yoshida Takeyoshi Seismic imaging of the Amur–Okhotsk plate boundary zone in the Japan Sea Physics of the Earth and Planetary Interiors September 2011 188 1–2 82–95 10.1016/j.pepi.2011.06.013 2011PEPI..188...82Z https://www.sciencedirect.com/science/article/abs/pii/S003192011100135X 30 October 2022 subscription External links 602579 1982年浦河沖地震港湾被害報告 https://web.archive.org/web/20210603050525/https://www.pari.go.jp/search-pdf/no0472.pdf 2021-06-03 - 港湾空港技術研究所 1982年3月21日浦河沖地震 - 北海道大学 (地震予知連絡会会報 第28巻) Category:March 1982 in Japan Category:1982 in Japan Category:Earthquakes in Hokkaido Category:1982 earthquakes Category:1982 disasters in Japan