1968 Hyūga-nada earthquake

Earthquake in Hyūga-nada 1968 Hyūga-nada earthquake 1968-04-01 00:42:07 823387 iscgem823387 1968 04 01 09:42:07 Japan Kyushu#Japan 7.5 w y 30 km 32.45 132.27 region:JP_type:event inline,title Japan Yes 5-–5+7 1 dead, 22 injured The 1968 Hyūga-nada earthquake (Japanese: 1968年日向灘地震) occurred on April 1 at 09:42 local time 00:42 UTC. The earthquake had a magnitude of w y 7.5, and the epicenter was located in Hyūga-nada Sea, off the islands of Kyushu and Shikoku, Japan. The magnitude of this earthquake was also given as jma y 7.5.Partitioning between seismogenic and aseismic slip as highlighted from slow slip events in Hyuga-nada, Japan Geophysical Research Letters 30 2 1087 2003 Yagi Yuji Kikuchi Masayuki 2003GeoRL..30.1087Y 10.1029/2002GL015664 free A tsunami was observed.https://walrus.wr.usgs.gov/reports/reprints/Geist_JGR_107.pdf Complex earthquake rupture and local tsunamis Journal of Geophysical Research 107 B5 2086 2002 Geist Eric L 2002JGRB..107.2086G 10.1029/2000JB000139 free One person was killed, and 22 people were reported injured.Significant Earthquake Database https://www.ngdc.noaa.gov/hazel/view/hazards/earthquake/event-more-info/4432 National Geophysical Data Center / World Data Service (NGDC/WDS) National Geophysical Data Center, NOAA 10.7289/V5TD9V7K 1972 Data Set高知県の地震活動の特徴 http://www.jishin.go.jp/main/yosokuchizu/chugoku-shikoku/p39_kochi.htm live Headquarters for Earthquake Research Promotion https://web.archive.org/web/20110323105535/http://www.jishin.go.jp/main/yosokuchizu/chugoku-shikoku/p39_kochi.htm 2011-03-23 The intensity reached shindo 5 in Miyazaki and Kōchi. Description This was an interplate earthquake between the Eurasian plate and the Philippine Sea plate. In this region, the Philippine Sea plate is subducting beneath the Eurasian plate. The subduction interface around this region passes southwestwards from the Nankai megathrust to the Ryukyu Trench just south of Kyusyu.Asano Y. Obara K. Matsuzawa T. Hirose H. Ito Y. 2015 Possible shallow slow slip events in Hyuga-nada, Nankai subduction zone, inferred from migration of very low frequency earthquakes Geophysical Research Letters 42 2 331–338 10.1002/2014GL062165 2015GeoRL..42..331A 130121891 free This earthquake is the strongest event recorded in the Hyūga-nada Sea region. The maximum slip was estimated to be 4 m.Yagi Yuji Kikuchi Masayuki Yoshida Shingo Yamanaka Yoshiko Source Process of the Hyuga-nada Earthquake of April 1, 1968 (MJMA 7.5), and its Relationship to the Subsequent Seismicity Zisin 1998 51 1 139–148 10.4294/zisin1948.51.1_139 1588209 free It was estimated that, in the Hyūga-nada Sea region, earthquakes with magnitudes about 7.6 occur with a period of about 200 years, while earthquakes with magnitudes about 7.1 occur with a period of about 20 to 27 years.http://www.jishin.go.jp/main/yosokuchizu/kaiko/k27_hyuganada.htm 日向灘 Headquarters for Earthquake Research Promotion It has been pointed out that there is a tendency of occurrence of inland earthquakes in Kyushu before and after large interplate earthquakes in the Hyūga-nada Sea region.http://www.geog.or.jp/journal/back/pdf111-2/p185-191.pdf Archived copy 2011-04-02 https://web.archive.org/web/20110720083625/http://www.geog.or.jp/journal/back/pdf111-2/p185-191.pdf 2011-07-20 dead See also 1662 Hyūga-nada earthquake 1941 Hyūga-nada earthquake 2024 Hyūga-nada earthquake List of earthquakes in 1968 List of earthquakes in Japan References ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009) http://www.isc.ac.uk/iscgem/index.php ISC 19 January 2015 International Seismological Centre Version 2.0 External links 823387 Hyuga-nada Hyuga-nada Category:1960s tsunamis Category:April 1968 in Asia Category:Earthquakes of the Shōwa era Category:1968 disasters in Japan