Ansei great earthquakes
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The Ansei great earthquakes (安政の大地震, Ansei no Dai Jishin) were a series of major earthquakes that struck Japan during the Ansei era (1854–1860):
- The Ansei Tōkai quake (安政東海地震, Ansei Tōkai Jishin) was an 8.4 magnitude earthquake which struck on December 23, 1854. The epicenter ranged from Suruga Bay to the deep ocean, and struck primarily in the Tōkai region, but destroyed houses as far away as in Edo. The subsequent tsunami caused damage along the entire coast from the Bōsō Peninsula in modern-day Chiba prefecture to Tosa province (modern-day Kōchi Prefecture)[1]
- The Ansei Nankai quake (安政南海地震, Ansei Nankai Jishin) was an 8.4 magnitude earthquake which struck on December 24, 1854. Over 10,000 people from the Tōkai region down to Kyushu were killed.[1]
- The Hōyo Strait earthquake (豊予海峡地震, Hōyo Kaikyō Jishin) was an M7.4 intra-plate earthquake in Hōyo Strait affecting Kyushu and Shikoku on December 26, 1854. It affected nearby area more than the two megathrust earthquake that happened in the previous few days.[2][3][4]
- The Ansei Edo quake (安政江戸地震, Ansei Edo Jishin) was a Ms 7.0[5] earthquake which struck Edo (modern-day Tokyo) on November 11, 1855. ~120 earthquakes and tremors in total were felt in Edo in 1854–55. The great earthquake struck after 10 p.m.; roughly 30 aftershocks continued until dawn. The epicenter was near the mouth of the Arakawa River. Records from the time indicate 6,641 deaths inside the city, and 2,759 injuries; much of the city was destroyed by fire, leading many people to stay in rural inns. Aftershocks continued for ~20.[1] This quake was a particularly destructive deep thrust quake caused by a giant slab of rock stuck between the Philippine Sea plate and the Pacific plate.
The earthquakes were blamed on a giant catfish (Namazu) thrashing about.[by whom?] Ukiyo-e prints depicting namazu became very popular around this time.
Other notable quakes
[edit]1854 Iga-Ueno earthquake, one which registered 7.4 on the Richter scale and struck the Kansai region.[6]
An 1856 earthquake off Hachinohe coast was estimated to be a megathrust earthquake with Magnitude 7–8, with tsunami recorded, however damage was relatively few.[7]
The 1858 Hietsu earthquake struck Hida Province (modern-day Gifu Prefecture) on April 9, 1858.[8]
See also
[edit]Notes
[edit]- ^ a b c _____. (2007). "Great Earthquakes of Ansei" (安政大地震, Ansei Daijishin) in Historical Encyclopedia of Great Edo (大江戸歴史百科, Ō-Edo Rekishi Hyakka), p. 253.
- ^ 宇佐美龍夫 『最新版 日本被害地震総覧』 東京大学出版会、2003年
- ^ 安芸灘～伊予灘～豊後水道のプレート内地震 地震調査研究推進本部
- ^ 1854年12月26日の地震の震度分布（宇佐美,2003）
- ^ "Significant Earthquake". National Geophysical Data Center. Retrieved 2020-06-09.
- ^ Kano, Yasuyuki (2018). "Location of localized liquefaction in Fushimi during the 1854 Iga-Ueno earthquake". Earthquake Research Institute, The University of Tokyo. Archived from the original on 2018-11-24. Retrieved June 9, 2020.
- ^ "19世紀後半、黒船、地震、台風、疫病などの災禍をくぐり抜け、明治維新に向かう(福和伸夫)". Yahooニュース. 2020-08-24. Retrieved 2020-12-03.
- ^ Komatsubara, Taku (May 28, 2015). "Epicenter of the Ansei Hietsu Earthquake in 1858 inferred from ratio of dead persons in each village". Confit. Archived from the original on 2020-06-09. Retrieved June 9, 2020.
References
[edit]- 河出書房新社編集部 (August 2007). 大江戸歴史百科. 河出書房新社. ISBN 978-4-309-22467-1.
- Joshua Hammer (2006). Yokohama Burning: The Deadly 1923 Earthquake And Fire That Helped Forge the Path to World War II. Free Press. ISBN 978-0-7432-6465-5.
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