Back زلزال سانريكو 1896 Arabic Meydzi Sanriku sunami və zəlzələsi Azerbaijani Meiji-Sanriku-Erdbeben 1896 German Terremoto de Sanriku de 1896 Spanish Meiji-Sanriku maavärin 1896 Estonian Meiji-Sanrikun maanjäristys Finnish Séisme de 1896 à Sanriku French 明治三陸地震 Japanese 메이지 산리쿠 지진 Korean Gempa bumi Meiji-Sanriku 1896 Malay

1896 Sanriku earthquake

Not to be confused with 1896 Rikuu earthquake.
1896 Sanriku earthquake
Devastation caused by the tsunami at Sanriku.
1896 Sanriku earthquake is located in Japan
1896 Sanriku earthquake
Local dateJune 15, 1896 (1896-06-15)
Local time19:32:30 JST (UTC+09:00)
Magnitude8.5 Mw, 7.2 Ms[1][2]
DepthShallow
Epicenter39°30′N 144°00′E / 39.5°N 144.0°E / 39.5; 144.0
TypeMegathrust
Areas affectedEmpire of Japan, United States
Total damageTsunami
TsunamiUp to 38.2 m (125 ft)
in Ryori, Kesen, Iwate, Tōhoku
Casualties22,066 people dead or missing[3]

The 1896 Sanriku earthquake (明治三陸地震, Meiji Sanriku Jishin) was one of the most destructive seismic events in Japanese history.[3] The 8.5 magnitude earthquake occurred at 19:32 (local time) on June 15, 1896, approximately 166 kilometres (103 mi) off the coast of Iwate Prefecture, Honshu. It resulted in two tsunami waves which destroyed about 9,000 homes and caused at least 22,000 deaths.[4] The waves reached a then-record height of 38.2 metres (125 ft); this would remain the highest on record until waves from the 2011 Tōhoku earthquake exceeded that height by more than 2 metres (6 ft 7 in).[5]

From the tsunami records the estimated tsunami's magnitude is (Mt = 8.2),[6] much greater than expected for the seismic magnitude estimated from the observed seismic intensity (Ms=7.2).[2] This earthquake is now regarded as being part of a distinct class of seismic events, the tsunami earthquake.[7]

  1. ^ Nishimura, T.; Miura S.; Tachibana K.; Hashimoto K.; Sato T.; Hori S.; Murakami E.; Kono T.; Nid K.; Mishina M.; Hirasawa T. & Miyazaki S. (2000). "Distribution of seismic coupling on the subducting plate boundary in northeastern Japan inferred from GPS observations". Tectonophysics. 323 (3–4): 217–238. Bibcode:2000Tectp.323..217N. doi:10.1016/S0040-1951(00)00108-6.
  2. ^ a b Cite error: The named reference Tanioka was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Nakao was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference USGS was invoked but never defined (see the help page).
  5. ^ "March 11th tsunami a record 40.5 metres high NHK". .nhk.or.jp. 13 August 2011. Archived from the original on 28 July 2011. Retrieved 15 June 2018.
  6. ^ Abe, K. (1981). "Physical size of tsunamigenic earthquakes of the northwestern Pacific". Phys. Earth Planet. Inter. 27 (3): 194–205. Bibcode:1981PEPI...27..194A. doi:10.1016/0031-9201(81)90016-9.
  7. ^ Kanamori, H. (1972). "Mechanism of tsunami earthquakes" (PDF). Phys. Earth Planet. Inter. 6 (5): 346–359. Bibcode:1972PEPI....6..346K. doi:10.1016/0031-9201(72)90058-1. Archived from the original (PDF) on 2011-06-14.

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