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Table 1 Historical tsunamis along the Sanriku Coast during AD 1611–2011

From: Historical and paleo-tsunami deposits during the last 4000 years and their correlations with historical tsunami events in Koyadori on the Sanriku Coast, northeastern Japan

Date Name Latitude [°N] Longitude [°E] Magnitude
Earthquakes in observed records (after 1896)
 11 March 2011 Tohoku-oki 38.1 142.86 9.0
 26 September 2003 Tokachi-oki 41.78 144.08 8.0
 16 May 1968 Tokachi-oki 40.73 143.58 7.9
 23 May 1960 Chile −38.17 −72.57 9.5
 4 March 1952 Tokachi-oki 41.8 144.13 8.2
 3 November 1936 Miyagiken-oki 38.26 142.07 7.5
 3 March 1933 Showa Sanriku 39.23 144.52 8.1
 1 November 1915 Miyagiken-oki 38.3 142.9 7.5
 5 August 1897 Miyagkeni-oki 38.3 143.3 7.7
 15 June 1896 Meiji Sanriku 39.5 144 8.2
Earthquakes in documented records (before 1896)
 23 August 1856 Ansei 41 142.3 7.7
 17 February 1793 Kansei 38.5 144.5 8.2
 29 January 1763 Horeki 41 142.5 7.7
 13 April 1677 Empo 41 143 7.9
 2 December 1611 Keicho 39 144 8.1
  1. Based on Utsu (2004). We selected major earthquakes generating tsunamis hitting the Sanriku Coast