The 1293 Kamakura earthquake in Japan occurred at about 06:00 local time on 27 May 1293. It had an estimated

magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...

of 7.1–7.5 and triggered a

tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater exp ...

. The estimated death toll was 23,024. It occurred during the

Kamakura period The is a period of Japanese history that marks the governance by the Kamakura shogunate, officially established in 1192 in Kamakura by the first ''shōgun'' Minamoto no Yoritomo after the conclusion of the Genpei War, which saw the struggle bet ...

, and the city of Kamakura was seriously damaged. In the confusion following the quake,

Hōjō Sadatoki was the ninth ''shikken'' (regent) of the Kamakura shogunate (reigned 1284–1301), and '' tokusō'' (''de facto'' ruler of Japan) from his appointment as regent until his death. Born to the regent Tokimune and his wife from the Adachi family ...

, the

Shikken The was a titular post held by a member of the Hōjō clan, officially a regent of the shogunate, from 1199 to 1333, during the Kamakura period, and so he was head of the ''bakufu'' (shogunate). It was part of the era referred to as . During rou ...

of the

Kamakura shogunate The was the feudal military government of Japan during the Kamakura period from 1185 to 1333. Nussbaum, Louis-Frédéric. (2005)"''Kamakura-jidai''"in ''Japan Encyclopedia'', p. 459. The Kamakura shogunate was established by Minamoto no ...

, carried out a purge against his subordinate

Taira no Yoritsuna The Taira was one of the four most important clans that dominated Japanese politics during the Heian, Kamakura and Muromachi Periods of Japanese history – the others being the Fujiwara, the Tachibana, and the Minamoto. The clan is divided ...

. In what is referred to as the Heizen Gate Incident, Yoritsuna and 90 of his followers were killed. It has been suggested that the reference to a large tsunami may be incorrect, although a

tsunami deposit A tsunami deposit (the term tsunamiite is also sometimes used) is a sedimentary unit deposited as the result of a tsunami. Such deposits may be left onshore during the inundation phase or offshore during the 'backwash' phase. Such deposits are us ...

has been found that is consistent with this age.

References

1293 Kamakura earthquake The 1293 Kamakura earthquake in Japan occurred at about 06:00 local time on 27 May 1293. It had an estimated magnitude of 7.1–7.5 and triggered a tsunami. The estimated death toll was 23,024. It occurred during the Kamakura period, and th ...

13th-century earthquakes 1290s in Japan 1293 in Asia Kamakura, Kanagawa Tsunamis in Japan {{Asia-earthquake-stub

See also

References