The 1855 Ansei Edo earthquake, also known as the Great Ansei Earthquake, was one of the major disasters of the late-Edo period. The earthquake occurred at 22:00 local time on 11 November. It had an epicenter close to Edo (now Tokyo), causing considerable damage in the Kanto region from the shaking and subsequent fires, with a death toll of about 7,000 people. The earthquake also triggered a tsunami. Within days, a new type of color woodblock print known as namazu-e (lit. 'catfish pictures') became popular among the residents of the shaken city. These prints featured depictions of mythical giant catfish (namazu) who, according to popular legend, caused earthquakes and related tsunami by thrashing about in their underground lairs. In addition to providing humor and social commentary, many prints claimed to offer protection as talismans from future earthquakes. The popularity of namazu-e exploded, and as many as four hundred different types became available. The phenomenon ended two mont