factor in the change of era names. 1854 (Ansei 1): The Ansei-Tōkai Quake (安政東海地震, Ansei Tōkai Jishin) was an 8.4 magnitude earthquake which struck on December...

(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...

2009-11-13. Kawade Shobō Shinsha Editorial Team (eds.). "Ansei Daijishin" (安政大地震, "Great Earthquakes of Ansei"). Ō-Edo Rekishi Hyakka (大江戸歴史百科, "Historical...

The Tōkai earthquakes (Japanese: 東海地震) are major earthquakes that have occurred regularly with a return period of 100 to 150 years in the Tōkai region...