In 1954, five ferries, including the Tōya Maru, sank in the Tsugaru Strait during a typhoon, killing 1,430 passengers.
1954 viisi lauttaa, mukaan lukien Tōya Maru upposi Tsugarunsalmessa taifuunin aikana, jolloin 1 430 matkustajaa menehtyi.