It has been 90 years for the reason that Showa Sanriku Tsunami occurred in 1933, and native individuals mourned the victims on the seawall within the Taro district of Miyako City, Iwate Prefecture, which suffered nice harm.
Source
More than 3,000 lifeless and unknown “Showa Sanriku tsunami” 90 years mourning victims in Iwate | NHK
