Hundreds of tsunami stones stand along the coast of Japan, stark warnings and reminders of the devastating impact of the country’s all too frequent tidal waves. The oldest were erected more than 600 years ago; some have been washed away by ever more powerful waves.
Japan has borne the brunt of some of the worst tsunamis in history. In 1707, a tsunami caused by the Hōei earthquake killed more than 5,000 people. The Great Yaeyama Tsunami of 1771 killed 8,439 people on Ishigaki Island and 2,548 more on Miyako. In 1896, the Sanriku earthquake sent two tsunamis crashing into coastal settlements, destroying some 9,000 homes and killing at least 22,000. More recently, the Tōhoku earthquake and tsunami of 2011 left 15,894 dead, 6,156 injured, and 2,546 missing.
One particularly well-documented tsunami stone stands in the village of Aneyoshi on Japan’s northeastern coast. Aneyoshi had endured two devastating tsunamis, one in 1896 and another in 1933. The stone was placed shortly after the 1933 tsunami, a four-foot-high marker located just above the tsunami’s highest reach. It reads: “High dwellings are the peace and harmony of our descendants. Remember the calamity of the great tsunamis. Do not build any homes below this point.”
Clancy's comment: The devastation caused by a Tsunami is included in one of my books - Pa Joe's Place.