Ancient warnings against Atomic Age risks

In the Japanese federal government's report to the International Atomic Energy Agency on the Fukushima Daiichi catastrophe dated June 7th, it is mentioned that:

"These areas [in northeast Japan] are rias type coastlines that have, historically, suffered significantly from giant tsunamis in the 15m range [almost 50 feet] such as the Meiji Sanriku Tsunami (1896) and the Showa Sanriku Tsunami (1933), the lesson of preparation against a 15m-class tsunami has been instructed...In the Aneyoshi area, Miyako City in Iwate Prefecture, there is a stone monument with the warning not to build houses in the area lower than that point as shown in Fig. III-1-17 (...[right] picture) ["Fig. III-1-17 Photos of a stone monument and tsunami invading area below the stone monument."] at the entrance (height 60 m) [nearly 200 feet] of the village, showing lessons learned from runups of the two historical tsunamis mentioned above. By observing this lesson, the area was able to avoid casualties this time even though the tsunami ran up (the actual runup height was 38.9 m) [nearly 130 feet] near the village as shown in the figure ([left] picture)."

Any attempt to claim that the 15 meter tsunami which struck Fukushima Daiichi nuclear power plant could not have been predicted because it was just too unthinkably large is directly contradicted by known Japanese history dating back 80 years, 115 years, even over 1,000 years.