About 430 years ago namely in 1586 ( ※ ), a great earthquake called Tenshou-earthquake occurred in Japan.
※ About 430 light years ;
the distance between Betelgeuse and the earth before modification in 2008
It's known that a missionary named Luis.Frois who stayed in Japan at that time also experienced the earthquake.
And, it's often told that a tsunami around Wakasa-bay ( on the coast of the Japan Sea ) reported by L.Frois was actually a phenomenon originated from a landslide near Biwa-lake.
