Geosite List Home Geosite The Tsunami Attain Mark Post in Fukuro The Tsunami Attain Mark Post in Fukuro The tsunami of the 1946 earthquake had reached to this point. You can see how high the tsunami was by checking the mark (7.9m) on the face of the mountain. Map The Tsunami Attain Mark Post in Fukuro 33.4760898,135.7754669,14 See in the map app