Damage to Fukushima main shrine "is it a factor that the water of the tributaries lost its destination and went back?" Oct. 15 20:28
Professor Kiyoshi Kawagoe of the Graduate School of Symbiotic Systems Science and Engineering, Fukushima University, who is studying the mechanism of natural disasters, explained the causes of major damage in Motomiya City, Fukushima Prefecture. “It is close to the confluence. When the Abukuma River increases, it is likely that a“ backwater phenomenon ”occurs where the water of the tributaries loses its place of flow and backflows.”
On top of that, he said, “There was a possibility that the embankment was eroded by the water that had lost its place in the Adachi-Tara River, and it was destroyed.”
In addition, damage has occurred in the center of Motomiya City this time, but when water flows between buildings in the city area, there are cases where it flows in a complicated manner while increasing momentum, `` people who were on the spot For example, there was a case where water flowed from an unexpected direction, and water was likely to gain momentum in paved areas, and even when trying to evacuate, water pressure did not open the door. I can think of what I was doing. "