Typhoon No. 19 flooded buildings More than half of them were damaged on the 1st floor
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Experts found that more than half of the people who died in flooded buildings due to typhoon No. 19 were damaged on the first floor of the two-story building, and many were elderly. . In some cases, the inundation depth was about 1 centimeter and 20 centimeters, and the experts said, “Even if the inundation was relatively shallow, it might even be difficult to escape to the second floor after the inundation began.” Analyzing.
In the heavy rain of Typhoon No. 19 in October, 21 people died due to the flooding of the building.
As a result of a survey by Professor Yasuo Niwabe of Tokyo University of Science who is familiar with river disasters, more than half of 12 people were in two-story houses and apartments, but the damage was on the first floor.
The depth of inundation in the room is 75% less than 2 meters below the floor, a shallow case conspicuously compared to the area that was severely damaged by the heavy rain in western Japan last year. There was also a case.
In addition to the fact that more than 70% of the professors were elderly, there were many people who were unable to perform "vertical evacuation" to evacuate to the second floor by blocking their tatami mats and furniture from rising even when the water was relatively shallow. I think that.
Furthermore, as a result of a simulation of the flooding of the Adachi Tara River flowing through Motomiya City, Fukushima Prefecture, the inundation depth reached 1 meter or more in just one and a half hours in an area where there were many deaths. I think that hindered.
Prof. Niwabe said, “It is very difficult to evacuate after the inundation has started. If a disaster is anticipated at night, early evacuation is important, such as going to bed on the second floor or higher in advance.” Pointed out.