It is assumed that the Nankai Trough Megathrust Earthquake will cause a tsunami to reach Osaka and Umeda.

It is possible that many people will evacuate to buildings from the Umeda underground mall, but when NHK investigated about 50 buildings connected to the underground mall, half of them were not expected to accept evacuees. I was.

According to the Osaka prefectural government's assumptions, if a Nankai Trough megathrust earthquake occurs, it is assumed that a tsunami of up to 2 meters in height will reach Umeda in the center of Osaka.



The city of Osaka is urging people to evacuate to the outside of the inundated area or evacuate to the third floor or higher of a sturdy building. is limited to 11 buildings.



This time, NHK conducted a questionnaire on the acceptance of evacuees in 51 buildings that are connected to the underground mall in Umeda, apart from the "Tsunami Evacuation Building", and that Osaka City has announced as "Connecting Buildings".



As a result, it was found that out of the 43 buildings that responded, 23 buildings, which is about half, were not expected to accept evacuees.



When asked how they would respond if there were evacuees in a building that had not been expected, ▽ 9 buildings responded that they would "


accept evacuated people to the extent possible", while


▽ "It has been decided at this point. There were 8 buildings that said "no",


and 3 buildings that said "refuse entry" or "physically prevent entry".



From these buildings, there were voices such as "I'm worried that if evacuees concentrate, things may get out of control," and "I can't handle it because of the limited stockpile and the number of employees."



On the other hand, of the 20 buildings that responded that they expected to accept evacuees, 13 of them


had calculated the number of people they could accept in advance,


and had manuals on how to accept them. There were only 3 buildings,


and only 1 building was undergoing acceptance training.



Eisuke Ikuta, a professor at Osaka Public University who specializes in evacuation behavior in the event of a disaster, said, ``The fact that only half of the buildings have plans to accept them is a disturbing result in Umeda, where many people may flee. measures should be taken by presenting ideas on compensation, stockpiles, and periods that the building side is concerned about."

There is also anxiety about the building that is preparing to receive

It is said that the building, which is preparing to accept evacuations, also feels uneasy about how to respond in an emergency.



Of these, the Osaka Institute of Technology Umeda Campus building has stockpiled food and water for five days, assuming evacuation of 750 people, including university officials.



It is said that the number of people that can be accommodated varies greatly depending on whether it is just an emergency temporary evacuation or a long-term evacuation.



Mikio Ukawa, head of the office in charge of disaster prevention at the Faculty of Robotics and Design Engineering, Osaka Institute of Technology, said, "When an earthquake hits, it depends on how many people are inside the building. We have a limited amount of stockpiles on the 4th, so we have to think about opening up the research area depending on the number of people we accept, but we have intellectual property such as research materials, so there are concerns about management. There is also,” he says.



On top of that, we are asking the government to prepare stockpiles and support the creation of a system to prevent isolation, as well as to indicate a guideline for the period of acceptance of evacuees.