If a once-in-1,000-years earthquake occurs, the area of Fukushima Prefecture expected to be flooded by subsequent tsunami could be 1.3 times larger than at the time of the March 2011 disaster, the prefectural government said Wednesday.
If such a powerful earthquake takes place, tsunami of up to 22.4 meters high could hit the coast of Fukushima, and some 14,300 hectares of land in the prefecture could be inundated, according to a prefectural government estimate.
The prefectural government plans to call for 10 coastal municipalities to create hazard maps and review evacuation routes by the end of fiscal 2020.
The estimate assumes that such an earthquake will take place at high tide. The 2011 disaster occurred at low tide.