A survey by the prefecture and the city revealed that an estimated 20,000 cubic meters of landslides occurred in Tsuruoka City, Yamagata Prefecture on the 31st of last month.
On the 5th, the prefecture and city plan to conduct an emergency field survey with experts to confirm whether there is a risk of a secondary disaster.
A landslide that occurred in Nishime, Tsuruoka City, Yamagata Prefecture on December 31 last month killed two people and destroyed about 10 buildings.
Along with this, Tsuruoka City has issued evacuation orders to 22 people in 8 households in the surrounding area, and residents are evacuating to hotels.
The earth and sand have collapsed from 20 meters to 30 meters in height and about 100 meters in width, but according to a survey by the city and the prefecture, the collapsed earth and sand are estimated to be about 20,000 cubic meters.
In addition, the collapsed part was mixed with reddish brown pebbles and became clay-like, and it is believed that weathering was progressing.
In addition, the original slope of the site was about 30 degrees, but after the landslide it became steeper, about 40 to 45 degrees.
On the afternoon of the 5th, officials from the prefectural and city governments conducted an emergency field survey at the site together with experts to confirm whether there was a risk of a secondary disaster occurring, and whether the evacuation order should be continued or lifted. We are considering how to deal with