[ad_1]
The revised version of the Mount Fuji hazard map released on the 26th revealed that a lava flow could reach seven municipalities in Kanagawa prefecture if the largest eruption occurred. Each city and town calmly accepts that there is a grace period of one day or more before arriving there, and agrees that “I will explain it carefully so as not to give anxiety to the neighbors”, while urgently thinking about formulating a prevention plan disaster relief and an evacuation plan proved it. (Shota Shimura, Seio Nishioka, Reio Yoneda)
As for the impact on the prefecture at the time of the Mount Fuji eruption, it was noted that volcanic ash may accumulate, but it was said that the lava flow would not arrive. The revised hazard map revealed that this time it doubles the amount of lava eruption from the largest “Jogan eruption” (864-866) in the last 5600 years, and when the eruption occurs on the east side of the summit of the mountain, it will be in the prefecture. Lava flow can come.
The first lava flow in the prefecture is said to reach Yamakita city one day and nine hours later. Minamiashigara City will be 3 days later, Kaisei City 5 days later, Matsuda City 6 days later, Midori Ward Sagamihara City 9 days later, Odawara City 17 days later, and Oimachi 30 days later.
In addition, the “snowmelt lahar” that occurs when snow melted by the pyroclastic flow carries dirt and sand flowing into the Sakawa River passing through Yamakita City and Matsuda City, and there is a risk that the level the water rises and the water will become muddy. According to the prefecture, damage such as the death of river creatures and the overflowing of rivers is possible.
Nobunori Kasai, a disaster prevention and security expert with the Kaisei City Disaster Prevention and Security Division, who said lava flows could reach the entire city, said: “I was surprised, but I want to think about how to escape lava and how to escape and deal with it in silence. ” Since there is a test calculation that the lava flow will not come, he said: “We will carefully explain to residents the eruption and damage patterns related to the city.”
Hiroyuki Sudo, deputy director of the Sagamihara City Crisis Management Division, said: “If you only assume the ashfall, you can draw attention as refraining from going out, but the lava flows must be evacuated. widespread and long-term. We have to think of a new regional disaster prevention plan. “
Yoshinori Yajima, Head of Odawara City Regional Disaster Prevention Section, said: “We will consider holding an information session for residents on volcanic measures. We will comprehensively consider the prevention of volcanic disasters, including secondary disasters such as ejections that accumulate in rivers and floods, and take volcanic measures. We will raise awareness by incorporating training for disaster prevention. “
Governor Yuji Kuroiwa said: “I take it as a worst case assumption. It is impossible to completely prevent lava flow, so I will make a new plan on how to save my life. Using my experience in disaster prevention measures in Hakone Volcano We also conducted evacuation drills. ”
