Hello, everyone
This is Enta.
After getting drenched by Nozzleman, my whole body is aching all over...
My lower back really hurts, lol.
I realized that my body isn't at an age where it can handle that kind of strain anymore!
Let's take it easy.
But that's beside the point.
It seems like an unusual typhoon is coming—I can’t help but wonder if the Tokai region will be okay.
In fact, there are things you learn when you’re working on disaster recovery projects.
Well, as I often mention on this blog, I generally know where things tend to fall apart.
The area where the landslide is occurring is a natural slope (cliff) that has never collapsed before.
Let's take a look around your home.
Is there a house located a little way up in the mountains that has areas around it that have collapsed and been patched up?
By "measures" here, I mean: Have work such as steel framing, sprayed mortar, rebar insertion, and anchor installation been performed?
Generally speaking, if areas that have collapsed in the past have been repaired, it should be fine as long as there isn't a collapse deep underground.
However, caution is needed if there are houses in mountain valleys or if the surrounding mountains have not collapsed.
In valleys, there is always the risk of debris flows and flash floods, and if there are slopes or cliffs that haven’t collapsed,
There is a risk of surface collapse due to rain.
The saturated mountain is lifted by the water, and the top layer flies off with a *thud*.
It is extremely dangerous because the flying debris is making its way down through the mountain valleys.
It’s true that it’s hard to take preventive measures on a daily basis.
So, as a precaution for people living in areas like this, the first thing to do is not to go home.
There's no such thing as a completely safe home.
Don't go home when there's a warning. I think that's the safest thing to do.
If you have family, it is important to evacuate to a designated evacuation area, such as a school.
People often ask me to let them know if there are any warning signs.
That said, it’s something you often hear on the internet and in the news.
However, I’ll include my thoughts on this as well.
Preliminary phenomena
- Cracks form in the cliff
An amateur would never notice a crack in the cliff, and it wouldn't be visible at night.
- Pebbles are falling one by one
It can be hard to tell because the wind might cause it to fall. At this point, the mountain is already in a saturated state and is floating. It’s trying to float.
It doesn't take long for them to start flying, so by the time you think, "Oh, a rock's falling," it's already too late.
And you can't see at night.
- Water gushes out from the cliff
There's a chance we might be able to see the moment it flies at the limit of saturation, but it might be impossible to convey that.
I can't see at night.
- Spring Water Stops Flowing or Becomes Cloudy
It's completely off the ground—we're almost at the point where the dirt's about to fly. You can't see anything at night.
- I hear the ground rumbling.
It's already in motion. There's no stopping it now.
If you notice any of the above signs,It's already too lateYou can see that.
If you see any warning signs, it's over. There's nothing you can do at that point, so just run.
Anyway, please evacuate from there with your family.
If you can't make it in time, evacuate to the second floor. (Limited to homes built about 10 years ago.)
If it's an old house, you'd better get out of there.
I think a reinforced concrete house should be fine to a certain extent. (As long as it's not an illegal structure.)
As for the approximate weight of the soil, it is about 2 metric tons per cubic meter (1 m × 1 m × 1 m).
That sediment also contains rocks ranging in weight from several hundred kilograms to several metric tons.
Two metric tons of dirt, rocks, and other debris are barreling toward the house. And it’s happening one after another.
Do you think the house will win??
I think there will be a lot of alerts tonight, so if you read this blog and think your area might be in danger, just evacuate.
I recommend that you don't go home.
Compared to landslides and debris flows, ordinary homes are no more than a slight elevation difference.
See you later.
