Liquifaction

I live in Alaska amongst permafrost. The thought that a container may float out of the ground has crossed my mind. But we have tons of tanks of all kinds buried under ground around here and they never seem to come up. I think making the hole big enough to allow the addition of gravel and sand around the tank helps. This would allow the water to flow around the tank in the ground instead of floating it. Not sure how it will hold up during the coming earthquakes. The shaking may bring it up anyway but at least supplies that are inside will stay put.

Offered by Clip.

Water seepage and liquefaction forces become the issue if put below the ground. You will need to consider magnitude 9 or more jolts tapering off after the first less than an hour. There will be lots of rain and run off water. Don't place it at the lowest spot.

Offered by Mike.