your best bet is to drain most of the water it may not look like it but even a small pool the water is very heavy the only other way is to use very strong straps (like used to pull a car that is stuck) and get them tight and try to reset the pool but be careful when you start pulling on the pool sides it may blow out good luck
Yes assuming that no damage was done to it.
Vietnam shifted the burden of the ground fighting from American troops to South Vietnamese troops during the later stages of the war. This was called "Vietnamization".
The tsunami hit because of the earthquake shifted the ground and caused the tsunami.
Emptying a pool is a risky procedure, but must be done in the case of replastering or restoration. The weight of the water stabilizes the structure of the pool against the substrate (soil/gravel). Once you remove the water, you have nothing to stabilize the pool. This is particularly dangerous if the ground is wet, or is flooded by recent rains. In this case, the pool can "float" and cause cracking of the structure. It is likely that your pool shifted a little once the water was out. You need a professional to look over the structure and determine if there are other structural faults or worse--leaks.
You have to be careful about emptying any in-ground pool. Normally they have a hydrostatic valve in the deepest part of the pool in case there is ground water built up around the outside of the pool. If there is the valve will allow ground water into the pool. if there isn't there is a good chance that the pool will start to float in the ground water. In effect the only thing you have to worry about is that there is no water under the pool if there is you will need to find a way of getting rid of it before emptying the pool.
when a bird walks on the ground its feet senses vibrations in the ground to let it know where its food is.
It sounds like there is a broken water line under the sand. Perhaps from a sprinker system?
land
Terrestrial, or ground, systems work by sending very high frequency signals from transmitters to repeater stations and back to receivers
Wastewater from your kitchen and bathroom is piped to a gully trap before emptying into the sewer. A gully trap is a basin in the ground with a water seal to prevent foul odours of the sewer reaching the surface. Gully traps are buried in the ground with the tops or surround raised above ground level to prevent ground water entering into the sewer.
After an earthquake, the environment goes through some changes. Plates under the ground are shifted, and trees and buildings may be damaged.
Wheel hop is usually a tire that has a shifted belt. Spin the wheel with it off the ground and check for irregularities.