Thu, 2018-04-19 11:40 — TheWeirdo Soil liquefaction in Japan Video of Soil liquefaction in Japan Looks like the beginning of the end of the world. 4.833335 Average: 4.8 (6 votes)
What are we seeing here? What is "soil liquefication?" The description of the Youtube video was simply the author asking for BitCoin donations.
Could be a burst water main but I think the area is too big for that kind of damage. Maybe ground water rising due to excess rainfall or a river leaking into the soil.
Soil that has been fully saturated by liquid, it no longer behaves as "ground" but akin to a non-neutonian fluid. You can see at around 1:08 that the soil shifts, and almost "flows".