On Nov 8th, 2016, a 30m-by-27m and 15m deep sinkhole opened up in Fukuoka, Japan damaging the road & threatening nearby buildings. However, it took only 48 hours to repair power cuts, restore gas and water supplies, as well as fill everything with 6,2

On Nov 8th, 2016, a 30m-by-27m and 15m deep sinkhole opened up in Fukuoka, Japan damaging the road & threatening nearby buildings. However, it took only 48 hours to repair power cuts, restore gas and water supplies, as well as fill everything with 6,2