The sinking or settling of the ground surface caused by the movement of the earth's crust or the over-extraction of groundwater.

The sinking of the earth's surface due to geological movement, excessive groundwater extraction, or construction; also called [[地陷|地陷|di4 xian4]], [[地面沉降|地面沉降|di4 mian4 chen2 jiang4]], or [[地层下陷|地層下陷|di4 ceng2 xia4 xian4]]