Seattle Public Utilities Is Hearing Weird Things Below the Surface of Pioneer Square

Last month I tried feeling the ground in Pioneer Square to detect settlement. That's the SPU monitoring station near my feet. Kelly O
There's a mystery afoot! This morning, Seattle Public Utilities sent out an emergency notice warning residents of Pioneer Square that they could have their water shut off. Workers would be investigating a possible leak in a water main on Main Street between 1st Avenue South and 3rd Avenue South, it read.
A possible leak? Would this