The Windsor Hum — A Mystery Sound Traced Across an International Border

The Windsor Hum is a persistent low-frequency humming and vibrating sound reported by residents of Windsor, Ontario, Canada since 2011. Unlike the Bristol and Taos hums, the Windsor phenomenon is accompanied by physical vibrations — residents report feeling their homes shake and their windows rattle. The Canadian government took the complaints seriously, and Natural Resources Canada investigated. In 2014, a study by the University of Windsor, funded by the Canadian government, identified the likely source as operations on Zug Island, a heavily industrialized island in the Rouge River in River Rouge, Michigan — directly across the international border. The blast furnaces and steel-processing operations on Zug Island produce intense low-frequency vibrations that can propagate through the ground and across the Detroit River. However, the exact mechanism by which these vibrations are perceived as a hum in Windsor — and why the phenomenon appears to have intensified since 2011 — has not been conclusively determined. The international boundary has complicated investigation and remediation, as U.S. Steel (which operates the Zug Island facility) has not granted Canadian researchers access to the island.