UW-Madison employees and students near Lake Mendota experienced an “ice quake” Thursday.
Buildings shook and some noise was heard at about 12:50 p.m., said UW seismologist Cliff Thurber.
“I am sure there is a big fault on the ice that developed around lunch time,” Thurber said.”One person in the Sociology Department was at a meeting on the eighth floor and heard a boom that was relatively scary, and people in Bascom Hall felt the shaking.”