My building had a pretty good shake about half-an-hour ago (12:30 Mountain Time). Noticeable, but no chance of damage.
We just had an aftershock (1 PM Mountain time). Felt about the same strength.
The first one is already up on the USGS site. Nine miles north-northwest of Cedar City. They say magnitude 3.1. I’m not sure how I could have felt that.
UPDATE: the second quake is now listed. Magnitude 3.5, a bit further to the north-northwest.
UPDATE 2: now they’re reporting a third one, a 2.9, perhaps 40 miles due west.
UPDATE 3: Mickey Mouse was here! The map shows the southwest corner of Utah, eastern Nevada, and a bit of Arizona. The two red dots on the right were within the last hour. The red dot to the left is the one in Update 2 that I did not feel. Colleague Wayne Roberts said he felt the yellow one on the right yesterday.