The University successfully tested Alert Carolina emergency sirens and text messages on Tuesday.
The new and sixth emergency siren at the William and Ida Friday Continuing Education Center was also used in the test.
Text messages were sent to more than 37,700 unique numbers. For the initial siren, this took about 75 seconds, and for the all-clear, about 66 seconds.
More than 50,300 emails were sent for both the initial siren and the all-clear.
In a real emergency, sirens would sound for events such as an armed and dangerous person on or near campus, a chemical spill or a tornado warning.