University of California, Riverside

Campus Emergency Status




No Restrictions

Alertus test

The campus conducts an Alertus Bell Tower Speaker Calibration Test on the First Friday of the month at at 12:00PM (NOON). During this time you will hear multiple tones periodically from the Bell Tower. These will be loud steady sirens and "whoop-whoop" sounds that vary in intensity and type, some with verbal instructions. UC Riverside is committed to providing a safe and secure environment to all campus stakeholders. An important aspect of this commitment is ongoing testing and refinement of the various communications technologies, systems, and processes used during emergencies. 

ens survey

Note: Testing of the campus emergency communications systems takes place on a reoccurring basis. Results of the most recent survey can be viewed through the Emergency Communications system effectiveness report. For additional information (i.e., what to do when you hear the Emergency Warning Siren), refer to the "Take Action" section of this webpage, or contact

More Information 

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Department Information

Environmental Health & Safety
Environmental Health & Safety Building

Tel: (951) 827-5528
Fax: (951) 827-5122