Stanford uses a layered communications strategy to communicate with faculty, staff, students and community members in the event of an emergency. At the onset of an incident, such as a situation involving an active threat or a bomb threat, you will likely receive limited information through a limited number of sources.

AlertSU is the university’s mass notification system. It allows university officials to deliver messages to Stanford faculty, staff and students in the event of a life threatening situation on campus. If AlertSU is activated, you will receive emergency notifications via the contact points listed in your Stanford directory records. This should include: your office phone, text messaging on your cell phone, email address and/or your home phone if listed. All university provided cell phones are required to be listed in your directory information. Voice mail messages will be delivered to the phone numbers you provide if the number is not answered. More information about the AlertSU system is available at Note: Not all messaging modes may be used in every incident. When multiple modes are used, they may not arrive at the same time. Due to varying conditions some messages may arrive sooner than others. SMS text messages to your cell phone are predicted to be the most rapid form of delivery. Text messaging may be more effective during an emergency as it may still function even when voice communication via cell phones will not.

Be sure to keep your emergency information updated in

(Students use

If the AlertSU or the university’s Outdoor Warning System is activated, follow the instructions immediately:

  • For example, “Shelter in Place” means you must seek immediate shelter inside the building; if you are instructed to “evacuate” an area or building, you should do so immediately and proceed to the designated Emergency Assembly Point (EAP) for the building you are in.

For updated information and instructions during an emergency, visit In the event that the university’s IT systems are down, the university maintains a mirror of the emergency website at an offsite location. You will be able to access it in the same way you access the regular Stanford website.

Tune in to KZSU 90.1 or log on to:

Call one of the campus Emergency Information Hotlines for updated information:

  • Local: (650) 725-5555
  • Out of state: (844) 253-7878 or 844-AlertSU
  • International: 01(602) 241-6769
  • SLAC Emergency Hotline: (877) 447-SLAC (7522)
  • Hospital Information: (650) 498-8888

Individual schools also maintain local hotlines. Your local hotline number is:


The university also will provide updated information to the appropriate media outlets.