JHU
Emergency Notifications
The Johns Hopkins Emergency Alert System, powered by Rave Mobile Safety, sends a short text message to each subscriber's cellphone when there is a significant incident that presents imminent danger; separately, Security Alerts are issued by Campus Safety & Security under the Clery Act to notify the community of certain crimes in a manner that is timely and will aid in the prevention of similar crimes.
Read the official policyInstitution
Johns Hopkins University
Private R1 · MD
~31,275 studentsJohns Hopkins Emergency Alert System
In the policy’s own words
What the policy says
Platform and triggerverbatim
Johns Hopkins Emergency Alert System is powered by Rave Mobile Safety. If there is a significant incident that presents imminent danger, a short text message will be sent to the cellphone of each subscriber.
- — Names Rave Mobile Safety as the platform and states the imminent-danger trigger for a short text alert; this exact wording recurred identically across multiple independent search results.
Clery Security Alerts (timely warning)verbatim
Security Alerts are used by Campus Safety & Security to notify the campus community of certain crimes in a manner that is timely and will aid in the prevention of similar crimes.
- — Defines the Clery timely-warning track (Security Alerts) and the 'timely / aid in the prevention of similar crimes' standard; identical wording recurred across multiple search results.
Default subscription / opt-in for textreconstructed
By default, you're subscribed to receive notification to your Hopkins email account for your primary campus. If you've provided your cell phone number, you'll also receive emergency alerts via text message notification.
- — Describes the default email subscription and the opt-in for text alerts; reproduced from a search snippet and not independently double-confirmed, so left not verbatim-confirmed.
At a glance
How this policy works
- When it activates
- An emergency alert (text message) is sent when there is a significant incident that presents imminent danger. The Rave system is also used for brief, actionable instructions (avoid this area, shelter in place, all clear) and for timely operational updates such as inclement-weather notifications and emergency road closures. Separately, Clery Security Alerts are issued to notify the community of certain crimes in a timely manner that will aid in the prevention of similar crimes.
- Who decides
- Campus Safety & Security (the Johns Hopkins Department of Public Safety) issues Security Alerts and operates the Emergency Alert System. The public pages reviewed do not name a single specific officeholder who must authorize each emergency notification.
- Timeliness standard
- Security Alerts are issued in a manner that is timely and will aid in the prevention of similar crimes; emergency alerts are sent when a significant incident presents imminent danger. No specific minute-based timeliness standard is reproduced on the public pages reviewed.
- Emergency notification vs. timely warning
- Johns Hopkins separates the two Clery message types: emergency notifications (a short text message via the Rave-powered Emergency Alert System when a significant incident presents imminent danger) and Security Alerts (Clery timely warnings used to notify the community of certain crimes in a timely manner that will aid in preventing similar crimes). Crime reports and security alerts are published in accordance with the Clery Act.
- Testing cadence
- The university runs periodic emergency-alert-system tests across its campuses; recurring Homewood campus emergency-alert-systems tests were publicized through the JHU Hub during 2025. A specific fixed cadence is not stated in numeric form on the public pages reviewed.
- Scope & limits
- The system is available only to Johns Hopkins students, faculty, and staff. By default, affiliates are subscribed to receive notification to their Hopkins email account for their primary campus; those who provide a cell-phone number also receive text-message emergency alerts. As of late 2025, more than 60,000 affiliates were enrolled.
ChannelsSmsEmail
Analysis
Reading the policy
Johns Hopkins University operates a two-track Clery communications model through its Department of Public Safety / Campus Safety & Security. The first track is emergency notification: the Johns Hopkins Emergency Alert System is powered by Rave Mobile Safety, and if there is a significant incident that presents imminent danger, a short text message is sent to the cellphone of each subscriber. The university describes Rave as its primary tool for brief, actionable text alerts — instructions such as avoid this area, shelter in place, all clear, or operational changes due to weather — and the system is also used for timely operational updates including inclement-weather notifications and emergency road closures. As of late 2025 more than 60,000 Hopkins affiliates were enrolled.
The second track is Clery timely warning: Security Alerts are used by Campus Safety & Security to notify the campus community of certain crimes in a manner that is timely and will aid in the prevention of similar crimes, and crime reports and security alerts are published in accordance with the Clery Act. The system is available only to Johns Hopkins students, faculty, and staff. By default, affiliates are subscribed to receive notification to their Hopkins email account for their primary campus; those who have provided a cell-phone number also receive emergency alerts via text-message notification.
On platform/vendor, Hopkins publicly identifies Rave Mobile Safety as the technology behind the alert system; earlier public references and some peer-school comparisons sometimes describe legacy Everbridge usage, but the current Hopkins-branded system is the Rave-powered Johns Hopkins Emergency Alert System. On testing, the university runs periodic emergency-alert-system tests across its campuses (for example, recurring Homewood campus emergency-alert-systems tests publicized through the university Hub in 2025). The public pages reviewed do not name a single specific officeholder who must authorize each emergency notification, nor do they reproduce a minute-based timeliness standard. (Policy language here is reproduced from search-engine snippets of the official JHU Public Safety pages and the JHU Hub, which returned HTTP 403 when fetched directly in this environment; phrases that recurred identically across multiple independent results are marked verbatim-confirmed below.)
Takeaways
Key findings
The Johns Hopkins Emergency Alert System is powered by Rave Mobile Safety and sends a short text message to each subscriber when a significant incident presents imminent danger.
Hopkins runs a two-track Clery model: Rave emergency notifications for imminent danger and Security Alerts (timely warnings) for certain crimes issued in a manner that is timely and will aid in the prevention of similar crimes.
Campus Safety & Security (JHU Department of Public Safety) operates the alert system and issues Security Alerts; no single authorizing officeholder is named on the public pages reviewed.
Affiliates are subscribed by default to Hopkins email for their primary campus and may opt in to text alerts by providing a cell number; the system is available only to JHU students, faculty, and staff, with 60,000+ enrolled as of late 2025.
The university runs periodic emergency-alert-system tests (e.g., recurring 2025 Homewood campus tests publicized via the JHU Hub); no numeric fixed cadence or minute-based timeliness standard is reproduced on the public pages reviewed.
Policy, meet practice
When this system actually fired
8 documented times JHU’s alert system was used, from the case archive.
Provenance
Sources
- Official
- Official
- Official
- Social
- Social
Tags
policyemergency-notificationtimely-warningjohns-hopkins-universityrave-mobile-safetyclery
Added 2026-06-21Updated 2026-06-21Via ingestion