Shelter-in-place, April 19, 2013
AI-generated · every claim is source-linkedOn the morning of April 19, 2013, Massachusetts Governor Deval Patrick imposed a shelter-in-place advisory across the entire city of Boston and surrounding municipalities while law enforcement pursued Boston Marathon bomber Dzhokhar Tsarnaev. Northeastern University closed for the day and instructed all students, faculty, and staff to remain indoors. NU Alert pushed continuous updates across email, text, and the university website while Public Safety, Dining Services, and Student Affairs delivered meals to students sheltering in Stetson East and International Village dining halls. The shelter-in-place was lifted at approximately 6:00 PM EDT after Tsarnaev was captured in a Watertown backyard.
- Alerts
- 5
- Response
- min
- Killed
- 0
- Injured
- 0
Alert Sequence
5 messages in sequence · 5 verified verbatim
How the first alert is built
To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.
Campus is SAFE. #Northeastern is CLOSED due to towns on alert, MBTA shut down.
Sourceabsent0/0
Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.
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Hazardabsent0/0
What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.
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Locationabsent0/0
Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.
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Guidanceabsent0/0
The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.
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Timeabsent0/0
When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.
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Impactabsent0/0
What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.
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Systematic AI judgments with visible reasoning, not human-validated codings.
About this analysisBackground
Key Findings
Sources
- Official
- Official2013 Boston Marathon 'Lockdown' Police Scanner Recordings - Northeastern Library DRSrepository.library.northeastern.eduarchived copy
- OfficialOur Marathon community archive - Northeastern University Librarymarathon.library.northeastern.eduarchived copy
- News
- News
- Student Paper
- Source
- Social
Campus Alert Archive. "Northeastern University: Shelter-in-place, April 19, 2013." Incident of April 19, 2013. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/northeastern-university-marathon-manhunt-2013-04-19/
Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.