Bomb threat forces campus evacuation; determined to be a hoax within 30 minutes

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.

• Sourceabsent0/25

  Final assessment

  All 25 reads agree the source is absent; no sender tag or named authority appears in the text.

  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.

  See all 25 individual reads

  1. absent: No sender tag or named authority appears in the text.
  2. absent: No branded signature, sender, or named authority appears in the text.
  3. absent: No sender tag, branded signature, or named authority appears in the text.
  4. absent: No branded signature or named authority appears, only the campus referenced.
  5. absent: No sender, branded signature, or issuing authority is identified in the text.
  6. absent: No sender, branded signature, or agency is identified in the text.
  7. absent: No sender tag, university name as sender, or named authority appears in the text.
  8. absent: No sender tag, university name as issuer, or named authority appears.
  9. absent: No sender, branded signature, or named authority appears in the text.
  10. absent: No sender, branded signature, or responding authority is named in the text.
  11. absent: No sender or branded signature appears in the text.
  12. absent: No sender, agency, or branded signature appears in the text.
  13. absent: No sender tag, signature, or issuing authority is named in the text.
  14. absent: No sender tag, university name, or agency identifies who sent it.
  15. absent: No sender, signature, or named authority appears in this message.
  16. absent: No sender, authority, or branded signature is identified in the text.
  17. absent: No sender, branded tag, or named agency appears in the text.
  18. absent: No sender tag, university name as issuer, or named agency is identified; the college is the target, not stated as sender.
  19. absent: No sender tag or named authority appears in the text.
  20. absent: No sender, agency, or branded signature is identified in the text.
  21. absent: No sender, branded signature, or named authority identifies who issued this message.
  22. absent: No sender, branded signature, or named authority is identified in the text.
  23. absent: No sender, branded signature, or named authority appears in the text.
  24. absent: No sender tag or issuing authority is identified in the text.
  25. absent: No sender tag, agency, or institution names itself in the text.
• Hazardabsent8/25

  Final assessment

  Most reads find the hazard absent: "a threat to campus" is generic and names no specific hazard; eight reads accept "a threat" as the named hazard.

  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.

  See all 25 individual reads

  1. absent: "a threat" is generic and names no specific hazard.
  2. present: It names "a threat" to the campus, a threat statement.
  3. absent: It cites "a threat to campus" but names no specific hazard.
  4. present: It names a specific threat: "a threat to San Bernardino Valley College campus".
  5. absent: It only says "a threat to" the campus, which does not name the specific hazard.
  6. present: It names "a threat to San Bernardino Valley College campus", which is generic threat, so no specific hazard type is named.
  7. absent: It says "a threat to San Bernardino Valley College campus" but names no specific hazard.
  8. present: It names "a threat to San Bernardino Valley College campus", which paired with the alert context indicates a threat hazard, though generic; I judge it generic and absent.
  9. absent: No specific hazard named; "a threat to campus" is generic without naming the threat type.
  10. absent: No specific threat is named; "a threat to... campus" does not name the hazard.
  11. present: It names "a threat to San Bernardino Valley College campus", referencing a threat.
  12. absent: It says only "a threat to ... campus", naming no specific hazard.
  13. absent: It cites "a threat" to campus but names no specific hazard.
  14. absent: It says "a threat to San Bernardino Valley College campus", naming no specific hazard.
  15. present: "There is a threat" plus the bomb-threat context; here only "a threat" is named, generic, so absent.
  16. absent: It says only "a threat to San Bernardino Valley College campus", which does not name the specific hazard.
  17. absent: No specific threat is named; "a threat to... campus" is generic without naming the hazard.
  18. present: It names "a threat to San Bernardino Valley College campus", referencing a threat broadly.
  19. absent: "a threat to" the campus is generic; no specific hazard like bomb is named.
  20. absent: "a threat to San Bernardino Valley College campus" is generic and does not name the hazard.
  21. absent: It says "a threat to" the campus but names no specific hazard like bomb or shooter.
  22. absent: "a threat" names no specific hazard, so no hazard is named (bomb is only in slug).
  23. absent: No specific threat is named; only "a threat to campus", which is generic.
  24. absent: It cites "a threat to San Bernardino Valley College campus" but names no specific hazard.
  25. present: It names "a threat to San Bernardino Valley College campus".
• Locationpresent25/25

  Final assessment

  All 25 reads agree a location is given: San Bernardino Valley College campus.

  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.

  See all 25 individual reads

  1. present: It cites "San Bernardino Valley College campus", a place.
  2. present: It specifies "San Bernardino Valley College campus".
  3. present: It names "San Bernardino Valley College campus", a location.
  4. present: It specifies "San Bernardino Valley College campus".
  5. present: It specifies "San Bernardino Valley College campus".
  6. present: It says "San Bernardino Valley College campus", a specific place.
  7. present: It names "San Bernardino Valley College campus".
  8. present: It names "San Bernardino Valley College campus".
  9. present: It names "San Bernardino Valley College campus".
  10. present: It specifies "San Bernardino Valley College campus", a named location.
  11. present: It locates it at "San Bernardino Valley College campus".
  12. present: It names "San Bernardino Valley College campus", a specific place.
  13. present: It refers to "San Bernardino Valley College campus".
  14. present: It names "San Bernardino Valley College campus".
  15. present: "San Bernardino Valley College campus" specifies the location.
  16. present: It names "San Bernardino Valley College campus", a specific location.
  17. present: It names "San Bernardino Valley College campus".
  18. present: It names "San Bernardino Valley College campus".
  19. present: It names "San Bernardino Valley College campus."
  20. present: It specifies "San Bernardino Valley College campus", a named place.
  21. present: It cites "San Bernardino Valley College campus", a specific place.
  22. present: It cites "San Bernardino Valley College campus", a specific location.
  23. present: It cites "San Bernardino Valley College campus", a specific place.
  24. present: It names "San Bernardino Valley College campus", a specific place.
  25. present: It cites "San Bernardino Valley College campus", a specific location.
• Guidancepresent25/25

  Final assessment

  All 25 reads agree guidance is present; the alert instructs recipients to leave the campus immediately.

  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.

  See all 25 individual reads

  1. present: "Please leave the campus immediately" instructs a protective action.
  2. present: It instructs people to "leave the campus immediately", a protective action.
  3. present: It instructs "leave the campus immediately", a protective action.
  4. present: It instructs recipients to "leave the campus immediately".
  5. present: It instructs "leave the campus immediately", a protective action.
  6. present: It instructs "Please leave the campus immediately", a protective action.
  7. present: It instructs people to "leave the campus immediately".
  8. present: "Please leave the campus immediately" is a protective instruction.
  9. present: It instructs "Please leave the campus immediately".
  10. present: It instructs "Please leave the campus immediately", a protective action.
  11. present: It instructs recipients to "leave the campus immediately", a protective action.
  12. present: It instructs "Please leave the campus immediately", a protective action.
  13. present: It instructs recipients to "leave the campus immediately".
  14. present: It instructs "leave the campus immediately".
  15. present: "Please leave the campus immediately" is a protective instruction.
  16. present: It instructs "Please leave the campus immediately", a protective action.
  17. present: It instructs "Please leave the campus immediately".
  18. present: It instructs recipients to "leave the campus immediately".
  19. present: "Please leave the campus immediately" is a protective instruction.
  20. present: It instructs "Please leave the campus immediately", a protective action.
  21. present: It instructs "Please leave the campus immediately", a protective action.
  22. present: It instructs recipients to "leave the campus immediately", a protective action.
  23. present: It instructs "Please leave the campus immediately", a protective action.
  24. present: It instructs "leave the campus immediately", a protective action.
  25. present: "Please leave the campus immediately" is a protective action instruction.
• Timepresent25/25

  Final assessment

  All 25 reads agree timing is present; "immediately" conveys urgency.

  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.

  See all 25 individual reads

  1. present: "immediately" conveys urgency, a time cue.
  2. present: "immediately" conveys urgency.
  3. present: "immediately" conveys urgency and recency, a time cue.
  4. present: The word "immediately" conveys urgency/recency.
  5. present: The word "immediately" conveys urgency and recency.
  6. present: It says "immediately", a recency cue.
  7. present: "immediately" conveys recency.
  8. present: "immediately" conveys immediacy.
  9. present: "immediately" conveys urgency, a time cue.
  10. present: "immediately" conveys urgency, a time cue.
  11. present: The word "immediately" conveys urgency/recency.
  12. present: The word "immediately" conveys urgency and recency.
  13. present: The word "immediately" conveys urgency and recency.
  14. present: "immediately" conveys recency.
  15. present: "immediately" conveys recency, a time cue.
  16. present: It says "immediately", a recency cue.
  17. present: "immediately" conveys urgency/recency.
  18. present: The word "immediately" conveys urgency, a time cue.
  19. present: "immediately" conveys urgency.
  20. present: "immediately" conveys an urgent, now-oriented timing cue.
  21. present: "immediately" conveys a time cue.
  22. present: "immediately" conveys a recency cue.
  23. present: "immediately" conveys immediacy.
  24. present: "immediately" conveys urgency and recency.
  25. present: "immediately" conveys urgency and recency.
• Impactabsent12/25

  Final assessment

  Absent (13 of 12), a near split. The majority held that naming a threat and ordering immediate departure states no harm or severity; a strong minority read the urgent campuswide evacuation as implying danger.

  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.

  See all 25 individual reads

  1. absent: Cites a threat and instructs people to leave immediately without stating what harm the threat could cause.
  2. absent: It names a threat to campus and orders immediate departure but states no harm or severity.
  3. present: It states there is a threat to the campus and directs people to leave immediately, with the urgent directive implying danger requiring immediate departure.
  4. present: It states there is a threat to the campus and to leave immediately, and the directive to leave the entire campus immediately for a threat implies serious danger.
  5. absent: Reports a threat and orders immediate departure but states no harm or severity.
  6. present: States a threat to campus and orders immediate evacuation, with immediate evacuation implying danger.
  7. absent: Names a threat and orders immediate departure but states no harm or severity.
  8. absent: It names a threat to campus and instructs leaving immediately but states no consequence or how serious the threat is.
  9. present: States there is a threat to campus and directs people to leave immediately, where the immediate evacuation for a threat implies danger.
  10. absent: It states there is a threat to campus and tells people to leave immediately but gives no stated harm or how dangerous the threat is.
  11. absent: States there is a threat and orders leaving campus immediately without stating any specific danger or consequence.
  12. present: It states there is a threat to the campus and instructs people to leave immediately, with the threat plus urgent evacuation conveying a danger to the campus.
  13. absent: States there is a threat and orders people to leave immediately without stating what the threat could do or its severity.
  14. present: It states there is a threat to campus and orders immediate departure, with the directive to leave immediately conveying danger.
  15. present: The text states there is a threat to the campus and orders people to leave immediately, with the immediate evacuation framing the threat as dangerous.
  16. present: Cites a threat to the campus and orders immediate departure, with the threat plus immediate evacuation implying danger to people.
  17. present: It states there is a threat to the campus and instructs leaving immediately, with the threat and urgent evacuation implying danger.
  18. present: Cites a threat to campus and directs leaving immediately, implying danger requiring evacuation for safety.
  19. present: States there is a threat to the campus and instructs leaving immediately, and a threat requiring immediate departure conveys implied danger.
  20. absent: Names a threat and instructs leaving immediately without stating what harm could result.
  21. absent: States there is a threat to campus and to leave immediately but gives no description of what the threat could do or its severity.
  22. present: States there is a threat to the campus and instructs people to leave immediately, with the threat plus urgent evacuation implying danger.
  23. absent: It reports a threat and tells people to leave immediately without stating any harm or how serious the threat is.
  24. absent: Names a threat to campus and orders immediate departure without stating what the threat could do.
  25. absent: It announces a threat and tells people to leave but states no harm or severity of the threat.