Campus Alert Archive
Cerritos

Classroom Bomb Claim Triggers Shelter-in-Place at Cerritos

CAbomb threatemergency notificationmedium confidence
Confirmed HoaxDetermined to be a hoax. The institutional response is documented because it reveals how the alert system performed under a perceived real threat.

Cerritos College ordered a campus-wide shelter-in-place after a person allegedly entered a classroom and said he was a terrorist with a bomb. Talon Marks reported that the incident caused an approximately two-hour lockdown, evacuations near the Administration Building, and cancellation of remaining classes.

Alerts
2
Response
—
Killed
0
Injured
0
Institution
Cerritos College
Community College · CA
RAVE Alert
Confirmed Timeline

Alert Sequence

2 messages in sequence · 2 verified verbatim

INITIAL ALERTTwitter/X
Verified verbatimPatch embedding Cerritos College official Twitter/X alert136 chars
ATTENTION: Shelter in place. There is a reported possible threat to campus. This is not a drill. Please take cover until further notice.
The message leads with a clear action and plainly distinguishes the incident from a drill.
The phrase 'possible threat' reflects incomplete early information while still directing immediate protective action.
UPDATETwitter/X
Verified verbatimPatch embedding Cerritos College official Twitter/X update154 chars
Update: Bomb threat to campus has been contained to the drop-off area near the Administrative Building. Continue to shelter in place until further notice.
The update narrows the hazard location without releasing the broader campus from shelter-in-place.
Naming the Administration Building drop-off area helped separate evacuation zones from areas still under lockdown.
Context

Background

Cerritos College's alert sequence began after a reported bomb threat near the Administration Building and moved quickly into shelter-in-place instructions. Student journalists at Talon Marks documented confusion over RAVE timing and reported that students initially were unsure whether the alert was a drill. CBS Los Angeles reported that the person allegedly told a class he was a terrorist with a bomb; the campus later canceled remaining classes after the suspect was detained.
Outcome
A suspect was detained, the campus was declared safe around 2:15 p.m., and all remaining classes for the day were canceled.
Provenance

Sources

  1. News
    Suspect Detained After Bomb Threat At Cerritos College
    patch.com
  2. Student Paper
    Campus Closed Following a Potential Bomb Threat
    talonmarks.com
  3. News
    'Terrorist' Bomb Threat Forces Evacuations, Cancels Classes At Cerritos College
    cbsnews.com
Tags
bomb-threatshelter-in-placecaliforniacommunity-collegerave-alertHoax
Added May 2026Updated May 2026Via ingestion