Campus Alert Archive
CSUMB

9:20 PM at the Front Desk: A Phoned-In Bomb Threat Cleared Half of CSUMB's Residence Halls Until 1 AM

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.

On the night of February 19, 2025, a phoned-in bomb threat to the Tanimura and Antle Family Library at California State University, Monterey Bay prompted evacuation of the library and Area One residence halls. The first OtterAlert went out at 10:05 PM PST, 45 minutes after a student-assistant received the threatening call at the library front desk at 9:20 PM. The all-clear came just before 1 AM Thursday morning after a multi-agency K-9 sweep with the Monterey County Sheriff's Office Explosives team.

Alerts
3
Response
45 min
Killed
0
Injured
0
Institution
California State University, Monterey Bay
Public Masters · CA
~7,000 studentsOtterAlert
Confirmed Timeline

Alert Sequence

3 messages in sequence · 1 verified verbatim

Some alert texts below are approximate reconstructions from news coverage, not confirmed verbatim transcripts. Reconstructed texts are shown in italic with a dashed border. Verified verbatim texts have a solid border and are marked accordingly.

INITIAL ALERTEmail
Verified verbatimThe Lutrinae 'Anatomy of an emergency' investigation127 chars
an emergency has occurred at {the library}, police officers are responding. Library has been evacuated. Stay Clear of the area.
Verbatim per The Lutrinae's reconstruction of the OtterAlert sent at 10:05 PM PST
The curly braces around 'the library' and the lowercase 'an emergency has occurred' reflect template-engine syntax exposed in the live message
OtterAlert is intentionally non-specific in initial messaging to avoid panic, per CSUMB Emergency Manager Ken Folsom
UPDATESMS
Approximate reconstruction184 chars
OtterAlert: Police are evacuating Area One residence halls due to the threat at the library. Residents should report to the Otter Student Union. Avoid the library and surrounding area.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

Reconstructed from The Lutrinae's reporting that resident advisors began knocking on doors and notifying residents through text alerts
Area One residence halls are immediately adjacent to the Tanimura and Antle Family Library on the CSUMB campus
Students were directed to the Otter Student Union as a temporary shelter
ALL CLEARSMS
Approximate reconstruction169 chars
OtterAlert: The library has been cleared by police K-9 teams. No devices were found. Residents may return to their halls. Staff may go home. Thank you for your patience.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

Reconstructed from The Lutrinae reporting that the all-clear was issued 'right before 1 a.m. Thursday morning'
University Police, Marina Police, and the Monterey County Sheriff's Office Explosives K-9 team conducted the search
The total operation lasted approximately 3 hours 40 minutes from initial OtterAlert to all-clear
Context

Background

At 9:20 PM PST on Wednesday, February 19, 2025, a student assistant managing the front desk of the Tanimura and Antle Family Library received a phone call saying there was a bomb in the library. The library was evacuated and CSUMB's first OtterAlert went out at 10:05 PM PST — a 45-minute delay that CSUMB Emergency Manager Ken Folsom said reflected the time required to verify the threat. Resident advisors then began evacuating Area One residence halls door-to-door, with students directed to the Otter Student Union. CSUMB University Police, Marina Police and the Monterey County Sheriff's Office Explosives K-9 team conducted the search. No devices were found and the all-clear was issued just before 1 AM. The FBI joined the hoax investigation.
Analysis

Key Findings

The first OtterAlert exposed template syntax — '{the library}' rendered with curly braces — illustrating how mass-notification systems can leak unprocessed placeholder text under time pressure
The 45-minute gap between threat receipt (9:20 PM) and first alert (10:05 PM) is consistent with CSUMB's stated policy of verifying before broadcasting
Door-to-door RA evacuation of residence halls is standard for nighttime threats when residents may be asleep and not check phones
Outcome
No explosive devices were found. The FBI joined the investigation. The threat was determined to be a hoax. Students were sent to the Otter Student Union for shelter during the search.
Provenance

Sources

  1. Student Paper
    Bomb threat causes CSUMB Library and nearby residence halls to be evacuated (The Lutrinae)
    thelutrinae.com
  2. Student Paper
    Anatomy of an emergency: behind the library bomb threat (The Lutrinae)
    thelutrinae.com
  3. News
    Bomb threat hoax at CSUMB leads to evacuations, FBI investigation (KION)
    kioncentralcoast.com
  4. News
    Cal State Monterey Bay responds to a bomb threat (KAZU)
    kazu.org
Tags
bomb-threatlibraryevacuationcaliforniacsumbk9-searchfbi-investigationtemplate-leakresidence-hallshoaxHoax
Added May 2026Updated May 2026Via ingestion