Campus Alert Archive
U of U

A Saturday Blast in Fletcher Room 328 Emptied the Physics Building

UThazmatemergency notificationmedium confidence

On April 8, 2023, a small explosion in the James Fletcher Building on the University of Utah campus prompted an evacuation. The blast was reported around 12:30 p.m. in Room 328, part of the Physics & Astronomy area in the College of Science. The explosion caused only minor damage, and there were no reports of serious injuries.

Alerts
2
Response
—
Killed
—
Injured
—
Institution
University of Utah
Public R1 · UT
Campus Alert
Confirmed Timeline

Alert Sequence

2 messages in sequence

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 ALERTmulti-channel
Approximate reconstruction147 chars
Campus Alert: Evacuate the James Fletcher Building due to a small explosion. Leave the building now and stay clear of the area while crews respond.

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

Reconstructed: the Salt Lake Tribune and KUTV reported the explosion was reported around 12:30 p.m. MDT and the building was evacuated; the precise notification text was not archived.
The blast occurred in Room 328, which sits in the Physics & Astronomy portion of the Fletcher Building.
ALL CLEARmulti-channel
Approximate reconstruction168 chars
Campus Alert: The James Fletcher Building has been cleared. Damage was minor and there is no ongoing hazard. The evacuation is lifted and the building may be reentered.

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

Reconstructed: coverage reported the explosion caused minor damage and the situation was resolved, indicating the hazard had passed.
This is a true all-clear: it lifted the evacuation and declared the building reenterable rather than maintaining avoidance.
Context

Background

The April 8, 2023 explosion at the University of Utah is a laboratory-hazard case at a major research university. According to the Salt Lake Tribune, a small explosion was reported around 12:30 p.m. MDT on a Saturday in Room 328 of the James Fletcher Building, which houses Physics & Astronomy in the College of Science. KUTV and Gephardt Daily reported the building was evacuated and that the blast caused minor damage with no serious injuries. Research-lab incidents like this one are a routine but underreported category of campus emergency notifications, driven by chemical and equipment hazards rather than weather or crime.
Analysis

Key Findings

A small explosion was reported around 12:30 p.m. MDT on April 8, 2023 in Room 328 of the James Fletcher Building
The room is part of the Physics & Astronomy area of the University of Utah's College of Science
The explosion caused only minor damage and no serious injuries were reported
The incident occurred on a Saturday, when building occupancy was lower than on a weekday
Outcome
Crews evacuated the James Fletcher Building and determined the explosion caused minor damage. No serious injuries were reported.
Provenance

Sources

  1. News
    Building evacuated after small explosion in University of Utah lab - Salt Lake Tribune
    sltrib.com
  2. News
    Small explosion at UofU laboratory prompts building evacuation - KUTV
    kutv.com
  3. News
    Small explosion at University of Utah science lab causes minor damage - Gephardt Daily
    gephardtdaily.com
  4. Official
    James Fletcher Building - University of Utah College of Science
    science.utah.edu
Tags
explosionlaboratoryutahevacuationemergency-notificationresearch-hazard
Added May 2026Updated May 2026Via ingestion