Quartz Hill High School Lockdown: Bomb Threat Deemed a Hoax, Police Confirm

Quartz Hill, CA – November 5, 2025 — The final hours of the school day at Quartz Hill High School were disrupted on Wednesday afternoon after a bomb threat prompted an immediate lockdown. What began as a tense and frightening situation for students and parents was later determined to be a hoax, according to a press release from school officials and the Los Angeles County Sheriff’s Department (LASD).

Incident Overview

At approximately 2:30 p.m., Quartz Hill High administrators were notified by LASD that a call had been made to the sheriff’s department claiming a bomb was placed on or near the school campus.

Following safety protocols and on the recommendation of law enforcement, the school was placed on lockdown while deputies and emergency personnel arrived to assess the situation.

During the early moments of the lockdown, communication between the school and parents was limited, leaving many in the community anxious and uncertain about the nature of the threat. Several parents arrived near campus, awaiting updates as law enforcement secured the area.

Investigation and Response

According to the official statement from Quartz Hill High School:

“At approximately 2:30 pm, we received notification from the LASD that a call was made to the Sheriff’s department stating that a bomb was placed on or near the Quartz Hill campus. On the recommendation of LASD, and out of an abundance of caution, the school was placed on a lockdown. Additional LASD units were sent to the school to assist in assessing the status of the campus.”

Investigators determined that the threatening call had been made from a cell phone located on campus, though the identity of the caller was not immediately confirmed. Deputies from the Los Angeles County Lancaster Sheriff’s Station conducted a thorough search of the school and surrounding areas, ultimately finding no credible threat.

Once officials were certain the campus was safe, the lockdown was lifted, and students were released to return home safely.

No Credible Threat Found

Authorities have now classified the incident as a false alarm and a deliberate hoax. Law enforcement and school officials emphasized that every threat is taken seriously, regardless of outcome, and that strict measures will be taken against the individual(s) responsible once identified.

The school’s statement continued:

“We will work diligently to identify the individual(s) responsible for this prank and ensure they are held accountable to the fullest extent possible. The safety and security of our students and staff is our top priority. While this incident ultimately was found to be a prank, every threat is taken seriously by our staff and investigated immediately and thoroughly.”

Community Reaction

Parents and students expressed both relief and frustration after learning the lockdown stemmed from a prank. While thankful that no one was hurt, many voiced concerns about the fear and disruption caused by such incidents.

Local law enforcement is continuing to trace the phone call and investigate the source of the threat. School officials have urged anyone with information to come forward.

Commitment to Safety

Quartz Hill High School administrators reiterated that maintaining campus safety remains their highest priority. The district plans to review its communication and emergency procedures to ensure rapid and transparent updates in any future situations.

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Key Takeaways

• Quartz Hill High School went into lockdown on November 5, 2025, after a bomb threat was reported.

• The threat was investigated by LASD and determined to be a hoax.

• The call was traced to a cell phone on campus; the investigation to identify the caller continues.

• The school emphasized its commitment to student safety and accountability.