Government or official record
Hawaii Missile Alert
U.S. Government Accountability Office
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Engineering failures · 13 January 2018Open article references →
The Hawaii False Missile Alert
Hawaii Emergency Management Agency warning area · United States
Why editors use it hereIndependent review of federal alert roles, state controls, and nationwide reliability lessons.
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Quick read
At 8:07 a.m.
Reviewed 26 July 2026 -
Trigger and conditions
During a shift-change exercise, a supervisor played a recorded message that said 'exercise, exercise, exercise' but also 'this is not a drill.' One warning officer later said he believed the threat was real, while others recognized the test.
Reviewed 26 July 2026 -
Uncertainty
The warning employee's belief is documented in federal and state investigations but cannot be independently measured; officials initially simplified the event as a wrong-button click.
Reviewed 26 July 2026 -
Why it matters
The alert demonstrates that a warning system must be designed for both speed and reversibility.
Reviewed 26 July 2026
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Quick read