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Denver Alert Glitch: City-Wide All-Clear Confuses Residents
18 Apr
Summary
- An emergency all-clear alert was mistakenly sent to all of Denver.
- The alert was intended for a one-block radius after a suspect was apprehended.
- This is the second such city-wide alert error in Denver this year.

Denver experienced public confusion on April 18, 2026, after an emergency alert was erroneously broadcast across the entire city. The alert, intended to signal an "all-clear" for a specific incident, was mistakenly sent to all residents rather than the targeted one-block radius near Gunnison and Zuni.
This mistaken alert followed the apprehension of a suspect who had robbed an individual at gunpoint and fled the scene. Police had initially issued a shelter-in-place order for the immediate vicinity before issuing the incorrect all-clear message city-wide.
This event is the second occurrence of a widespread emergency alert error in Denver this year. In January, a similar issue resulted in a city-wide shelter-in-place notification being sent unnecessarily to residents, prompting an investigation into the vendor software's configuration problems.