On January 13, 2018, a false missile alert was issued via the Emergency Alert System and Commercial Mobile Alert System over television, radio, and cellphones in the U.S. state of Hawaii.
The alert stated that there was a ballistic missile threat to Hawaii, advised residents to seek shelter, and stated "this is not a drill". The message was sent shortly after 8:00 a.m. HST. Almost 40 minutes later, a second message was sent describing the first as a "false alarm". State officials later blamed a button pushed in error during a shift change at the Hawaii Emergency Management Agency for the false first message.
Source: https://en.wikipedia.org/wiki/Hawaii_missile_alert
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