We recently had something similar happen down here:
https://www.stuff.co.nz/national/975...errupted-kiwis
Although I think ours pales in comparison to “ballistic missile inbound”.
I wonder if these accidents might be semi intentional, arms length, artificial “oops” to help spread the word that the system is online.
A million bucks in free advertising targeting the morons who would otherwise be ignorant unless it hits their social news feed.
It certainly creates a massive level of alert system awareness.