It happened in Soviet Georgia, resulting in 5 dam collapses. It had no warnings, and they reported a laughably small number of casualties, which was par for the course in Soviet era disasters.
Or as someone observed at the time, “Russia has no disasters but the very worst.”
Similar to our socialist government in California. In early 2017 the Oroville dam partially collapsed and flooded areas downstream. Owned by California Department of Water Resources. Engineers complained for years that it needed repairs (2002, 2005, 2014 etc.), and money was finally set aside for repairs. But governors diverted money away for other pet projects (Newsome) and the dam failed causing a disaster. "Nothing to see here!". I wonder if anyone told Newsome that the state capital Sacramento lies in a flood plain downstream from dams.