There isn't even a number. It's been generally regarded as just flatly impossible using current technologies. Even a partial step towards reliable earthquake pr

There isn't even a number. It's been generally regarded as just flatly impossible using current technologies. Even a partial step towards reliable earthquake prediction would be a massive advancement. See https://en.wikipedia.org/wiki/Earthquake_prediction#Difficulty_or_impossibility https://en.wikipedia.org/wiki/Earthquake_prediction#Difficul...