Wonder if the one we get is going to be so cal or nor cal because it’s obvious one coming all these others popping off
Future state / Future tech would be having a massive array of sensors. Basically the whole Cali/Mexico area is about where the plate snags... as one wall of rock is moving south, where the other is moving north. Eventually because of the rocks there is a snag, and when that snag is violently broken apart it causes a Earthquake.
So those sensors would be able to pinpoint where the plates have stopped moving, indicating the snag... and where the likely Earthquake will happen.