[not2b]

We have a demonstration that it is possible just today, as the people who got an alert also got an estimate of the strength. The broadcast estimates were slightly low: 4.8 for a 5.1. But in the neighborhood.

[twawaaay]

This is actually excellent/impressive estimate.

Remember, for this to be usable you need to start sending it out BEFORE the actual earthquake ends at the place when it is first detected.