[J. Worthington]

Anyone know how long it might take before they know if a destructive tsunami is on the move?

[Jeff Head]

Seems like the great Tsunami of a few years ago took many hours to get across to India where it killed a lot of people. My guess is that islands in the path will feel and report it in advance if there is any such wave headed towards Hawaii or any other major population.

But a lot of people in the Somoan Islands today are feeling the brunt of this. Some of those villages are relatively isolated to this day.