Earthquake Prediction: Could We Ever Forecast the Next...

Aired: 10/20/2011 | 0:10:24 | Clip
Hundreds of cities on the U.S. West Coast took part in the 2011 Great California ShakeOut earthquake drill on Thursday, just hours before a small tremor hit the San Francisco Bay Area. Science correspondent Miles O'Brien reports from Japan on efforts to predict big quakes before they hit.

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