Japan is learning what life is life under a megaquake watch. NPR's Rob Schmitz talks to Richard Allen, director of the Berkeley Seismology Lab, about what it means.
ROB SCHMITZ, HOST:
It's been an unsettling few days in Japan. A 7.5 magnitude earthquake off the coast of the country on Monday put the nation on what's called a megaquake watch. Seismologists say there's a 1% chance of an earthquake 8.0 or higher of... [4359 chars]