USGS geologist talks about the fragile San Francisco Bay. Watch live online tonight (7/28) at 7:00 pm: http://t.co/qFi5Bcs

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USGS geologist talks about the fragile San Francisco Bay. Watch live online toni…

by inmenloflash on July 28, 2011

USGS geologist talks about the fragile San Francisco Bay. Watch live online tonight (7/28) at 7:00 pm: http://t.co/qFi5Bcs

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