Aftershocks jar northern California

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Aftershocks from the northern California earthquake rumbled through the Bay Area early Tuesday, the U.S. Geological Survey said.

One was a 3.9 magnitude aftershock that struck near American Canyon.

It was the largest since the 6.0 quake hit in the same area early Sunday.

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Dozens of people were injured in Sunday's quake, which caused at least $1 billion in property damage in Napa and other communities.