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5 Aftershocks Hit Napa, Largest Quake Since Sunday's 6.0 Earthquake

NAPA (CBS SF) -- A series five aftershocks, one registering a preliminary magnitude 3.9, rattled Napa in between 5:30 and 7 a.m. Tuesday.

The quakes came just over 48 hours after the initial 6.0 magnitude earthquake caused widespread damage to Napa and Vallejo, and injured over 200 people.

The US Geological Survey says the 3.9-magnitude quake struck at 5:33 a.m. about 7 miles south of the city of Napa.

A sheriff's dispatcher says there have been no calls reporting damage or injuries.

There have been a series of small aftershocks, mostly in the 2.0-magnitude range

U.S. Geological Survey officials say there is a 25 percent chance of a strong and potentially damaging aftershock in the next seven days following Sunday's 6.0-magnitude earthquake near American Canyon.

The estimate comes after state geologists estimated the probability of strong aftershocks from the "South Napa earthquake" at more than 50 percent.

Queen of the Valley Hospital treated 208 people in the Emergency Department from the time the 6.0 magnitude earthquake struck early Sunday morning through the evening. The majority of those patients had non-life threatening injuries, including lacerations, abrasions and broken bones, according a statement from a hospital spokesperson Monday.

Inspectors were still fanning across city streets in Napa Monday morning to check buildings for damage from Sunday morning's earthquake and a total of 49 have been declared too damaged to allow people inside.

In Vallejo, 7 commercial buildings, including the post office at 385 Santa Clara St., have been red-tagged as uninhabitable. Thirty commercial buildings in Vallejo have been yellow-tagged for partial specified use, including clean-up, city officials said.



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