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According to the Santa Rosa Fire Department, a 4.4 magnitude earthquake

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in Northern California on Tuesday evening sparked a response

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from fire officials in response to reports of gas leaks,

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gas odor triggered fire alarms, and stalled elevators

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A little more than 50 miles north of San Francisco, at Santa Rosa, 

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was where the earthquake's epicenter was located.

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A 3.9 magnitude earthquake occurred shortly after the 4.4 magnitudes one

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which occurred at 6:39 p.m. PT, according to the San Francisco Chronicle.

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4.66 miles of the epicenter were below ground.