KCBS_740 NAPA (KCBS) — The earthquake that rocked Napa County two years ago has produced some 4,600 aftershocks, according to the U.S. Geological Survey.

The latest struck on Tuesday with a magnitude of 3.0.

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The South Napa Earthquake struck on August 24, 2014 and measured 6.0. One person was killed and 200 hurt, while damage from the quake was estimated anywhere between $360 million and $1 billion.

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It was the strongest earthquake in the Bay Area since the 1989 Loma Prieta earthquake which had a 6.9 magnitude.

Officials say that small aftershocks are rarely felt, but they are common whenever a quake ruptures the ground.

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