SONOMA COUNTY (CBS SF) — Two earthquakes on Saturday gave residents in the area of Sonoma County’s Big Sulphur Creek a mild shaking.

The first temblor, a 3.3 magnitude quake, struck late Saturday morning about 19 miles north of Windsor at a depth of 1.7 miles on the south side of Big Sulphur Creek in the Mayacmas Mountains.

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A second quake of similar strength struck Saturday night in northern Sonoma County, about a half mile from one that hit that morning.

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The second 3.4 magnitude quake occurred at 8:17 p.m. No injuries have been reported.

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Source: sanfrancisco.cbslocal.com.