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Cluster Of 7 Small Earthquakes Hit Bay Area From North To South

HOLLISTER (CBS SF) -- A swarm of seven small earthquakes hit the Bay Area Wednesday evening, according to the U.S. Geological Survey's automated seismograph alert network.

The quakes ranging from magnitude 0.4 to 1.6 struck shortly before 8 p.m. Pacific Time at an estimated depth of 5km below the earth's surface. Deeper quakes are less noticeable while a shallow quake--in the 0 to 40 mile depth range--can feel much stronger than their actual reported magnitude. Quakes just below the earth's surface, in the 0 to 10 miles range, can cause even more damage at lower magnitudes.

The quakes hit from the Hollister area in the south to as far north as Napa.

COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center

This article will be updated as information warrants, and follow KPIX 5 on Twitter at @CBSSF or KCBS Radio on Twitter at @KCBSNews for updates on breaking news anytime.

DID YOU FEEL IT?: USGS Shake Map For Northern California
LIVE QUAKE MAP: Track Real-Time Hot Spots
BAY AREA FAULTS: Interactive Map Of Local Faults

Strong earthquakes with an epicenter off the coast can trigger tsunamis, depending on the size and type of the fault movement. The Pacific Tsunami Warning Center tracks earthquake data for the West Coast.

Tsunami Alerts & Maps

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