EUREKA (CBS SF) — A magnitude 4.6 earthquake struck off the Humboldt County coast Thursday morning, according to the U.S. Geological Survey.

The USGS reported that the earthquake struck 10 miles west of Eureka at 9:24 a.m., at a depth of 11.9 miles.

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Visitors to the USGS website from the Eureka area felt light to moderate shaking. There are no immediate reports of damage or injuries.

The National Tsunami Warning Center said a tsunami is not expected.

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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.

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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.
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