File photo. A seismograph machine needle drawing a line depicting seismic and earthquake activity.
A preliminary 5.6 magnitude earthquake struck off the coast of Northern California Sunday morning, according to the United States Geological Survey.
The quake hit at 11:44 a.m. and it was centered 63.5 miles east of Petolia, 65.3 miles west of Ferndale in Humboldt County, 71.1 miles west of Fortuna and 74.6 miles west-southwest of Eureka, the USGS said.
No other information was immediately available.
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