A magnitude 6.9 quake struck 50 miles west off the coast of Eureka Sunday night at around 10:18 PM. There no reports of any damages or injuries. The tremor could be felt as far as San Francisco, reportedly.
There was no tsunami warning called for the region.
A series of aftershocks hit the area. By 7 AM, according to the Chron, U.S. Geological Survey "reported 21 aftershocks off the coast of the county with magnitudes ranging from 2.6 to 4.6, with the last one trembling at a magnitude of 3.3 about 60 miles west of Eureka at 6:58 a.m."
However, as AP notes, quakes are all too common in the area.
Earthquakes are very common in Eureka, a city of about 27,000 people about 270 miles northwest of San Francisco and 100 miles south of the Oregon state line. Nearby Arcata is home to about 17,000 people and Humboldt State University.
The area had a magnitude-5.6 earthquake in February, 2012 that did not cause serious damages or injuries.