California, Dec 8: An earthquake measuring 6.5 on the Richter scale struck California coast on Thursday.
The epicentre of the quake, which hit around 6.50 am Pacific time, was 165km west of Ferndale, California, at a depth of around 10 kms, said reports.
The U.S. Geological Survey has not issued any tsunami warnings in connection with the temblor.
The tremors were felt as far away as San Francisco, said reports.
No injuries or damages have been reported so far.
In 2010, a 6.5 earthquake in the California region had snapped power lines, toppled chimneys and affected traffic signals.
The north coast of California is said to be seismically active areas, regularly producing earthquakes.