A strong 7.0 magnitude earthquake has struck off the coast of northern California, according to the US Geological Survey.
A tsunami warning has been issued along the coasts of both northern California and southern Oregon following the quake.
The earthquake's epicentre was marked near Ferndale, California, a small city in Humboldt County.
It is unclear how widespread the damage is, but one resident of Ferndale who spoke to the BBC in the minutes following the quake said the inside of the building she was in "looks like a bomb has gone off in every room".
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