M6.5 Off the coast near Ferndale California

On December 8, 2016 at 6:49 AM (local time) a magnitude 6.5 earthquake occurred of the coast of Northern California near Ferndale, California. This was followed by a magnitude 4.9 aftershock. More information about the main shock can be found at the USGS website.

The earthquakes are on strike/slip transform faults that accommodate seafloor spreading. Because there is little vertical offset, the earthquakes are non-tsunamigenic, and no tsunami Warnings or Advisories have been published. In addition, although the quakes are fairly shallow, the ground motion attenuation resulted in light to weak shaking onshore.

Therefore, at the present time, there are no plans to activate the Clearinghouse, but we’re monitoring the situation. If warranted, the Clearinghouse will activate. Please check back for further instructions.