Did You feel them? The last and larger one was 21 miles south southwest  of Ferndale.  The first struck a couple of minutes before the hour and the other struck right after 97 p.m.

UPDATE 9:28 p.m.:

There was another earthquake, a 2.4,  east of Arcata about 10 minutes before 9 p.m.

Screengrab from here.

UPDATE 9:37 p.m.: In the last several hours there have been multiple small quakes.

Disregarding the Hollister quake because it was out of the area, that still leaves five little shakers in the last three hours.