4.4 Earthquake off Oregon Coast, Foreshock?

I found this latest earthquake to be interesting, 100 miles off the coast of California / Oregon, a magnitude 4.4.  The magnitude is of no particular interest, however it’s location is, at least to me… Given the recent very large earthquakes that have been shaking at the Pacific tectonic plate boundaries during the past year or so, the remaining ‘untouched’ region so far has been the west coast U.S (untouched – meaning a large earthquake).  While looking at the location of the past 5,000 earthquakes in the region shown in the map above, it is interesting that the recent magnitude 4.4 earthquake occurred in an area by itself, with no other apparent history of quakes there. In itself this is not alarming, but given the specific region with it’s very high concentration of historical earthquakes pulling and tugging at the Pacific plate boundary, the specific location of yesterday’s quake is exactly between two very active zones.   link