(Vancouver, WA)  --  Scientists say seven earthquakes were recorded yesterday, about 300 miles off the coast of Oregon.  The strongest was a five-point-nine-magnitude temblor that registered at 1:13 p.m.  The initial quake was a five-point-eight, which happened around midnight yesterday morning, followed in the subsequent hours by a four-point-three, a five-point-oh, and a four-point-four.  A three-point-nine-magnitude quake was recorded at 7:50 last night, followed at 8:11 p.m. by a four-point-two.  The U.S. Geological Survey says none of the quakes was strong enough to trigger a tsunami.