The Cascadia Subduction Zone off the Oregon Coast continues to rumble off of Coos Bay. According to the U.S. Geological Survey, a 4.6-magnitude quake occurred Wednesday, July 16, 8:30 a.m., 134-miles west of Oregon’s Bay Area. A 2.6-magnitude quake also shook the Blue Lake area of Northern California , 12-miles north of Arcata, CA, at 5:41 p.m.