A couple of earthquakes shook the fault lines that run parallel with the Oregon Coast Monday and Tuesday, April 11 & 12. According to the U.S. Geological Survey, the largest of the two was a 3.6-magnitude quake that occurred at 12:12 a.m. Tuesday and was located 161-miles west of Coos Bay. The smaller quake was recorded Monday night, 6:04 p.m., and was located 37-miles south to southwest of Eureka, CA.