Four more earthquakes were recorded at the southern end of the two fault lines that run parallel with the Oregon Coast Thursday, Dec. 23. According to the U.S. Geological Survey, the quakes were 2.4-magnitude north of Petrolia, CA, 2.9 south of Petrolia, 2.5 west of Petrolia, and 2.6 a little further west of Petrolia, all near Cape Mendocino in Northern California.