(Scott Mills, OR) -- A small earthquake is reminding people that the "Big One" is yet to come. A four-point-zero magnitude earthquake struck yesterday around 5:30 p.m. near the town of Scotts Mills. The U.S. Geological Survey reports it hit a depth of about 10 miles. Experts say the event is a reminder that a monster nine-point-zero quake is still on the horizon. No damage or injuries were reported from yesterday's tremor.