Some Coupeville area residents might have felt a very slight rumble or saw their lights flicker on Saturday night.

They’re not imagining things. According to the United States Geological Survey (USGS), there was a small 2.7 magnitude earthquake near Coupeville.

The quake occurred at 7:30 p.m. Saturday evening. The epicenter of the tremor was seven and a half miles west of Coupeville in Puget Sound.