Reports about the tremors were sent to BGS from people mostly within a 40km (25 mile) radius of the epicentre.
One person described how the “ground and the wall I was leaning against shook for about three seconds”.
Another reported that it “felt like a tank was passing the house”, and another said “there was a very loud bang and rumbling”.
Mary MacPhail, who runs a B&B near Strontian, told Scotland she was having Sunday dinner when she heard a “rumbling noise” through triple glazed windows.
“I initially thought it was maybe a plane going over,” she said. “We do get low flying planes sometimes.”
“The house didn’t shake, it was just a noise – a very loud rumbling.”
