Many listener contacted Highland Radio this moring having experienced the small earthquake overnight.
Tremors was felt in areas including Kerrykeel/Fanad, Downings, Letterkenny and Buncrana.
The British Geological Survey confirms that their equipment in Buncrana recorded a magnitude 2.2 earthquake at 1.04 this morning. The quake's measured depth was 3km.
Highland listener Mary was at home in Glencar when the tremors struck, she describes what happened:
David Galloway, from the British Geological Survey explains what happened last night: