It has been confirmed that a minor earthquake struck Donegal last evening.
A number of people reported disturbances shortly before midnight in the north of the county.
It was picked up by the equipment at the British Geological Survey.
"We've recorded an earthquake with a magnitude of 1.1," said BGS spokesman David Galloway.
"In terms of earthquakes, it is quite a small earthquake, but it was only at a depth of three kilometres hence probably why people felt it and the fact that it was quite late at night, when there was not a lot of traffic noise."