The British Geological Survey, which records earthquakes, has confirmed the first tremor hit 1.1 on the Richter scale and measured 3kms deep.
The tremor’s official centre was in Buncrana on the Inishowen Peninsula but it was felt in many areas including Milford, Burnfoot and Carrigart around 9.20pm.
Now they say there was a second tremor in the same area at two minutes past midnight.
Donegaldaily.com reported the second incident last night after readers contacted us just after midnight, but it was only officially confirmed as a tremor today.
Experts say there may well be more.
“We’ve recorded an earthquake last night with a magnitude of 1.1 and a second one just after midnight of around 0.7 so it was smaller,” 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.”