On the 2nd August at 05:46 UTC (06:46 local time) an earthquake of magnitude 1.5 occurred in Donegal (NE of Milford on the Fanad Peninsula). Location 55.11N, 7.59W, see figure below.
There are reports of this event having been felt in the area around Milford. Events of this nature are not uncommon in this region. The largest event recorded in this area was a magnitude 2.2 which occurred near Clonmany on 21st November 1994.