Has read article
Edinburgh – Volcanic heart of Scotland
[link to volcanocafe.wordpress.com]
and has seen just on
[link to quakes.globalincidentmap.com]
the information on earthquake in Scotland.
As it had very small depth, only 1 km, it became interesting that there occurs. Here that has found
Summary
DATE 29/02/2012
ORIGIN TIME 14:55:29.2 UTC
LOCATION 56.233 -4.841
DEPTH 1 km
MAGNITUDE 2.4
LOCALITY ARROCHAR,ARYLL/BUTE
[link to earthquakes.bgs.ac.uk]

Point location
[link to maps.google.com]

is just in a stain "Cambrian to Devinian intrusions beneath volcanos", look at this chart
[link to www.scottishgeology.com]

Also very interesting pic of recent earthquakes for all UK
[link to earthquakes.bgs.ac.uk]
line-line-line