not weird at all - 2 main fault lines run through Scotland - the Highland Boundary Fault and the Southern Upland Fault.
The whole of the scottish central lowlands are a 'rift valley' between those two fault lines.
The areas along both faults have quite regular tremors but they are normally so weak and or deep that people/buildings are not effected, but every so often they are drawn to our attention by a bored media on slow news days.
Yes - I spent a few years over in the Seattle (Pac North West) area, on the edge of the Pacific Rim/Ring of Fire. And about 6 years ago they had a decent quake - think it was about 6.5 - and it was a very unnerving experience.
My colleagues and other locals had all been brought up with Earthquake drills - which I had not ever even thought about. I seem to remember standing there grinning like a drunk Cheshire cat as the floor quivered and walls shook, while everyone else got under desks and into doorways....
A few elevated roadss had problems and a couple of the older, dilapidated Seattle buildings had walls collapse but all in all it was a bit of a non-event. Was still a very strange experience though.
EDIT: actually just looked it up, it was a 6.8....
I was in one in Portugal a few years back. I slept through a part of it after it stopped You could hear dog's barking all around you. (This was out in the country near a small town) Then on the news it was on.
However I have experienced 3 tremors in Manchester, it would have been just before the Commonwealth Games. Very odd sensation.
The third one occurred while I was peacefully enthroned in trap one, leading me to evacuate in more ways than one... I was thinking if it had been 'The Big One' then at least it would have given the rescuers a laugh.