I started maintaining a local longer-term database of seismic events from the BGS feed for myself, hence being able to dig back through last autumn and overlay a heatmap of the shaking by magnitude.

There are a couple of large faults - Tyndrum and Garabal - intersecting the loch and they invented a new tiny fault last year near the dam wall, but there's no one cause for all the swarm nor the activity centroid itself. Hmmmm.