So, I've spent the day on a steam excursion down (and up) the Folkestone Harbour branch (plus Canterbury and a trip round Kent). As we arrived in Folkestone the vista was most unusual, if not that unsurprising - dozens and dozens of houses had scaffolding round their chimney stacks. Mostly it seemed that the houses under repair were clustered. So I don't know if particular highly localised geology concentrated the effects of the earthquake, or if particular builders (mostly Victorian, it would seem) had more shoddy workmanship, or more vulnerable designs, than others.
And gosh, I think that the loco crew on Lord Nelson were out to prove a point. On the first run up the Folkestone Harbour branch (1 in 30, quite curving, possibly the steepest incline in the UK), the diesel on the back for banking duties was idling. Not just not pushing, but not even moving itself. Just ticking over, being taken for the ride. I'm not sure if it was (intentionally) slacking on the second run, where we'd all got back on the train, but it's quite possible. Also, on the return, when we left Paddock Wood, we were 32 minutes late. We were only 7 minutes late arriving at Victoria. Around Clock House (Greg's back garden) we were probably doing 60mph, uphill, and someone (looking back from the window) said that, again, the diesel wasn't doing anything. At Victoria, the fireman, in his sixties, looked shattered. But I suspect he'd had an excellent day giving it his all.