> This correlated with an earthquake…

Plenty of disasters don't. "No earthquake, no incident" obviously can't be the logic tree.

> In the UK (and elsewhere) a large percentage of track is covered by cameras - inspection of over the top claims can be rapidly dismissed.

"Yes. That doesn't do much to detect a stone from a parapet rolling onto the line though. Hence the need for inspection."

Sounds like you now agree it's less a need?

> Sounds like a case for cyber crimes and public nuisance.

"Sorry, not much we can do." As is the case when elderly folks get their accounts drained over the phone today.