From the article:
Trains were halted after a suspected AI-generated picture that seemed to show major damage to a bridge appeared on social media following an earthquake.
... Railway expert Tony Miles said due to the timing of the incident, very few passengers will have been impacted by the hoax as the services passing through at that time were primarily freight and sleeper trains.
"They generally go slow so as not to disturb the passengers trying to sleep - this means they have a bit of leeway to go faster and make up time if they encounter a delay," he said.
"It's more the fact that Network Rail will have had to mobilise a team to go and check the bridge which could impact their work for days."
Standard responsible rail maintainance is to investigate rail integrity following heavy rains, earthquakes, etc.A fake image of a stone bridge with fallen parapets prompts the same response as a phone call about a fallen stone from a bridge or (ideally !!) just the earthquake itself - send out a hi-railer for a track inspection.
The larger story here (be it the UK, the US, or AU) is track inspections .. manned or unmanned?
Currently on HN: Railroads will be allowed to reduce inspections and rely more on technology (US) https://news.ycombinator.com/item?id=46177550
https://apnews.com/article/automated-railroad-track-inspecti...
on the decision to veer toward unmanned inspections that rely upon lidar, gauge measures, crack vibration sensing etc.
Personally I veer toward manned patrols with state of the art instrumentation - for the rail I'm familiar with there are things that can happen with ballast that are best picked up by a human, for now.