A 7.0 earthquake nearby is a pretty good reason to slow down trains, regardless of propulsion. The easily found page about Caltrain's response to earthquakes [

A 7.0 earthquake nearby is a pretty good reason to slow down trains, regardless of propulsion. The easily found page about Caltrain's response to earthquakes [1] doesn't include magnitude 7, but also doesn't include earthquakes more than 100 miles from the tracks either. So I think a brief reduction in speed is reasonable for a large quake within the larger area and quickly ending the restriction as its confirmed the quake was outside the policy scope. [1] https://www.caltrain.com/rider-information/safety-security/earthquakes-effect-caltrain-service https://www.caltrain.com/rider-information/safety-security/e...