It sits immediately atop one of those multimillion year old buried volcano plugs that dot Earth's surface.
We hope the pluton that threw that sucker up is totally dead but you never can tell.
I guess you're right. Theoretically, we actually could spend $1,000,000,000,000 monoitoring every possible volcano everywhere. But the point is, that when one actually does erupt, we still can't do a thing about it anyway, so why bother. Only Superman can stop/reverse a major geological event.
“although you wouldn’t think Fairfax County Virginia had a volcano”
... You have Senator Webb to monitor.
That could cost millions.