It could be due to many things. First most counties in a state police post area have transmitters, all of which are linked together within that post area.
So the first question is, are you within "about" 30 miles of a transmitter associated with Morehead post? (If you gave the county in which your scanner is located, it would be easier to offer ideas.)
Secondly, maybe Hazard post is more talkative that Morehead.
I'm in Jefferson County and can hear Frankfort post fairly well from the Shepherdsville are transmitter, which is the same place one of the E-town post transmitters area located. Frankfort has little traffic, where E-town can be more talkative. (About the only time I heard a large amount of traffic from Frankfort is when the trooper was shot and they were dealing with that.)