The hazards and horn circuit are on the same fuse. Turn signal is a different circuit. Possibly your turn signal wire has melded with the hazard wire and is shorting? What happens when you turn on your hazard switch? Does the turn signal also affect the hazard switch?
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Which fuse is blowing? In this schematic colored in red is a green w/orange stripe wire that runs from the positive side of the horns circuit downstream of the horn fuse over to the hazard/turn signal switch to provide a hot wire to the hazard switch so in an emergency and w/out ignition power the hazard lights will still work. You should inspect your turn signal and hazard wire running up the column. Then if you can't find it pull the wheel off and then take off the turn signal/headlight/hazard switch and inspect the wires.