Unsure what is going on in my world but it seems changing the Event Interval to '0' doesn't prevent events from occurring. I've tried reloading saves, reloading game, but no matter what I do, events still trigger.
What's even odder, the event interval seems to change what events trigger. Changing the value to 20 seems to spawn in "Gods of Hell" consistently. I've spent about 52hrs in this world and didn't really have any problems until now.