I read a nice overview here.
Only question I have in my mind is how do the volcanoes destroy, more specifically in which direction.
* A volcano hex has to be placed on another volcano hex and may even be placed on top of multiple volcanos
* The volcanos may not face the same directions - in other words, an eruption has to be placed across two tiles
* Neither towers, nor temples may be covered by a tile
* It is forbidden to extinguish an entire settlement by an eruption, i.e. at least one building of a settlement has to stay intact). Note: a settlement is defined as all hex fields connected by buildings of the same player.
Eruption has to be placed across two tiles?
Further down the road, players will note that well-placed temples have the power to block nasty volcano eruptions
How can a temple block an eruption?
Anyone who played Taluva at Essen can you chime in?