Anger is something that comes fresh from the machine. It is hatred if it has been stored in the warehouse for a while.
Anger is there if you react to something. In the case of hatred, the memory of unpleasant experiences is already there, and then negative feelings are activated. Hatred has deep roots and can spread widely. Anger is more a short-term reaction and then you forget the situation.
The gradient within Europe is interesting as well: The farther you go south, the faster anger flares up; but the people there also get rid of it quickly. In Northern Europe, anger appears more slowly but it also stays longer. So the emotional reactions within Europe are a bit different.