Christians believe 'natural disasters' or 'natural evil' are not evil in themselves, e.g. lava from volcanic activity produces fertile soil and floodwater from rivers can irrigate land
Satan tempts Jesus on three occasions when he is in the wilderness for 40 days and nights (Matt 4:1-11 & Luke 4:1-13) and is the reason why Judas betrayed Jesus according to Luke 22:3.
In Islam, he refused to bow down to Adam and said he would tempt humans forever to choose evil rather than good. God allows Shaytan to tempt people by presenting evil as attractive, but Shaytan has no power to make people do wrong as God has created everyone with free will.