Some people say that with suffering, comes also a relief....maybe not in this life but for those who deserve it certainly in the after-life.
The reason to peoples suffering, if caused by moral evil is usually in compensation for the pleasure of other people. Like in Africa, there are starving people, whilst the rich government officials banquet with the money they've stolen from their people. Whereas, with a natural disaster, it could be God's reason which we shouldn't always try to determine....well I don't think. Sometimes people say that God is punishing others through natural disasters but only He knows, unless we have been told, like from previous stories of the past in revelations.