What's God's role? All the love in those guys and gals who swarm up to help those who are injured or sick; those who care enough to be there and assist. If God is Love, and love is what these people are giving out through their actions, then it is plain that God has at least one role here.
I think what you might be insunuating is that God brought about the disaster. Maybe. Maybe not. If God is everywhere and in everything then He/She?It is in the mind and hearts of human kind. There is a belief that people actually bring about these events by the combined effects of the Collective Unconscious's being filled with anger, rage, violence and the like...and maybe, just maybe, there is something in that.