Is Haiti the result of a capricious God who intervenes in time and space or of a humanity who doesn't?

When natural disaster strikes questions and comments about God’s motives and actions (and in Haiti’s case the devil’s own sentient behavior) abound. Conversations about humanity’s culpability seem sparse. How is it that, in 1989, a 7.0 earthquake kills only 63 people in the San Francisco bay area while a 7.0 stretches the death toll towards 100,000 in Haiti? Is it because God did or didn’t do something? Is the devil at work? Is it because people did or didn’t do something? What do you think?