"Why did God make tsunamis?"
God made the universe to be full of energy. Because of all that energy we have planets and stars, the wind and the sunshine. And that energy also means we live on a planet that has earthquakes and big waves like tsunamis. And because of all that energy, it was possible for you and I to be here. That's the kind of universe God created; the kind that has you and I in it, and God is very interested in you, and very interested in me. Sometimes that universe is scary, and sometimes it's beautiful.