Tsunami by Adrienne ~ during the tsunami (left side) and the devastation after it (right side).
A tornado by Andre.
You can see many more photos of nature disasters made with legos at the Lego Quest blog. We especially like the first photo with the tsunami.
"Lego Quest is a bi-weekly challenge for Lego loving homeschool and unschooled kids. It is non-competitive, creative fun. There are no winners and there are no commitments. Play along only when you are inspired by the challenge."