I was in Malaysia when that happened! (Penang) I was there on my first missions trip, with YWAM, and we had just arrived a few days before it happened. The crazy thing is, we were supposed to be in Indonesia at that time... but our itinerary had changed. I remember finding out later that my family and friends were frantically trying to find out if I was still alive. My mom told me later that she was trying to get a hold of the YWAM base, and was besides herself until she was finally able to talk to someone and learned that we were all fine.
Where we were staying in Malaysia was at a higher elevation, so we didn't get hit ourselves...but we DID have the opportunity to help with the disaster relief.
Not far from where were staying, on the coast, all the houses were demolished. One of the things we did was dig through the dirt and debris to help families who lost their home find things they needed. It was a crazy experience, but believe it or not, at that time I didn't realize the magnitude of the whole thing. Because we didn't see the TV news reports, and where we were in Malaysia wasn't as bad as other places.
Later in our trip we went to Indonesia, but our pre-existing plans were to go to an orphanage and also to a village in the mountains, and neither of those locations were hit by the tsunami.
I used to have some photos of that trip, but those were on a computer I had a looong time ago, so I don't think I still have those photos... but now I want to look and see if I can find them somewhere, maybe in my website files.