This, from a BBC article entitled UN urges rapid action on poverty
"Every month, 150,000 children in Africa, if not more, are dying from the silent tsunami of malaria, a largely preventable and utterly treatable disease," he said.
Maybe it's just me, but I find this usage of tsunami wholly inappropriate, given recent events. Is it also just a coincidence that the number of malaria casualties is approximately equal to that of the tidal wave that hit Indonesia? The tsunami/malaria analogy on its own is awful, which leads me to believe the writer is trying to borrow credence for his topic from the tsunami tragedy. While the malaria deaths are also tragic, I don't think the author's usage here reflects good judgment or taste. But then, this is a BBC article.