
"Is there something they are not telling us?"
There is a lot they don't know they can't tell us.
I collect such ideas and run them against my own concepts and some of them are very good indeed. The team are limited in what they can speculate on until they come to conclusions so they didn't mention microwaves -or at least I didn't see it in your article.
http://my.opera.com/Weatherlawyer/blog/2008/12/20/earthquakes
Sound is made when different layers of air slide over each other. There is no way that one stream can stir another. Try getting a tea leaf to move around in a cup of tea. That's with a relatively sticky perfect liquid. Gas is less viscous and more easily compressed.
Once you realise that, then conventional understanding is stood on its head and bumped loudly.