Haha, we were watching that too!

Yes and couldn't figure out what it was. Twittered and posted and heard nothing at first, then a couple other OC lotters mentioned they heard it. It was weird, I could hear parts of the house rattling, but never felt the shake.

The whales have captured the Navy's deep sea sonar equipment and have turned it against us

Maybe someone forgot to push a button, or turned a wheel.