It was a perfectly normal morning on level four ... until Stan the Oceanologist came sprinting into the work area, panic on his face.

He reached the center of the room, slumped against a workstation, and panted, "Another - underwater earthquake - thought you ought to know."

Stan then sprinted out again, leaving his coworkers to absorb the news silently.

That was the third report this week of an earthquake in the Irish and Celtic Seas. What on earth could be going on?