"Yeah, I felt it," said Power. "It's funny, because in the last month that's about the third earthquake I felt. I felt one at home in North Carolina, I felt one in Baltimore, I felt one here - so I'm getting accustomed to it. It's actually fun."
"It's my second - I was in my office in Pennsylvania the other day and my chair kind of rolled, so I felt one there," added Andretti. "My Japanese friends act like it's no big deal over here, it happens all the time. Fortunately it wasn't a big one."
At the risk of over-stretching a literary metaphor, Motegi also sent a sizeable tremor through the IZOD IndyCar Championship by putting Power into the lead of the points standings - albeit by just 11pts. In a series where the winner can take 50pts for a race, having such a slender advantage might also appear to be "no big deal", but - as Power points out - being in front is still a genuine strategic as well as psychological edge at this point of the season.
"I just need to keep finishing in front of the #10 car the rest of the way and we'll be fine," he pointed out. "We'll keep chipping away like we have been."
And keeping quiet when it comes to all this championship talk is Scott Dixon, who is some 59pts back from Will Power and 48pts from Dario Franchitti, but still poised to pounce should the frontrunners do anything silly and wipe each other out in one or other of the remaining races.
Anything could still happen: not only is the fat lady not out there singing, she's not even selected her gown for the evening concert yet.