[airborne]

I admit I haven't read every post on this thread but...

"Law enforcement officers cordoned off the South Oval just west of the stadium and used bomb-sniffing dogs and a robot to conduct a search. A second explosive device found in the area was detonated. "

...Is it possible that the Bomb Squad detonating the second device is what shook the stadium?

[Old Student]

"...Is it possible that the Bomb Squad detonating the second device is what shook the stadium?"

Yes, it is possible. So far, I've not found any information that suggested the stadium shook, although I have seen a couple of post that say a home (or possibly some homes) some distance from the stadium shook. I've been skimming rather fast, so I could have missed a thing or six, of course.

I know someone there who can probably find out, though. There is a seismograph in the basement of Sarkey's Energy Center. They will have a record of shocks, and their intensity. One of the profs there showed my wife and I, and our son, who was doing a report on earthquakes, the seismograph trace from the Murrah building bombing, and you can see where the bomb went off, and where the building collapsed, on that graph. (you can also see the traces of truck and trains in the area, btw.)

[An.American.Expatriate]

Is it possible that the Bomb Squad detonating the second device is what shook the stadium?

No. Second Detonation was AFTER the game as the people were leaving... 9PM or so....