[Reily]

Pressure waves in the atmosphere sufficient to cause seismic activity in Greenland & Iceland. However these atmospheric pressure waves are not noticed elsewhere! I need more evidence before I accept this.

[cuz1961]

It was a gretta veggie fart.

[Boogieman]

"Pressure waves in the atmosphere sufficient to cause seismic activity in Greenland & Iceland. However these atmospheric pressure waves are not noticed elsewhere!"

Obviously the Asgardians opened the Bifrost again.