http://www.undergroundworldnews.com

Booms, it turns out. Big, mysterious booms that filled the sky from south Grand Pairie to Southlake on Tuesday afternoon. And while they may have been nothing more than building demolition, they made for a dramatic diversion from the cold weather.

Dogs howled, cats freaked out and Facebook feeds exploded about 4 p.m., when what sounded like a half-dozen distant bombs echoed around the suburbs.

In her north Irving dining room, Judy Howard had flashbacks to the city’s recent spate of earthquakes, which could cause booms when seismic waves collided.

But Irving’s last quake was over a month ago, and Howard’s floor wasn’t shaking. So like many others, she could only wonder.

“I’m used to the roar of the jets,” she said, speaking from her house, which is just a few miles Dallas/Fort Worth International Airport. “But those were not jet engines, unless one was backfiring.”

If not earthquakes, how about ice quakes? Scientists have pinned mysterious booms in other frigid cities on cryoseisms — a phenomenon in which quickly falling temperatures cause the ground to crack. But North Texas’ deep freeze came hours before the booms, and National Weather Service officials doubted the theory.

http://irvingblog.dallasnews.com/2015/02/bombs-or-birdshot-mysterious-booms-fill-the-skies-over-central-north-texas.html/