“When the temperatures plunge rapidly below freezing, water in the ground will freeze and expand. As a result, the rock or ...

A frost quake, or a cryoseism, might sound scary, but it is a fascinating phenomenon.

Temperatures in Michigan are plunging below zero through Sunday, Jan. 25.

No, it's not an earthquake. The winter phenomenon is a seismic event caused by a sudden cracking in frozen soil or rock saturated with water or ice.

As temperatures across the Midwest tumbled below zero overnight Tuesday into Wednesday, many reported being awakened by the sound of loud booms, cracks and pops. Some even reported feeling tremors.

What are frost quakes? Here's another interesting phenomenon that could happen with frigid air set to hit this weekend.

CONCORDIA, Kan. (KSNT) – “Frost quakes” aren’t entirely uncommon, but the noises they make can be entirely unsettling if you’re never experienced one. A couple in Kansas recently witnessed their first ...