PITTSBURGH (KDKA) – Was there a frost quake in Pittsburgh over the weekend?
The Weather Channel shared a video recorded in the Pittsburgh area where you can hear what sounds like a large pop and rumble.READ MORE: State Police Looking For Missing 5-Year-Old Lenny Hatinda In Indiana County
They say that’s the sound of an “frost quake.”READ MORE: Pittsburgh Public Schools Board Approves Health And Safety Plan
According to the Weather Channel, a frost quake happens when temperatures rapidly drop to near or below freezing. This causes water to freeze, expanding into ice and putting stress into soil or bedrock until it cracks.MORE NEWS: Contour Airlines Announces Service Out Of Pittsburgh International Airport
Sometimes a large “boom” and shaking follows. The Weather Channel says there’s usually no damage.