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: Pennsylvania Police Chief's Resignation Announced After Officer Arrested In Connection With Capitol Riot
They say that’s the sound of an “frost quake.”READ MORE: It Happened Again! Watch As Pittsburgh Bald Eagle Knocked From Perch By Great Horned Owl
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: COVID-19 In Pennsylvania: Groups Representing State Troopers, Corrections Officers Renew Calls For Vaccine Prioritization
Sometimes a large “boom” and shaking follows. The Weather Channel says there’s usually no damage.