Did you hear a boom or hear shaking during the cold last weekend? It could've been a frost quake. Our weather specialist Allister Aalders breaks down how frost quakes occur.
The processes needed for a frost quake to occur.As Atlantic Canadians prepared for the bitter cold last weekend, there was concern about power outages, burst pipes and dead car batteries.I first received a message from a reader near Stewiacke, N.S., last Friday evening that frost quakes had been occurring. There were reports from around the region and outside of Atlantic Canada of loud booms and light shaking.
The sudden drop in temperature causes the water in the ground to freeze. The frozen water then expands and puts extra pressure on the soil and bedrock in the ground. The stress from this pressure continues to build until the bedrock or soil cracks which can result in a loud boom noise and, in some cases, shaking.
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