When artic air blasts through the Northeast and New England this weekend, it could cause a rare weather phenomenon called frost quakes, often mistaken for minor earthquakes.
seismic events caused by a sudden fracturing or cracking action in frozen ground, soil or rock that is saturated with water or ice. If the cracking is big enough, the process can cause a shaking motion and a loud boom. For this reason, they are often mistaken for minor earthquakes.
They are triggered by a rapid temperature drop in a short amount of time when the air is at or below freezing. The cold air suddenly freezes the liquid water in the ground, causing expansion, which then causes stress and pressure to build up. The result causes soil and rocks to crack, which can make a booming sound and produce minor shaking.
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