Frost quakes can occur during arctic blasts

FORT WAYNE, Ind. (WANE) - Have you ever heard about frost quakes? They are a unique occurrence that can only happen under the right conditions... Tracking a stretch of below freezing January daysA frost quake occurs when temperatures rapidly fall, causing underground water to expand as it freezes. The new ice puts extra pressure on the surrounding soil and bedrock. The pressure builds until the soil and rocks crack, creating a loud boom or shaking.Here's a visual as to how frost quakes happen.
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