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Indianapolis, IN – If you hear a sudden boom or feel a brief jolt on a frigid winter night, don’t be alarmed — it’s likely a frost quake, not an earthquake. Experts say residents from Indianapolis to Fort Wayne could experience more of these icy ground-shaking events as temperatures plunge across Indiana.
According to the Indiana Geological and Water Survey, frost quakes — officially called cryoseisms — occur when water trapped in soil freezes too quickly. As that moisture expands into ice, it exerts intense pressure until the frozen ground suddenly cracks, releasing energy with a loud, explosive sound…