“Could a single, sharp boom on a bitter night come from the ground itself?” In some areas of the Midwest, the sound comes unannounced: a sudden crack that can reverberate down a block and wake people ...

Learn what frost quakes are, why they happen, and why they sound like sudden booms.

WATERLOO, Iowa — Residents in the Cedar Valley reported hearing a loud boom on Wednesday morning. A similar noise was heard in the area in January. The sound was captured on a viewer's doorbell camera ...

Loud "booms" have been reported in south central Kentucky. Is it a frost quake? What to know ...