- Huntsville, AL
- Special Affiliations
- SKYWARN® Volunteer,
Well here is my non-scientist understanding of what happens with a frostquake. It really runs on the same principle of how potholes form in the winter months. Basically, the ground soaks up water and more than likely is rapidly cooled to sub-freezing levels. The liquid water turns to ice and expands. In some cases when it expands it applies increasing pressure to the frozen Earth above. This pressure builds when the ice-laden ground shifts or breaks it causes a loud boom. Anyone that lives in the area around Huntsville can tell you that boom is easily amplified by clouds.And somebody please get on here and explain these frostquakes. Some videos with sound would be nice!
edit- added video with good example