If you hear a loud "boom" in central Illinois this week, it could be a frost quake, a weather phenomenon that happens when temperatures plummet and groundwater freezes quickly. "Since water expands ...

This has been a winter full of surprises. The Philadelphia area has seen the biggest snowstorm in 10 years and one of the longest below-freezing streaks in our history. Nearly every day since ...

Frost quakes occur when water in saturated ground freezes rapidly, expands, and cracks under pressure. The events are harmless; however, they can be loud enough to wake people up. The phenomenon ...