A rare weather phenomenon, called "frost quakes," was a likely culprit for loud popping sounds heard in Franklin County and ...

Several outlets reported on the loud bangs heard across Missouri this week, attributing them to frost quakes, formally known as cryoseism, linking them to the bitterly cold weather sweeping the ...

Rare frost quakes, also known as cryoseisms or ice quakes, were reported throughout the St. Louis region on Monday.

MISSOURI, USA — Loud booms recently heard ... A rare weather phenomenon, called "frost quakes," was a likely culprit for loud popping sounds heard in Franklin County and surrounding areas ...

Frost quakes — loud booms from underground during freezing temperatures — might be alarming to hear, but meteorologists say ...