@CNN: A frost quake, or cryoseism, happens when the water underground freezes and expands, causing the soil and rock to crack. https://t.co/Oks16sbvDp

January 31, 2019 / The Arbiter / CNN

@CNN: A frost quake, or cryoseism, happens when the water underground freezes and expands, causing the soil and rock to crack. https://t.co/Oks16sbvDp

A frost quake, or cryoseism, happens when the water underground freezes and expands, causing the soil and rock to crack. https://t.co/Oks16sbvDp

— CNN (@CNN) January 31, 2019

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