What Is An Ice Quake? Frost Quake Opens Giant Fissure In Wisconsin – January 14 2014

Within the last few weeks, different loud booms were heard and rattled parts of Canada and of the USA. Scientists believe they are caused by a natural phenomenon called ‘frost quake’. But what is actually an ice quake and when does it occur?

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frost quake forms giant crack (100 feet) in frozen road in wisconsin on January 13 2014

Yesterday, Tuesday 13 2014, mysterious booms and shaking were reported again by residents from Waupun, Campbellsport and elsewhere in the Fond du Lac County. Geologists say the booms were likely a strange natural phenomenon known as an ice quake.

When do ice quakes occur?

Frost quakes, or cryoseisms, occur when there is a rapid drop in temperature. Water that is in the ground freezes. Because it has nowhere else to go, it cracks the soil or rock causing a loud noise and the shaking of the ground.

These types of cryoseisms are rare and poorly understood. There are two types of cryoseisms: a frost quake and an ice quake. An ice quake occurs over bodies of water such as lakes and rivers as presented in the next video.

Most frost quakes occur after a heavy rainfall or snow fall when there is a large amount of moisture on the ground. As shown in the above picture, frost quakes can even open large cracks in frozen roads.

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