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• #Cryoseism... or an ice quake 2017 crack

In the book, a lost teen boy survives a northern winter that’s so cold, trees explode into smithereens as if dynamited. I once found a reference in a novel to exploding trees.

#Cryoseism... or an ice quake 2017 crack

The Lakota call February cannapopa wi, “moon when trees crack from the cold.” The Arapaho consider December the tree-cracking time for the Abenaki, it’s January. Native peoples from northern regions were very familiar with this sound, and some even named a winter month in honor of it.

It’s an eerie sound on an otherwise still night. If you live in a wooded area, you’ve probably heard trees popping and cracking during a deep freeze. If soil moisture is high and frost is deep, even the earth can shift in a harmless localized cryoseism, or “frost quake” that produces a nerve-rattling bang. Frozen lakes and ponds emit ominous groans, snaps and booms that reverberate through the ice. When temperatures dip well below zero Fahrenheit, especially if they fall precipitously, things pop. Photo: Eli Sagor, Creative Commons, some rights reserved From “pancake ice” in Chicago to “snow waves” in upstate New York to partially frozen Niagara Falls, winter sure is leaving its mark this year.Frost crack on large red maple. “More than a thousand viewers told us they heard the frost quakes Sunday night and now we are getting some pictures of the giant cracks that developed in the ice across the state,” he wrote.įrost quakes are not the only unusual weather phenomena produced by the record-breaking cold. These pictures are from Steph in Canton and Roberta in Wallingford. More than a thousand viewers told us they heard frost quakes Sunday night and now we are getting some pictures of some of the giant cracks that developed in the ice across the state. NBC Connecticut meteorologist Ryan Hanrahan tweeted out these photos of large cracks in the ice covering the ground: Sometimes the quakes can also produce visual evidence, as was the case in Connecticut. It’s that expansion that causes the soil and rocks to make a “bang” or “boom” sound.Ĭheck out WGN meteorologist Morgan Kolkmeyer’s explainer GIF on Twitter:Īrea you hearing loud bangs? Some of those could be Cryoseisms! AKA Frost Quakes! /I3cRIS4hdC Next, the temperature must drop rapidly in a short time period for the water to freeze and expand.

First, the ground must be saturated with water, according to WGN. In order for a cryoseism to happen, there has to be a perfect storm of conditions in place, so to speak. Not to worry – it was just a “frost quake.” Walked all over the house last night trying to figure out what was making this loud booming noise. Others, like Twitter user Sam Johnson, also reported hearing loud bangs that were later attributed to frost quakes. “Just heard my first ‘frost quake’ of the night,” he wrote. Just had my first ‘frost quake’ of the night. Toledo, Ohio, meteorologist Ryan Wichman took to Twitter to say he heard one on Jan. The resulting noise is enough to wake you up out of a deep sleep. That being said, “frost quakes” can still be detected by seismic wave monitors, according to the Smithsonian.

That scary sound could be a frost quake - also known as a cryoseism - and it happens when rain and ice seep into the soil, then freeze and expand.Ī frost quake can cause the ground to shift and feel like an earthquake, although they are actually unrelated occurrences since earthquakes happen when a large piece of the earth’s crust moves. While you enjoy a long winter’s nap as brutally cold temperatures grip much of the country, you may awaken to a loud crack or snap.