A crack forms in Michigan’s Upper Peninsula

200 yards long, 5 feet deep in parts.

From DATELINE ZERO: A large crack can evoke something ominous and unsettling. They are like the door at the end of the hallway that is only partially open — nagging at you to find out where it came from and what lies just beyond the opening. There is something alien about the sudden arrival of a crack.

These are the very sorts of feelings gripping residents of a small town in Michigan’s upper peninsula. A crack has arrived, accompanied by tremors, in Menominee Township — right at the southern part of the base of Michigan’s upper peninsula.

The crack isn’t noticeably growing bigger — and it has a long way to go if it’s going to turn the peninsula into an island. So rather than being afraid, local residents are simply scratching their heads and wondering where it came from. A team of researchers are expected to investigate soon.

Fortunately, the crack didn’t swallow up anyone’s home. It runs through a woodland. No one was reported injured.

An article at Upper Michigan Source has comments from residents who reported the tremor that announced the arrival of the mysterious crack:

It all started early Monday morning between 8 & 9 a.m. Central time, when Eileen and her neighbors heard a loud boom, and that’s when Eileen felt her house start to shake.

“I heard something, but I was concentrating more on the chair moving than I was listening,” Eileen explained. “It was just moving back and forth, like I had a vibrating chair, which I don’t have.”

Later on, Eileen told her friend, Doug Salewsky, what happened. On Tuesday, he stumbled upon the crevice a short distance away in the woods and later called the state police.

But what caused this unusual event? An earthquake? A sink hole? Authorities say, at the moment, no one seems to know.

“It’s a pretty remarkable sight really,” said MSP Trooper, Paul Anderson. “Everyone will speculate I’m sure. There are probably a hundred different opinions out there as to what caused this, but at this time, we don’t know what caused this.”

The U.S. Geological Survey along with Michigan Tech professors have been called to help “crack” the case. Until then, it remains a mystery.

According to other reports, the crack currently runs over 200 yards, and ”up two feet wide and five feet deep” in some parts.

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