Menominee Crack

The Menominee Crack is an unusual geological pop-up feature that was created rapidly one morning in October 2010. Located in Menominee, Michigan the crack stretches through the woods, is 361 feet long, over half a meter wide in some places, and up to 1.7 meters deep. In 2013, a group of Michigan Tech researchers led by Joshua Richardson began research on the crack. The researchers concluded that the crack is the first recorded example of such a popup without an obvious trigger. A description and analysis of the event is published in Seismological Research Letters.[1]

References

Richardson, J. P., Pennington, W. D., Waite, G. P., Galambus, M., Lanza, F., & Bowman, L. (2016). Menominee Crack: Bedrock Pop‐Up Event near Menominee, Michigan. Seismological Research Letters.

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[1] Richardson, J. P., Pennington, W. D., Waite, G. P., Galambus, M., Lanza, F., & Bowman, L. (2016). Menominee Crack: Bedrock Pop‐Up Event near Menominee, Michigan. Seismological Research Letters.