The planet Earth continued her campaign against the human race this week, shifting the method from sinkholes to a mile-wide rip across a Mexican state. It's
a giant fissure in the Northern Mexican desert, 3,300 feet long and up to 25 feet deep. Speculation centered at first around an earthquake, but the region is not known for seismic activity.
The linked article thinks a catastrophic loss of groundwater led to the rent. And offers this caution:
Just because Cthulhu isn't clambering out of the breach to wreak havoc on humankind DOES NOT MEAN we shouldn't be alarmed by the fact we've sucked so much water out of the ground that the surface of the earth is collapsing.