By Rodrigo M. (r.martinez@latinospost.com) | First Posted: Aug 21, 2014 08:06 PM EDT

(Photo : YouTube)

A few days ago, a 1-kilometer-long and 4-meter-depth strange trench appeared in Hermosillo, Sonora.
Scientists don't know if it was caused by seismic moves or groundwater.
Behold the Suaqui fault: