The Arizona Geological Survey is monitoring a 2-mile long crack that has opened up in the Arizona desert. Recent drone flights over the crack reveal that it has continued to grow both in length ...

Making use of drones for the first time, the Arizona Geological Survey (AZGS) is investigating a long fissure intimidating the Arizona desert. The extensive crack, stretching about two miles ...

"The crack is worrisome, but it's out in the middle of the desert with nothing nearby," Cook said. His main concern is that someone riding an off-road vehicle could stop by the crack, get off the ...