There have been 7 earthquakes recorded in northwest Arizona along the Nevada border during the past few days. The latest one of magnitude 1.0 occurred around 4 pm local time yesterday (March 30). The largest one was a magnitude 2.3 on March 28. The smallest one is only magnitude 0.8.
The cluster is visible on the map south of Mesquite. [Credit, USGS]
Stephanoceras humphriesianum Ammonite Fossil
14 hours ago