Swarm of small earthquakes along a greenbelt in Nevada about 100 miles North of NV.
https://www.google.com/maps/place/Alamo,+NV+89001/@37.3573601,-115.1678716,3705m/data=!3m1!1e3!4m5!3m4!1s0x80b7c4cdbe140d39:0x1c8c2c749a67ce9b!8m2!3d37.3649613!4d-115.1644614
http://scedc.caltech.edu/recent/Maps/115-37.html