M3.1 Quake "Explosion"? Battle Mountain, NV
Seems like a surface 'quake'.
https://earthquake.usgs.gov/earthquakes/eventpage/nn00670366/executive
FWIW, previous quakes are known in this area, but at 10+km deep. This surface quake/explosion is unusual. It's rare to see surface explosions register on seismographs, especially 3.1M