M2.0 earthquake 39km SSW of Qualeys Camp, NV

A magnitude 2.0 earthquake struck 39km SSW of Qualeys Camp, NV on Wed, Feb 21, 2018, 8:13 AM PST (16:13 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.6 8km NNE of Round Valley, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.05	Md, duration	Northern California Seismic System	Preferred · Final · ±0.205 · 31 stations
1.8	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.29 · 17 stations

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 66 in the 30 days before it.

The first 60 of 131.

From the USGS Earthquake Hazards Program and its partner networks, event nc72973281 (also filed as nn00622584). Read Mon, Oct 5, 2026, 4:28 AM UTC.