M2.8 earthquake 22km NNW of Nellis Air Force Base, NV
A magnitude 2.8 earthquake struck 22km NNW of Nellis Air Force Base, NV on Sat, Sep 23, 1978, 7:28 AM PDT (14:28 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M2.9 38km NW of Las Vegas, NV. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.8 (Mh), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 1978-09-23 14:28:41 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 36.431° N, 115.156° W
- Region
- Nevada
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.2 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 278°, poorly surrounded by stations
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayNevada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3313498. Read Sun, Oct 4, 2026, 7:46 AM UTC.