M3.4 earthquake 41km ENE of Boulder City, NV
A magnitude 3.4 earthquake struck 41km ENE of Boulder City, NV on Sun, Dec 10, 1978, 6:35 AM MST (13:35 UTC), 6 km (4 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (mh), minor
- Local time
- UTC
- 1978-12-10 13:35:08 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 36.102° N, 114.407° W
- Region
- Arizona
- 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 5.4 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.30
- Depth from
- Operator assigned
- Station coverage gap
- 269°, poorly surrounded by stations
- Stations used
- 11
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 0 in the 30 days before it.
After
Earthquakes todayArizona earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3343943. Read Tue, Sep 22, 2026, 11:18 AM UTC.