M3.3 earthquake 30km ESE of Campo, CA
A magnitude 3.3 earthquake struck 30km ESE of Campo, CA on Mon, May 16, 1949, 1:33 AM GMT-8 (09:33 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M3.5 17km S of Salton City, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ml), minor
- Local time
- UTC
- 1949-05-16 09:33:17 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 32.497° N, 116.183° W
- Region
- California
- 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 23.3 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 360°, poorly surrounded by stations
- Stations used
- 2
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.517km S of Salton City, CA · 28242 days ago · 21 km deep · 76 km away
- 3.532km NNE of Ensenada, B.C., MX · 28240 days ago · 6 km deep · 49 km away
- 3.310km NNE of Ensenada, B.C., MX · 28240 days ago · 6 km deep · 71 km away
- 3.010km SW of Imperial Beach, CA · 28216 days ago · 12 km deep · 94 km away
- 3.13km N of San Diego, CA · 28213 days ago · 1 km deep · 96 km away
- 3.870km ENE of Maneadero, B.C., MX · 28196 days ago · 6 km deep · 72 km away
- 3.212km N of Ocotillo Wells, CA · 28196 days ago · 6 km deep · 83 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3356018. Read Tue, Sep 22, 2026, 11:21 AM UTC.