M3.1 earthquake 12km NNE of Cabazon, CA
A magnitude 3.1 earthquake struck 12km NNE of Cabazon, CA on Fri, Oct 19, 1956, 6:38 PM GMT-8 (02:38 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M3.1 9km NE of Cabazon, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (ml), minor
- Local time
- UTC
- 1956-10-20 02:38:55 UTC
- Depth
- 13.0 km (8.1 mi), shallow
- Epicenter
- 34.014° N, 116.734° 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 1.2 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 140°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 9 in the 30 days before it.
After
- 2.66km SE of Loma Linda, CA · 25516 days ago · 13 km deep · 45 km away
- 3.19km NE of Cabazon, CA · 25503 days ago · 19 km deep · 3 km away
- 2.94km N of Pala, CA · 25495 days ago · 5 km deep · 75 km away
Before
- 2.44km N of Fontana, CA · 25543 days ago · 0 km deep · 67 km away
- 3.012km NE of Cabazon, CA · 25552 days ago · 15 km deep · 5 km away
- 3.019km SSE of Joshua Tree, CA · 25554 days ago · 6 km deep · 48 km away
- 3.26km WNW of San Jacinto, CA · 25556 days ago · 6 km deep · 35 km away
- 3.76km NW of San Jacinto, CA · 25557 days ago · 6 km deep · 32 km away
- 3.017km S of Twentynine Palms, CA · 25563 days ago · 6 km deep · 60 km away
- 4.212km ESE of Anza, CA · 25566 days ago · 15 km deep · 56 km away
- 2.88km NNE of Running Springs, CA · 25568 days ago · 2 km deep · 42 km away
- 3.222km SSW of Twentynine Palms, CA · 25569 days ago · 6 km deep · 52 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3295709. Read Tue, Sep 22, 2026, 10:02 AM UTC.