California earthquakes

M2.7 earthquake 10km SW of Morongo Valley, CA

A magnitude 2.7 earthquake struck 10km SW of Morongo Valley, CA on Tue, Oct 22, 1946, 1:03 PM GMT-8 (21:03 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.5 3km SSE of Aguanga, CA. This one was a foreshock.

Morongo Valley forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1946-10-22 21:03:09 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
33.993° N, 116.668° W
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 3.4 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.26
Depth from
Operator assigned
Station coverage gap
273°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.815km NNW of Borrego Springs, CA · 29199 days ago · 2 km deep · 72 km away
  2. 3.53km SSE of Aguanga, CA · 29195 days ago · 16 km deep · 66 km away
  3. 2.86km SE of Aguanga, CA · 29195 days ago · 16 km deep · 67 km away
  4. 2.84km SSE of Loma Linda, CA · 29194 days ago · 16 km deep · 53 km away
  5. 2.62km W of Running Springs, CA · 29193 days ago · 7 km deep · 49 km away
  6. 2.814km SE of Joshua Tree, CA · 29187 days ago · 6 km deep · 42 km away
  7. 2.64km N of Upland, CA · 29183 days ago · 6 km deep · 91 km away
  8. 3.210km SSW of Borrego Springs, CA · 29182 days ago · 6 km deep · 95 km away
  9. 2.811km E of Yucaipa, CA · 29182 days ago · 6 km deep · 24 km away
  10. 3.03km NNE of Loma Linda, CA · 29179 days ago · 16 km deep · 54 km away
  11. 2.64km WSW of Bloomington, CA · 29176 days ago · 4 km deep · 72 km away
  12. 2.46km N of Aguanga, CA · 29175 days ago · 3 km deep · 59 km away
  13. 3.48km NW of Garnet, CA · 29160 days ago · 6 km deep · 7 km away
  14. 2.58km E of Running Springs, CA · 29156 days ago · 6 km deep · 41 km away
  15. 2.67km ENE of Desert Hot Springs, CA · 29155 days ago · 6 km deep · 22 km away
  16. 3.05km ENE of Morongo Valley, CA · 29152 days ago · 6 km deep · 15 km away
  17. 2.83km NNE of Morongo Valley, CA · 29152 days ago · 6 km deep · 13 km away
  18. 2.37km ESE of Palomar Observatory, CA · 29142 days ago · 4 km deep · 75 km away

Before

  1. 2.77km NNE of Cabazon, CA · 29206 days ago · 6 km deep · 9 km away
  2. 2.82km NNE of Colton, CA · 29209 days ago · 15 km deep · 60 km away
  3. 2.65km NNE of Cabazon, CA · 29215 days ago · 6 km deep · 10 km away
  4. 2.85km N of Perris, CA · 29218 days ago · 6 km deep · 55 km away
  5. 2.614km N of Banning, CA · 29225 days ago · 6 km deep · 18 km away
  6. 4.91km NE of Banning, CA · 29225 days ago · 13 km deep · 19 km away
  7. 3.014km N of Indio, CA · 29227 days ago · 6 km deep · 45 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3359113. Read Sat, Oct 3, 2026, 4:28 PM UTC.