California earthquakes

M2.6 earthquake 7km SSW of Devore, CA

A magnitude 2.6 earthquake struck 7km SSW of Devore, CA on Wed, Oct 30, 1957, 2:40 AM GMT-8 (10:40 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.3 3km SE of Yucca Valley, CA. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.6 (ml), micro
Local time
UTC
1957-10-30 10:40:21 UTC
Depth
15.6 km (9.7 mi), shallow
Epicenter
34.163° N, 117.422° 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 3.5 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
185°, 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: 17 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 3.12km SE of Rowland Heights, CA · 25170 days ago · 2 km deep · 49 km away
  2. 3.42km NE of Calimesa, CA · 25163 days ago · 19 km deep · 40 km away
  3. 3.58km SW of Big Bear Lake, CA · 25152 days ago · 6 km deep · 41 km away
  4. 3.412km ESE of Running Springs, CA · 25152 days ago · 6 km deep · 39 km away
  5. 3.07km SW of Morongo Valley, CA · 25139 days ago · 6 km deep · 74 km away
  6. 4.33km SE of Yucca Valley, CA · 25136 days ago · 6 km deep · 93 km away
  7. 3.32km SE of Yucca Valley, CA · 25136 days ago · 6 km deep · 93 km away
  8. 3.27km N of Desert Hot Springs, CA · 25136 days ago · 6 km deep · 87 km away
  9. 3.74km SSE of Yucca Valley, CA · 25136 days ago · 6 km deep · 93 km away
  10. 3.45km N of Desert Hot Springs, CA · 25136 days ago · 6 km deep · 87 km away
  11. 2.35km WNW of Newport Beach, CA · 25128 days ago · 6 km deep · 78 km away
  12. 3.29km S of Lytle Creek, CA · 25123 days ago · 12 km deep · 8 km away
  13. 3.12km ESE of Grand Terrace, CA · 25122 days ago · 17 km deep · 19 km away
  14. 1.82km NW of Temple City, CA · 25114 days ago · 10 km deep · 60 km away
  15. 3.02km SW of Sierra Madre, CA · 25114 days ago · 12 km deep · 59 km away
  16. 1.81km S of West Puente Valley, CA · 25114 days ago · 6 km deep · 52 km away
  17. 2.02km NNE of Temple City, CA · 25111 days ago · 8 km deep · 58 km away

Before

  1. 3.23km SW of San Bernardino, CA · 25173 days ago · 15 km deep · 12 km away
  2. 2.111km NNE of Glendora, CA · 25179 days ago · 6 km deep · 36 km away
  3. 2.92km NNE of Big Bear City, CA · 25190 days ago · 6 km deep · 55 km away
  4. 3.24km N of Fontana, CA · 25191 days ago · 7 km deep · 5 km away
  5. 2.03km N of Marina del Rey, CA · 25193 days ago · 13 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3296239. Read Mon, Sep 28, 2026, 4:11 PM UTC.