California earthquakes

M1.7 earthquake 4 km S of Kingvale, California

A magnitude 1.7 earthquake struck 4 km S of Kingvale, California on Wed, Oct 26, 1983, 9:45 AM PDT (16:45 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.6 Northern California. 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
1.7 (md), micro
Local time
UTC
1983-10-26 16:45:28 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
39.280° N, 120.439° 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 0.7 km horizontally, 3.5 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
105°
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: 13 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.6Northern California · 15671 days ago · 6 km deep · 44 km away
  2. 2.26 km NNE of Truckee, California · 15669 days ago · 4 km deep · 27 km away
  3. 2.08 km E of Oroville East, California · 15669 days ago · 8 km deep · 85 km away
  4. 2.02 km SW of Oroville East, California · 15667 days ago · 6 km deep · 94 km away
  5. 1.913 km N of Clipper Mills, California · 15666 days ago · 13 km deep · 73 km away
  6. 1.93 km SE of South Oroville, California · 15660 days ago · 5 km deep · 95 km away
  7. 2.31 km W of Calpine, California · 15657 days ago · -1 km deep · 43 km away
  8. 2.77 km NNW of Spring Garden, California · 15646 days ago · -1 km deep · 82 km away
  9. 2.15 km NE of Taylorsville, California · 15645 days ago · 3 km deep · 97 km away
  10. 2.61 km W of Plumas Eureka, California · 15637 days ago · 5 km deep · 60 km away
  11. 2.29 km SW of South Lake Tahoe, California · 15632 days ago · 2 km deep · 55 km away
  12. 2.49 km NE of Alta, California · 15624 days ago · 41 km deep · 25 km away
  13. 2.03 km W of Truckee, California · 15616 days ago · 3 km deep · 19 km away

Before

  1. 2.59 km NE of Soda Springs, California · 15676 days ago · 15 km deep · 17 km away
  2. 2.57 km SW of Doyle, California · 15682 days ago · 0 km deep · 81 km away
  3. 3.19 km ESE of Sierra Brooks, California · 15682 days ago · 2 km deep · 46 km away
  4. 2.8Northern California · 15687 days ago · 1 km deep · 57 km away
  5. 2.75 km SE of Palermo, California · 15693 days ago · 5 km deep · 92 km away
  6. 1.58 km SSW of Kingvale, California · 15698 days ago · 3 km deep · 4 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1105650. Read Tue, Sep 22, 2026, 10:30 PM UTC.