California earthquakes

M1.8 earthquake 10 km E of Angwin, California

A magnitude 1.8 earthquake struck 10 km E of Angwin, California on Sat, Jan 26, 1974, 4:24 AM PDT (11:24 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.6 7 km WSW of Cobb, California. This one was a foreshock.

Angwin forecastMore in California

Map

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

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1974-01-26 11:24:24 UTC
Depth
7.0 km (4.3 mi), shallow
Epicenter
38.564° N, 122.334° 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 2.3 km horizontally, 3.4 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
253°, 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: 32 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.98 km N of Pittsburg, California · 19239 days ago · 16 km deep · 63 km away
  2. 1.73 km NNE of San Leandro, California · 19229 days ago · 8 km deep · 92 km away
  3. 2.36 km ENE of Blackhawk, California · 19228 days ago · 11 km deep · 90 km away
  4. 1.66 km ENE of Blackhawk, California · 19228 days ago · 10 km deep · 90 km away
  5. 2.05 km E of Santa Rosa, California · 19228 days ago · 10 km deep · 31 km away
  6. 1.76 km ENE of Blackhawk, California · 19227 days ago · 10 km deep · 90 km away
  7. 2.76 km ENE of Blackhawk, California · 19227 days ago · 12 km deep · 90 km away
  8. 1.84 km NNW of Pittsburg, California · 19225 days ago · 6 km deep · 67 km away
  9. 1.86 km E of Black Point-Green Point, California · 19223 days ago · 0 km deep · 50 km away
  10. 2.43 km ENE of Pittsburg, California · 19221 days ago · 12 km deep · 71 km away
  11. 2.31 km SSE of Larkfield-Wikiup, California · 19218 days ago · 0 km deep · 36 km away
  12. 1.91 km SE of Larkfield-Wikiup, California · 19218 days ago · 0 km deep · 36 km away
  13. 2.11 km NE of Larkfield-Wikiup, California · 19217 days ago · 8 km deep · 35 km away
  14. 2.39 km S of Antioch, California · 19216 days ago · 11 km deep · 85 km away
  15. 1.6Northern California · 19215 days ago · 9 km deep · 86 km away
  16. 2.88 km WSW of Cobb, California · 19211 days ago · 4 km deep · 49 km away
  17. 3.111 km SE of Hidden Valley Lake, California · 19210 days ago · 12 km deep · 23 km away
  18. 3.67 km WSW of Cobb, California · 19210 days ago · 3 km deep · 49 km away
  19. 2.56 km ESE of Hidden Valley Lake, California · 19208 days ago · 3 km deep · 28 km away
  20. 2.65 km NE of Geyserville, California · 19207 days ago · 2 km deep · 51 km away
  21. 2.57 km WSW of Cobb, California · 19206 days ago · 3 km deep · 49 km away
  22. 2.46 km ENE of Penngrove, California · 19206 days ago · 8 km deep · 35 km away
  23. 1.62 km NNE of San Leandro, California · 19206 days ago · 3 km deep · 93 km away
  24. 1.79 km NW of Broadmoor, California · 19197 days ago · 11 km deep · 94 km away
  25. 1.66 km S of Green Valley, California · 19197 days ago · 7 km deep · 43 km away
  26. 1.84 km N of Pittsburg, California · 19192 days ago · 17 km deep · 68 km away
  27. 2.05 km ENE of Rohnert Park, California · 19188 days ago · 6 km deep · 35 km away
  28. 1.78 km NNW of Bay Point, California · 19187 days ago · 21 km deep · 59 km away
  29. 3.310 km S of Cobb, California · 19187 days ago · 6 km deep · 40 km away
  30. 3.33 km E of Angwin, California · 19184 days ago · 9 km deep · 7 km away
  31. 3.12 km NNW of Ashland, California · 19184 days ago · 10 km deep · 96 km away
  32. 3.66 km SE of Cottonwood, California · 19182 days ago · 15 km deep · 36 km away

Before

  1. 2.91 km SSW of Moskowite Corner, California · 19244 days ago · 16 km deep · 19 km away
  2. 1.63 km W of Danville, California · 19247 days ago · 7 km deep · 87 km away
  3. 2.50 km WSW of Green Valley, California · 19253 days ago · 10 km deep · 38 km away
  4. 2.76 km NE of Blackhawk, California · 19255 days ago · 12 km deep · 90 km away
  5. 2.33 km NE of San Ramon, California · 19257 days ago · 8 km deep · 92 km away
  6. 2.87 km SSW of Cobb, California · 19257 days ago · 2 km deep · 44 km away
  7. 3.16 km SW of Kenwood, California · 19260 days ago · 3 km deep · 32 km away
  8. 2.22 km NW of Diablo, California · 19260 days ago · 7 km deep · 85 km away
  9. 1.71 km NW of Blackhawk, California · 19262 days ago · 10 km deep · 89 km away
  10. 1.64 km SE of San Ramon, California · 19263 days ago · 7 km deep · 97 km away
  11. 3.18 km S of Cobb, California · 19266 days ago · 4 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1018539. Read Thu, Oct 1, 2026, 4:51 PM UTC.