California earthquakes

M2.8 earthquake 145 km W of Ferndale, California

A magnitude 2.8 earthquake struck 145 km W of Ferndale, California on Sun, Aug 5, 1979, 1:42 PM PDT (20:42 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.8 134 km W of Ferndale, California. This one was a foreshock.

Ferndale 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
2.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1979-08-05 20:42:08 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
40.529° N, 125.976° 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 11.5 km horizontally, 12.8 km in depth
Depth from
From location
Station coverage gap
327°, poorly surrounded by stations
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.275 km WSW of Ferndale, California · 17226 days ago · 6 km deep · 79 km away
  2. 2.672 km W of Ferndale, California · 17222 days ago · 1 km deep · 73 km away
  3. 1.857 km W of Ferndale, California · 17213 days ago · 14 km deep · 89 km away
  4. 1.775 km WSW of Ferndale, California · 17208 days ago · 4 km deep · 73 km away
  5. 2.070 km W of Indianola, California · 17199 days ago · 6 km deep · 82 km away
  6. 3.0off the coast of Northern California · 17198 days ago · 4 km deep · 32 km away
  7. 2.471 km W of Ferndale, California · 17192 days ago · 2 km deep · 74 km away
  8. 2.567 km WNW of Samoa, California · 17189 days ago · 36 km deep · 97 km away
  9. 2.672 km WNW of Indianola, California · 17185 days ago · 12 km deep · 84 km away
  10. 2.687 km WNW of Samoa, California · 17183 days ago · 5 km deep · 83 km away
  11. 3.6118 km W of Ferndale, California · 17180 days ago · 4 km deep · 28 km away
  12. 2.076 km WSW of Ferndale, California · 17177 days ago · 23 km deep · 75 km away
  13. 3.8134 km W of Ferndale, California · 17177 days ago · 4 km deep · 14 km away
  14. 2.172 km WSW of Ferndale, California · 17174 days ago · 4 km deep · 78 km away
  15. 3.775 km W of Ferndale, California · 17173 days ago · 6 km deep · 70 km away
  16. 2.4133 km W of Ferndale, California · 17173 days ago · 4 km deep · 19 km away
  17. 2.487 km WSW of Ferndale, California · 17172 days ago · 4 km deep · 77 km away
  18. 2.3111 km W of Indianola, California · 17170 days ago · 4 km deep · 52 km away
  19. 2.187 km W of Ferndale, California · 17168 days ago · 5 km deep · 58 km away
  20. 2.5136 km W of Ferndale, California · 17167 days ago · 4 km deep · 11 km away

Before

  1. 3.494 km W of Ferndale, California · 17227 days ago · 84 km deep · 54 km away
  2. 4.769 km W of Indianola, California · 17231 days ago · 44 km deep · 82 km away
  3. 3.173 km WNW of Samoa, California · 17234 days ago · 0 km deep · 94 km away
  4. 1.975 km W of Ferndale, California · 17234 days ago · 5 km deep · 69 km away
  5. 1.858 km W of Ferndale, California · 17241 days ago · 16 km deep · 88 km away
  6. 1.761 km W of Ferndale, California · 17241 days ago · 5 km deep · 84 km away
  7. 1.965 km WSW of Ferndale, California · 17242 days ago · 6 km deep · 85 km away
  8. 3.063 km WSW of Ferndale, California · 17242 days ago · 29 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1046949. Read Sun, Oct 4, 2026, 3:32 PM UTC.