California earthquakes

M1.6 earthquake 1 km SE of Benbow, California

A magnitude 1.6 earthquake struck 1 km SE of Benbow, California on Sat, Dec 27, 1975, 3:12 PM PST (23:12 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M4.1 19 km WNW of Indianola, 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
1.6 (md), micro
Local time
UTC
1975-12-27 23:12:50 UTC
Depth
19.1 km (11.9 mi), shallow
Epicenter
40.056° N, 123.772° 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 5.4 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
310°, 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: 21 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 1.531 km WSW of Ferndale, California · 18537 days ago · 22 km deep · 87 km away
  2. 2.735 km SW of Ferndale, California · 18534 days ago · 29 km deep · 70 km away
  3. 3.013 km N of Alderpoint, California · 18532 days ago · 32 km deep · 29 km away
  4. 2.219 km NW of Mad River, California · 18528 days ago · 24 km deep · 56 km away
  5. 2.36 km E of Willits, California · 18528 days ago · 2 km deep · 84 km away
  6. 4.119 km WNW of Indianola, California · 18516 days ago · 24 km deep · 94 km away
  7. 1.54 km NNW of Fields Landing, California · 18516 days ago · 24 km deep · 87 km away
  8. 1.721 km SSW of Ferndale, California · 18515 days ago · 22 km deep · 62 km away
  9. 2.937 km SW of Ferndale, California · 18515 days ago · 20 km deep · 76 km away
  10. 2.04 km NW of Fields Landing, California · 18515 days ago · 25 km deep · 87 km away
  11. 2.18 km W of Rio Dell, California · 18511 days ago · 20 km deep · 60 km away
  12. 2.115 km E of Redcrest, California · 18510 days ago · 6 km deep · 39 km away
  13. 3.437 km SW of Ferndale, California · 18510 days ago · 24 km deep · 72 km away
  14. 2.111 km S of Ferndale, California · 18509 days ago · 21 km deep · 62 km away
  15. 2.029 km WSW of Ferndale, California · 18507 days ago · 23 km deep · 85 km away
  16. 1.84 km S of McKinleyville, California · 18501 days ago · 18 km deep · 99 km away
  17. 3.65 km ESE of Burnt Ranch, California · 18501 days ago · 22 km deep · 87 km away
  18. 2.722 km SSW of Ferndale, California · 18494 days ago · 17 km deep · 65 km away
  19. 3.614 km SSW of Willits, California · 18488 days ago · 11 km deep · 92 km away
  20. 3.38 km ESE of Laytonville, California · 18483 days ago · 25 km deep · 54 km away
  21. 3.541 km SW of Ferndale, California · 18479 days ago · 33 km deep · 80 km away

Before

  1. 1.564 km SW of Ferndale, California · 18542 days ago · 5 km deep · 93 km away
  2. 2.08 km ENE of Hydesville, California · 18542 days ago · 22 km deep · 62 km away
  3. 1.824 km WSW of Ferndale, California · 18542 days ago · 20 km deep · 78 km away
  4. 1.514 km ENE of Hydesville, California · 18544 days ago · 5 km deep · 59 km away
  5. 2.244 km SSW of Ferndale, California · 18545 days ago · 7 km deep · 68 km away
  6. 1.88 km NW of Mad River, California · 18545 days ago · 6 km deep · 52 km away
  7. 1.732 km SSW of Ferndale, California · 18547 days ago · 22 km deep · 64 km away
  8. 1.528 km SW of Ferndale, CA · 18551 days ago · 26 km deep · 76 km away
  9. 1.930 km SW of Ferndale, California · 18553 days ago · 17 km deep · 72 km away
  10. 2.219 km W of Ferndale, California · 18554 days ago · 23 km deep · 84 km away
  11. 1.84 km ENE of Benbow, California · 18557 days ago · 16 km deep · 4 km away
  12. 1.618 km SSW of Scotia, California · 18558 days ago · 35 km deep · 47 km away
  13. 1.614 km NE of Myers Flat, California · 18559 days ago · 27 km deep · 34 km away
  14. 1.93 km W of Ferndale, California · 18560 days ago · 23 km deep · 74 km away
  15. 3.18 km NNW of Redwood Valley, California · 18560 days ago · 12 km deep · 92 km away
  16. 1.818 km SSW of Willow Creek, California · 18562 days ago · 0 km deep · 82 km away
  17. 2.6near the coast of Northern California · 18564 days ago · 23 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1028107. Read Mon, Sep 28, 2026, 9:12 AM UTC.