California earthquakes

M2.0 earthquake 8 km ENE of Hydesville, California

A magnitude 2.0 earthquake struck 8 km ENE of Hydesville, California on Tue, Dec 23, 1975, 6:19 AM PST (14:19 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M4.6 76 km WSW of Ferndale, California. This one was a foreshock.

Hydesville 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1975-12-23 14:19:22 UTC
Depth
21.9 km (13.6 mi), shallow
Epicenter
40.586° N, 124.014° 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 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
48°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.564 km SW of Ferndale, California · 18546 days ago · 5 km deep · 83 km away
  2. 3.244 km W of Indianola, California · 18543 days ago · 27 km deep · 64 km away
  3. 2.841 km WNW of Ferndale, California · 18542 days ago · 20 km deep · 61 km away
  4. 1.61 km SE of Benbow, California · 18542 days ago · 19 km deep · 62 km away
  5. 1.531 km WSW of Ferndale, California · 18542 days ago · 22 km deep · 52 km away
  6. 2.735 km SW of Ferndale, California · 18539 days ago · 29 km deep · 52 km away
  7. 2.0off the coast of Northern California · 18538 days ago · 5 km deep · 87 km away
  8. 1.577 km WSW of Ferndale, California · 18537 days ago · 12 km deep · 98 km away
  9. 3.013 km N of Alderpoint, California · 18536 days ago · 32 km deep · 45 km away
  10. 2.219 km NW of Mad River, California · 18533 days ago · 24 km deep · 28 km away
  11. 3.012 km NNE of Willow Creek, California · 18523 days ago · 31 km deep · 63 km away
  12. 4.119 km WNW of Indianola, California · 18521 days ago · 24 km deep · 41 km away
  13. 1.54 km NNW of Fields Landing, California · 18520 days ago · 24 km deep · 27 km away
  14. 1.721 km SSW of Ferndale, California · 18520 days ago · 22 km deep · 36 km away
  15. 2.937 km SW of Ferndale, California · 18519 days ago · 20 km deep · 55 km away
  16. 2.04 km NW of Fields Landing, California · 18519 days ago · 25 km deep · 27 km away
  17. 4.676 km WSW of Ferndale, California · 18519 days ago · 7 km deep · 97 km away
  18. 2.164 km W of Ferndale, California · 18517 days ago · 5 km deep · 85 km away
  19. 2.18 km W of Rio Dell, California · 18516 days ago · 20 km deep · 19 km away
  20. 2.115 km E of Redcrest, California · 18515 days ago · 6 km deep · 29 km away
  21. 3.437 km SW of Ferndale, California · 18515 days ago · 24 km deep · 54 km away
  22. 2.111 km S of Ferndale, California · 18513 days ago · 21 km deep · 24 km away
  23. 4.072 km WSW of Ferndale, California · 18513 days ago · 10 km deep · 93 km away
  24. 2.029 km WSW of Ferndale, California · 18512 days ago · 23 km deep · 50 km away
  25. 1.84 km S of McKinleyville, California · 18506 days ago · 18 km deep · 37 km away
  26. 3.65 km ESE of Burnt Ranch, California · 18505 days ago · 22 km deep · 55 km away
  27. 2.722 km SSW of Ferndale, California · 18498 days ago · 17 km deep · 38 km away
  28. 3.977 km W of Ferndale, California · 18497 days ago · 6 km deep · 98 km away

Before

  1. 1.824 km WSW of Ferndale, California · 18547 days ago · 20 km deep · 44 km away
  2. 1.514 km ENE of Hydesville, California · 18548 days ago · 5 km deep · 8 km away
  3. 1.833 km NNE of Willow Creek, California · 18549 days ago · 38 km deep · 83 km away
  4. 2.244 km SSW of Ferndale, California · 18550 days ago · 7 km deep · 59 km away
  5. 1.88 km NW of Mad River, California · 18550 days ago · 6 km deep · 38 km away
  6. 1.732 km SSW of Ferndale, California · 18552 days ago · 22 km deep · 47 km away
  7. 1.528 km SW of Ferndale, CA · 18556 days ago · 26 km deep · 47 km away
  8. 1.930 km SW of Ferndale, California · 18558 days ago · 17 km deep · 48 km away
  9. 2.219 km W of Ferndale, California · 18558 days ago · 23 km deep · 40 km away
  10. 3.562 km W of Ferndale, California · 18558 days ago · 49 km deep · 84 km away
  11. 1.84 km ENE of Benbow, California · 18562 days ago · 16 km deep · 61 km away
  12. 1.618 km SSW of Scotia, California · 18563 days ago · 35 km deep · 32 km away
  13. 1.614 km NE of Myers Flat, California · 18564 days ago · 27 km deep · 34 km away
  14. 1.639 km W of Indianola, California · 18564 days ago · 21 km deep · 60 km away
  15. 1.93 km W of Ferndale, California · 18565 days ago · 23 km deep · 24 km away
  16. 1.818 km SSW of Willow Creek, California · 18566 days ago · 0 km deep · 34 km away
  17. 2.6near the coast of Northern California · 18569 days ago · 23 km deep · 56 km away
  18. 1.841 km W of Ferndale, California · 18569 days ago · 28 km deep · 62 km away
  19. 1.625 km SW of Ferndale, California · 18573 days ago · 22 km deep · 42 km away
  20. 1.815 km W of Ferndale, California · 18574 days ago · 22 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1028038. Read Sat, Oct 3, 2026, 2:20 AM UTC.