California earthquakes

M1.5 earthquake 10 km N of Hayfork, California

A magnitude 1.5 earthquake struck 10 km N of Hayfork, California on Mon, Jan 3, 1977, 2:40 PM PST (22:40 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.3 3 km S of Ruth, California. This one was a foreshock.

Hayfork 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1977-01-03 22:40:08 UTC
Depth
17.6 km (11.0 mi), shallow
Epicenter
40.645° N, 123.196° 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, 2.7 km in depth
Depth from
From location
Station coverage gap
302°, 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: 38 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.620 km SW of Scotia, California · 18168 days ago · 32 km deep · 97 km away
  2. 2.211 km SW of Willow Creek, California · 18162 days ago · 23 km deep · 50 km away
  3. 2.86 km E of Pine Hills, California · 18161 days ago · 25 km deep · 75 km away
  4. 3.25 km ENE of Mad River, California · 18157 days ago · 38 km deep · 29 km away
  5. 1.66 km ESE of Hydesville, California · 18156 days ago · 21 km deep · 72 km away
  6. 2.016 km SW of Scotia, California · 18156 days ago · 21 km deep · 93 km away
  7. 2.15 km NNW of Manila, California · 18153 days ago · 19 km deep · 88 km away
  8. 2.84 km NNW of Manila, California · 18153 days ago · 18 km deep · 88 km away
  9. 2.56 km NW of Manila, California · 18153 days ago · 18 km deep · 89 km away
  10. 2.26 km NW of Manila, California · 18153 days ago · 18 km deep · 90 km away
  11. 3.33 km S of Ruth, California · 18151 days ago · 37 km deep · 47 km away
  12. 3.012 km SE of Burnt Ranch, California · 18151 days ago · 21 km deep · 18 km away
  13. 1.52 km W of Phillipsville, California · 18150 days ago · 22 km deep · 71 km away
  14. 2.34 km NE of Arcata, California · 18148 days ago · 20 km deep · 77 km away
  15. 2.57 km N of Weaverville, California · 18148 days ago · 10 km deep · 28 km away
  16. 2.110 km SSW of Scotia, California · 18147 days ago · 30 km deep · 86 km away
  17. 2.41 km W of Eureka, California · 18144 days ago · 17 km deep · 85 km away
  18. 1.77 km SE of Pine Hills, California · 18144 days ago · 20 km deep · 75 km away
  19. 1.710 km S of Ferndale, California · 18142 days ago · 4 km deep · 92 km away
  20. 2.410 km S of Ferndale, California · 18142 days ago · 5 km deep · 91 km away
  21. 1.611 km S of Ferndale, California · 18142 days ago · 4 km deep · 92 km away
  22. 2.610 km S of Ferndale, California · 18142 days ago · 4 km deep · 90 km away
  23. 1.610 km S of Ferndale, California · 18141 days ago · 3 km deep · 92 km away
  24. 2.510 km S of Ferndale, California · 18141 days ago · 5 km deep · 91 km away
  25. 2.310 km S of Ferndale, California · 18141 days ago · 3 km deep · 91 km away
  26. 2.110 km S of Ferndale, California · 18141 days ago · 4 km deep · 90 km away
  27. 1.610 km S of Ferndale, California · 18141 days ago · 2 km deep · 91 km away
  28. 1.76 km WSW of Trinidad, California · 18140 days ago · 18 km deep · 95 km away
  29. 2.625 km ENE of Hydesville, California · 18139 days ago · 27 km deep · 53 km away
  30. 1.57 km WSW of Rio Dell, California · 18138 days ago · 20 km deep · 86 km away
  31. 2.410 km SW of Hayfork, California · 18137 days ago · 39 km deep · 19 km away
  32. 2.414 km SE of Alderpoint, California · 18133 days ago · -1 km deep · 67 km away
  33. 2.313 km ESE of Ruth, California · 18133 days ago · 3 km deep · 45 km away
  34. 2.55 km NW of Alderpoint, California · 18132 days ago · 4 km deep · 62 km away
  35. 1.626 km W of Hyampom, California · 18127 days ago · 44 km deep · 48 km away
  36. 2.74 km NE of Arcata, California · 18125 days ago · 20 km deep · 77 km away
  37. 2.522 km WSW of Weott, California · 18125 days ago · 4 km deep · 94 km away
  38. 1.720 km WSW of Scotia, California · 18122 days ago · 30 km deep · 98 km away

Before

  1. 1.714 km NE of Redcrest, California · 18173 days ago · 21 km deep · 56 km away
  2. 1.60 km NW of Willow Creek, California · 18178 days ago · 21 km deep · 50 km away
  3. 1.717 km SW of Scotia, California · 18178 days ago · 30 km deep · 93 km away
  4. 1.812 km N of Redcrest, California · 18185 days ago · 24 km deep · 65 km away
  5. 1.62 km ENE of Westhaven-Moonstone, California · 18187 days ago · 19 km deep · 87 km away
  6. 2.413 km WSW of Scotia, California · 18187 days ago · 20 km deep · 92 km away
  7. 1.70 km NNW of Fields Landing, California · 18188 days ago · 9 km deep · 87 km away
  8. 3.224 km NNE of Covelo, California · 18195 days ago · 40 km deep · 74 km away
  9. 1.97 km W of Ferndale, California · 18195 days ago · 23 km deep · 98 km away
  10. 1.811 km WSW of Rio Dell, California · 18197 days ago · 23 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1033087. Read Fri, Oct 2, 2026, 1:33 AM UTC.