California earthquakes

M1.5 earthquake 8 km NNW of Redcrest, California

A magnitude 1.5 earthquake struck 8 km NNW of Redcrest, California on Mon, Mar 21, 1977, 3:02 PM PST (23:02 UTC), 28 km (18 mi) below the surface.

A larger quake followed: M4.1 49 km WSW of Ferndale, 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1977-03-21 23:02:55 UTC
Depth
28.3 km (17.6 mi), shallow
Epicenter
40.471° N, 123.970° 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 0.6 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
144°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 79 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 2.668 km W of Ferndale, California · 18091 days ago · 5 km deep · 93 km away
  2. 1.58 km SSW of Hayfork, California · 18090 days ago · 3 km deep · 62 km away
  3. 2.214 km E of Mad River, California · 18090 days ago · 28 km deep · 54 km away
  4. 2.132 km W of Ferndale, California · 18090 days ago · 31 km deep · 59 km away
  5. 2.615 km W of Junction City, California · 18089 days ago · 13 km deep · 69 km away
  6. 2.145 km WSW of Ferndale, California · 18088 days ago · 14 km deep · 66 km away
  7. 1.512 km N of Junction City, California · 18086 days ago · 0 km deep · 87 km away
  8. 2.050 km W of Indianola, California · 18086 days ago · 25 km deep · 78 km away
  9. 1.711 km NNW of Mad River, California · 18086 days ago · 2 km deep · 34 km away
  10. 2.617 km E of Big Lagoon, California · 18084 days ago · 21 km deep · 76 km away
  11. 2.511 km W of Samoa, California · 18084 days ago · 25 km deep · 49 km away
  12. 1.611 km NNW of Mad River, California · 18083 days ago · 2 km deep · 34 km away
  13. 2.419 km SW of Ferndale, California · 18083 days ago · 23 km deep · 41 km away
  14. 2.116 km W of Samoa, California · 18082 days ago · 22 km deep · 52 km away
  15. 3.610 km NE of Hydesville, California · 18080 days ago · 22 km deep · 16 km away
  16. 2.711 km NE of Hydesville, California · 18080 days ago · 22 km deep · 16 km away
  17. 3.136 km WNW of Big Lagoon, California · 18080 days ago · 17 km deep · 98 km away
  18. 3.011 km NE of Hydesville, California · 18079 days ago · 21 km deep · 16 km away
  19. 1.919 km W of Ferndale, California · 18079 days ago · 20 km deep · 46 km away
  20. 3.023 km WSW of Ferndale, California · 18078 days ago · 22 km deep · 45 km away
  21. 1.53 km SW of Mad River, California · 18078 days ago · 28 km deep · 37 km away
  22. 1.74 km WSW of Scotia, California · 18078 days ago · 23 km deep · 15 km away
  23. 2.627 km SSW of Ferndale, California · 18078 days ago · 27 km deep · 40 km away
  24. 1.517 km SSE of Blue Lake, California · 18077 days ago · 24 km deep · 31 km away
  25. 1.526 km SW of Ferndale, California · 18076 days ago · 19 km deep · 47 km away
  26. 2.89 km ESE of Douglas City, California · 18075 days ago · 4 km deep · 96 km away
  27. 2.68 km N of Hayfork, California · 18075 days ago · 10 km deep · 68 km away
  28. 1.845 km WNW of Indianola, California · 18075 days ago · 20 km deep · 75 km away
  29. 1.77 km W of Rio Dell, California · 18075 days ago · 18 km deep · 19 km away
  30. 1.832 km WSW of Ferndale, California · 18075 days ago · 21 km deep · 53 km away
  31. 3.19 km SSW of Junction City, California · 18074 days ago · 52 km deep · 77 km away
  32. 2.412 km N of Hayfork, California · 18074 days ago · 2 km deep · 70 km away
  33. 1.510 km NNE of Hayfork, California · 18073 days ago · 5 km deep · 72 km away
  34. 2.040 km WSW of Ferndale, California · 18073 days ago · 17 km deep · 60 km away
  35. 3.039 km WSW of Ferndale, California · 18072 days ago · 19 km deep · 63 km away
  36. 4.149 km WSW of Ferndale, California · 18071 days ago · 28 km deep · 72 km away
  37. 3.550 km WSW of Ferndale, California · 18071 days ago · 25 km deep · 73 km away
  38. 1.715 km NE of Myers Flat, California · 18069 days ago · 27 km deep · 23 km away
  39. 1.614 km ENE of Hyampom, California · 18069 days ago · 4 km deep · 61 km away
  40. 2.34 km ESE of Pine Hills, California · 18068 days ago · 24 km deep · 30 km away
  41. 2.730 km SW of Ferndale, California · 18067 days ago · 28 km deep · 50 km away
  42. 2.528 km SSW of Ferndale, California · 18067 days ago · 19 km deep · 38 km away
  43. 1.84 km SW of Indianola, California · 18066 days ago · 23 km deep · 33 km away
  44. 2.312 km SE of Alderpoint, California · 18066 days ago · 26 km deep · 57 km away
  45. 2.031 km SW of Ferndale, California · 18066 days ago · 23 km deep · 46 km away
  46. 2.53 km SW of Garberville, California · 18066 days ago · 14 km deep · 45 km away
  47. 2.527 km SSW of Ferndale, California · 18065 days ago · 25 km deep · 40 km away
  48. 2.310 km S of Ferndale, California · 18061 days ago · 19 km deep · 26 km away
  49. 2.2near the coast of Northern California · 18061 days ago · 21 km deep · 38 km away
  50. 1.940 km WNW of Indianola, California · 18061 days ago · 21 km deep · 71 km away
  51. 1.86 km WNW of Ferndale, California · 18058 days ago · 26 km deep · 34 km away
  52. 1.79 km W of Indianola, California · 18057 days ago · 22 km deep · 39 km away
  53. 3.227 km SSW of Ferndale, California · 18057 days ago · 20 km deep · 37 km away
  54. 2.740 km SSW of Ferndale, California · 18054 days ago · 13 km deep · 51 km away
  55. 1.832 km WSW of Ferndale, California · 18054 days ago · 25 km deep · 56 km away
  56. 2.314 km SW of Mad River, California · 18052 days ago · 11 km deep · 30 km away
  57. 3.021 km WSW of Weott, California · 18052 days ago · 7 km deep · 31 km away
  58. 2.523 km SSW of Ferndale, California · 18050 days ago · 24 km deep · 38 km away
  59. 2.252 km W of Ferndale, California · 18048 days ago · 2 km deep · 79 km away
  60. 1.839 km WSW of Ferndale, California · 18047 days ago · 5 km deep · 62 km away

The first 60 of 79.

Before

  1. 2.410 km WNW of Ferndale, California · 18092 days ago · 24 km deep · 38 km away
  2. 2.623 km SW of Ferndale, California · 18093 days ago · 23 km deep · 44 km away
  3. 1.618 km W of Ferndale, California · 18094 days ago · 21 km deep · 44 km away
  4. 2.214 km SSW of Mad River, California · 18096 days ago · 28 km deep · 38 km away
  5. 2.054 km W of Ferndale, California · 18096 days ago · 42 km deep · 80 km away
  6. 1.525 km W of Hyampom, California · 18098 days ago · 8 km deep · 24 km away
  7. 1.924 km W of Hyampom, California · 18098 days ago · 7 km deep · 25 km away
  8. 1.516 km SSW of Ferndale, California · 18101 days ago · 30 km deep · 33 km away
  9. 2.137 km WSW of Ferndale, California · 18105 days ago · 27 km deep · 59 km away
  10. 1.7near the coast of Northern California · 18106 days ago · 18 km deep · 35 km away
  11. 2.246 km WNW of Fields Landing, California · 18107 days ago · 23 km deep · 77 km away
  12. 1.73 km S of Scotia, California · 18107 days ago · 8 km deep · 11 km away
  13. 3.31 km ENE of Burnt Ranch, California · 18108 days ago · 22 km deep · 58 km away
  14. 1.824 km SE of Blue Lake, California · 18109 days ago · 22 km deep · 30 km away
  15. 1.622 km SW of Ferndale, California · 18112 days ago · 24 km deep · 40 km away
  16. 2.2near the coast of Northern California · 18115 days ago · 22 km deep · 54 km away
  17. 3.027 km SW of Ferndale, California · 18117 days ago · 26 km deep · 47 km away
  18. 1.819 km WSW of Ferndale, California · 18117 days ago · 19 km deep · 42 km away
  19. 1.830 km WNW of Ferndale, California · 18119 days ago · 20 km deep · 58 km away
  20. 1.941 km W of Ferndale, California · 18120 days ago · 20 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1034485. Read Fri, Oct 2, 2026, 5:31 PM UTC.