California earthquakes

M1.8 earthquake 20km NW of Parkfield, CA

A magnitude 1.8 earthquake struck 20km NW of Parkfield, CA on Fri, Aug 28, 2020, 3:38 PM PDT (22:38 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.5 2km ENE of Lopez Point, CA. 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2020-08-28 22:38:00 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
36.025° N, 120.589° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.29
Depth from
From location
Station coverage gap
118°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 92 in the 60 days after this one and 54 in the 30 days before it.

After

  1. 1.54km E of Avila Beach, CA · 2227 days ago · 6 km deep · 95 km away
  2. 1.814km S of Tres Pinos, CA · 2227 days ago · 4 km deep · 95 km away
  3. 2.212km NW of Pinnacles, CA · 2225 days ago · 5 km deep · 87 km away
  4. 2.35km ENE of Pinnacles, CA · 2225 days ago · 10 km deep · 74 km away
  5. 2.515km SSW of Kettleman City, CA · 2225 days ago · 10 km deep · 56 km away
  6. 1.58km N of Pinnacles, CA · 2224 days ago · 8 km deep · 80 km away
  7. 2.916km SW of Cantua Creek, CA · 2224 days ago · 9 km deep · 43 km away
  8. 1.712km NNE of Cayucos, CA · 2224 days ago · 5 km deep · 59 km away
  9. 2.222km NE of San Ardo, CA · 2224 days ago · 8 km deep · 21 km away
  10. 1.712km SE of Pinnacles, CA · 2223 days ago · 8 km deep · 64 km away
  11. 1.623km WSW of New Idria, CA · 2221 days ago · 6 km deep · 44 km away
  12. 1.520km ESE of Tres Pinos, CA · 2221 days ago · 6 km deep · 91 km away · felt by 1
  13. 1.816km NNW of Lopez Point, CA · 2220 days ago · 16 km deep · 93 km away
  14. 1.67km NNW of Pinnacles, CA · 2220 days ago · 4 km deep · 82 km away
  15. 2.68km NW of Parkfield, CA · 2218 days ago · 10 km deep · 12 km away
  16. 1.816km SSE of Tres Pinos, CA · 2218 days ago · 4 km deep · 93 km away
  17. 2.28km NW of Pinnacles, CA · 2217 days ago · 7 km deep · 83 km away
  18. 1.826km NNW of San Simeon, CA · 2216 days ago · 10 km deep · 71 km away
  19. 2.42km NNE of Pinnacles, CA · 2215 days ago · 6 km deep · 76 km away · felt by 1
  20. 2.32km NNE of Pinnacles, CA · 2215 days ago · 6 km deep · 76 km away · felt by 2
  21. 1.811km NNE of Avenal, CA · 2215 days ago · 7 km deep · 45 km away
  22. 1.910km SSE of Parkfield, CA · 2215 days ago · 6 km deep · 29 km away
  23. 1.710km SSE of Parkfield, CA · 2214 days ago · 6 km deep · 30 km away
  24. 2.37km SSW of Riverdale, CA · 2212 days ago · 19 km deep · 74 km away
  25. 3.017km SE of Kettleman City, CA · 2212 days ago · 14 km deep · 68 km away · felt by 3
  26. 1.716km SSE of Kettleman City, CA · 2212 days ago · 10 km deep · 65 km away
  27. 2.415km SSE of Kettleman City, CA · 2212 days ago · 9 km deep · 65 km away
  28. 1.717km SSE of Kettleman City, CA · 2212 days ago · 9 km deep · 64 km away
  29. 2.716km SSE of Tres Pinos, CA · 2208 days ago · 4 km deep · 93 km away · felt by 1
  30. 2.816km SSE of Tres Pinos, CA · 2208 days ago · 4 km deep · 93 km away · felt by 6
  31. 1.84km WNW of Kettleman City, CA · 2206 days ago · -1 km deep · 52 km away
  32. 2.14km NNW of Pinnacles, CA · 2205 days ago · 7 km deep · 79 km away
  33. 1.910km SSW of New Idria, CA · 2205 days ago · 12 km deep · 35 km away · felt by 2
  34. 2.19km N of Pinnacles, CA · 2205 days ago · 14 km deep · 81 km away
  35. 2.414km S of Tres Pinos, CA · 2205 days ago · 4 km deep · 95 km away · felt by 3
  36. 2.724km ENE of San Ardo, CA · 2204 days ago · 3 km deep · 8 km away
  37. 1.816km NW of Parkfield, CA · 2203 days ago · 3 km deep · 4 km away
  38. 2.210km SE of Pinnacles, CA · 2203 days ago · 9 km deep · 66 km away
  39. 2.010km ESE of Huron, CA · 2202 days ago · 2 km deep · 56 km away
  40. 2.023km NNE of Nipomo, CA · 2201 days ago · 6 km deep · 91 km away · felt by 1
  41. 1.912km S of Tres Pinos, CA · 2201 days ago · 10 km deep · 97 km away
  42. 1.711km E of Coalinga, CA · 2201 days ago · 7 km deep · 34 km away · felt by 3
  43. 1.914km NW of Parkfield, CA · 2199 days ago · 3 km deep · 6 km away
  44. 2.67km NNW of Pinnacles, CA · 2196 days ago · 5 km deep · 82 km away · felt by 4
  45. 1.822km N of San Simeon, CA · 2195 days ago · 11 km deep · 54 km away
  46. 2.012km SE of Pinnacles, CA · 2195 days ago · 3 km deep · 64 km away
  47. 1.52km NNE of Pinnacles, CA · 2193 days ago · 9 km deep · 76 km away
  48. 1.55km ESE of Pinnacles, CA · 2193 days ago · 6 km deep · 71 km away
  49. 2.27km NNE of Pinnacles, CA · 2192 days ago · 8 km deep · 79 km away
  50. 1.58km NNE of Pinnacles, CA · 2192 days ago · 7 km deep · 79 km away
  51. 1.522km NW of Parkfield, CA · 2191 days ago · 3 km deep · 2 km away
  52. 2.08km NW of Pinnacles, CA · 2191 days ago · 8 km deep · 83 km away
  53. 2.011km NW of Pinnacles, CA · 2190 days ago · 6 km deep · 86 km away · felt by 2
  54. 1.716km NNW of San Simeon, CA · 2190 days ago · 12 km deep · 64 km away
  55. 1.918km NW of Parkfield, CA · 2189 days ago · 5 km deep · 3 km away
  56. 1.84km N of Pinnacles, CA · 2189 days ago · 8 km deep · 78 km away · felt by 1
  57. 2.516km W of Cantua Creek, CA · 2188 days ago · 13 km deep · 51 km away
  58. 1.710km NW of Pinnacles, CA · 2188 days ago · 8 km deep · 86 km away
  59. 1.86km N of New Idria, CA · 2188 days ago · 8 km deep · 50 km away
  60. 1.54km NNW of Pinnacles, CA · 2186 days ago · 7 km deep · 78 km away

The first 60 of 92.

Before

  1. 2.25km ENE of Pinnacles, CA · 2228 days ago · 10 km deep · 74 km away
  2. 1.822km SSE of Kettleman City, CA · 2228 days ago · 8 km deep · 70 km away
  3. 2.316km SSE of Tres Pinos, CA · 2229 days ago · 3 km deep · 93 km away · felt by 2
  4. 2.32km NE of Pinnacles, CA · 2229 days ago · 3 km deep · 76 km away
  5. 1.926km NW of San Simeon, CA · 2229 days ago · 3 km deep · 78 km away
  6. 1.64km SW of Paso Robles, CA · 2230 days ago · 8 km deep · 48 km away
  7. 1.87km SSW of Gonzales, CA · 2230 days ago · 8 km deep · 92 km away
  8. 1.69km NNE of Gonzales, CA · 2231 days ago · 1 km deep · 97 km away
  9. 1.716km SSE of Kettleman City, CA · 2231 days ago · 8 km deep · 65 km away
  10. 2.77km ESE of Huron, CA · 2232 days ago · 3 km deep · 52 km away · felt by 2
  11. 2.18km NNW of Cholame, CA · 2232 days ago · 8 km deep · 35 km away
  12. 1.82km E of Cholame, CA · 2233 days ago · 10 km deep · 44 km away
  13. 1.825km NW of San Simeon, CA · 2234 days ago · 7 km deep · 75 km away
  14. 2.322km NE of San Ardo, CA · 2235 days ago · 9 km deep · 21 km away
  15. 3.122km NE of San Ardo, CA · 2235 days ago · 9 km deep · 21 km away · felt by 6
  16. 2.111km NE of San Simeon, CA · 2236 days ago · 8 km deep · 58 km away
  17. 1.612km SE of Pinnacles, CA · 2236 days ago · 6 km deep · 63 km away
  18. 2.610km SE of Pinnacles, CA · 2236 days ago · 7 km deep · 65 km away · felt by 1
  19. 2.517km SSE of Kettleman City, CA · 2237 days ago · 14 km deep · 65 km away
  20. 2.810km NW of Parkfield, CA · 2237 days ago · 11 km deep · 9 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73450821. Read Sun, Oct 4, 2026, 10:55 AM UTC.