California earthquakes

M1.8 earthquake 4km NW of Silver Lake, CA

A magnitude 1.8 earthquake struck 4km NW of Silver Lake, CA on Mon, Aug 30, 2021, 1:47 AM PDT (08:47 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.3 2km E of Carson, 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 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-08-30 08:47:57 UTC
Depth
10.7 km (6.7 mi), shallow
Epicenter
34.119° N, 118.288° W
Felt reports
3
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

3 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
39°
Stations used
64

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 64 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 1.64km N of Fontana, CA · 1860 days ago · 6 km deep · 76 km away · felt by 2
  2. 1.74km N of Fontana, CA · 1860 days ago · 7 km deep · 76 km away
  3. 1.72km ESE of Loma Linda, CA · 1860 days ago · 14 km deep · 97 km away
  4. 2.03km E of Loma Linda, CA · 1858 days ago · 14 km deep · 98 km away
  5. 1.91km SSW of Malibu, CA · 1857 days ago · 13 km deep · 50 km away · felt by 2
  6. 1.730km SW of Dana Point, CA · 1856 days ago · 14 km deep · 94 km away
  7. 1.72km NNW of Inglewood, CA · 1856 days ago · 8 km deep · 18 km away · felt by 11
  8. 2.030km SW of Dana Point, CA · 1855 days ago · 13 km deep · 95 km away · felt by 2
  9. 1.66km S of Frazier Park, CA · 1855 days ago · 14 km deep · 95 km away
  10. 1.64km SW of Highland, CA · 1855 days ago · 9 km deep · 96 km away
  11. 1.64km NE of Whittier, CA · 1854 days ago · 29 km deep · 29 km away
  12. 2.85km SSE of Malibu Beach, CA · 1853 days ago · 12 km deep · 39 km away · felt by 17
  13. 2.65km SE of Loma Linda, CA · 1851 days ago · 15 km deep · 98 km away · felt by 5
  14. 2.65km NNE of Fontana, CA · 1850 days ago · 7 km deep · 78 km away · felt by 16
  15. 1.65km NNE of Fontana, CA · 1850 days ago · 7 km deep · 78 km away
  16. 2.63km NNW of La Verne, CA · 1849 days ago · 6 km deep · 47 km away · felt by 50
  17. 3.65km NNW of Thousand Oaks, CA · 1846 days ago · 2 km deep · 57 km away · felt by 2,275
  18. 2.92km SSE of Lytle Creek, CA · 1845 days ago · 8 km deep · 75 km away · felt by 59
  19. 2.91km NNE of San Fernando, CA · 1845 days ago · 7 km deep · 24 km away · felt by 400
  20. 2.38km SSW of Pearblossom, CA · 1844 days ago · 8 km deep · 48 km away · felt by 3
  21. 4.32km E of Carson, CA · 1842 days ago · 12 km deep · 32 km away · felt by 10,301 · tsunami flag
  22. 2.82km ESE of Carson, CA · 1842 days ago · 11 km deep · 33 km away · felt by 411
  23. 2.02km SE of Carson, CA · 1841 days ago · 11 km deep · 33 km away · felt by 70
  24. 2.50km ESE of Carson, CA · 1840 days ago · 11 km deep · 32 km away · felt by 160
  25. 1.612km WNW of Malibu, CA · 1839 days ago · 11 km deep · 59 km away
  26. 1.62km E of Carson, CA · 1839 days ago · 9 km deep · 32 km away · felt by 14
  27. 1.64km SE of Rancho Cucamonga, CA · 1838 days ago · 14 km deep · 68 km away
  28. 2.61km ESE of Carson, CA · 1836 days ago · 7 km deep · 32 km away · felt by 762
  29. 1.97km ESE of San Pedro, CA · 1835 days ago · 9 km deep · 46 km away
  30. 1.86km WNW of Wrightwood, CA · 1834 days ago · 7 km deep · 62 km away
  31. 2.09km SW of Lytle Creek, CA · 1834 days ago · 8 km deep · 67 km away
  32. 2.39km N of Rancho Cucamonga, CA · 1834 days ago · 8 km deep · 67 km away · felt by 1
  33. 1.85km NNW of Glen Avon, CA · 1832 days ago · 5 km deep · 72 km away · felt by 3
  34. 1.52km E of Carson, CA · 1832 days ago · 8 km deep · 32 km away · felt by 9
  35. 1.90km S of Carson, CA · 1832 days ago · 8 km deep · 32 km away · felt by 85
  36. 1.610km NNE of Ventura, CA · 1831 days ago · 2 km deep · 87 km away · felt by 1
  37. 1.69km NNW of Piru, CA · 1828 days ago · 19 km deep · 65 km away · felt by 1
  38. 1.77km N of Piru, CA · 1828 days ago · 14 km deep · 62 km away
  39. 1.82km E of Carson, CA · 1827 days ago · 9 km deep · 32 km away · felt by 10
  40. 1.93km NNW of Rancho Cucamonga, CA · 1823 days ago · 10 km deep · 64 km away
  41. 1.60km E of Carson, CA · 1822 days ago · 9 km deep · 32 km away · felt by 5
  42. 2.015km S of Port Hueneme, CA · 1820 days ago · 2 km deep · 83 km away
  43. 1.78km ESE of San Pedro, CA · 1819 days ago · 9 km deep · 47 km away · felt by 1
  44. 1.517km ENE of Lebec, CA · 1815 days ago · 9 km deep · 96 km away
  45. 1.51km SE of Sylmar, CA · 1814 days ago · 11 km deep · 25 km away
  46. 1.81km SE of Sylmar, CA · 1814 days ago · 11 km deep · 25 km away · felt by 1
  47. 1.54km NW of Fontana, CA · 1812 days ago · 4 km deep · 74 km away
  48. 1.81km S of Commerce, CA · 1812 days ago · 17 km deep · 18 km away · felt by 1
  49. 2.25km N of Moreno Valley, CA · 1811 days ago · 12 km deep · 99 km away · felt by 5
  50. 1.93km WNW of Fontana, CA · 1809 days ago · 7 km deep · 74 km away · felt by 2
  51. 2.41km NW of View Park-Windsor Hills, CA · 1808 days ago · 8 km deep · 14 km away · felt by 250
  52. 1.72km SE of Simi Valley, CA · 1807 days ago · 12 km deep · 43 km away · felt by 1
  53. 1.63km E of Loma Linda, CA · 1807 days ago · 14 km deep · 98 km away
  54. 1.812km WSW of Lake Hughes, CA · 1806 days ago · 10 km deep · 64 km away
  55. 1.95km WSW of Devore, CA · 1806 days ago · 11 km deep · 77 km away
  56. 2.13km SW of San Bernardino, CA · 1806 days ago · 17 km deep · 89 km away
  57. 1.812km WSW of Lake Hughes, CA · 1806 days ago · 9 km deep · 64 km away
  58. 1.713km WNW of Malibu, CA · 1806 days ago · 10 km deep · 60 km away
  59. 3.63km WSW of East Los Angeles, CA · 1805 days ago · 17 km deep · 14 km away · felt by 3,679
  60. 2.03km WSW of East Los Angeles, CA · 1805 days ago · 16 km deep · 14 km away · felt by 90

The first 60 of 64.

Before

  1. 1.56km S of Pearblossom, CA · 1862 days ago · 9 km deep · 51 km away · felt by 1
  2. 1.78km E of Ojai, CA · 1862 days ago · 13 km deep · 87 km away
  3. 1.83km SSE of Garden Grove, CA · 1862 days ago · 15 km deep · 51 km away
  4. 1.83km SSE of Devore, CA · 1866 days ago · 12 km deep · 83 km away
  5. 1.712km WSW of Ventura, CA · 1867 days ago · 10 km deep · 99 km away
  6. 1.916km NNE of Avalon, CA · 1868 days ago · 17 km deep · 72 km away
  7. 1.64km N of Rancho Cucamonga, CA · 1869 days ago · 11 km deep · 66 km away
  8. 1.55km NNE of Fontana, CA · 1873 days ago · 7 km deep · 78 km away
  9. 1.81km NNW of La Puente, CA · 1874 days ago · 9 km deep · 32 km away
  10. 2.53km WSW of Fontana, CA · 1878 days ago · 9 km deep · 73 km away · felt by 83
  11. 2.013km SSE of Malibu Beach, CA · 1880 days ago · 10 km deep · 40 km away
  12. 1.53km SSE of Piru, CA · 1883 days ago · 10 km deep · 55 km away
  13. 1.65km WNW of Muscoy, CA · 1885 days ago · 11 km deep · 83 km away
  14. 1.52km WSW of Costa Mesa, CA · 1886 days ago · 10 km deep · 61 km away
  15. 1.910km SSW of Rancho Palos Verdes, CA · 1888 days ago · 0 km deep · 53 km away
  16. 1.62km ENE of Colton, CA · 1890 days ago · 16 km deep · 91 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci40026992. Read Sat, Oct 3, 2026, 7:52 PM UTC.