California earthquakes

M1.9 earthquake 0km S of Carson, CA

A magnitude 1.9 earthquake struck 0km S of Carson, CA on Tue, Sep 28, 2021, 12:12 AM PDT (07:12 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.6 3km WSW of East Los Angeles, CA. This one was a foreshock.

Carson 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
1.9 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-09-28 07:12:12 UTC
Depth
8.1 km (5.0 mi), shallow
Epicenter
33.828° N, 118.281° W
Felt reports
85
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

85 people reported to the USGS what they felt; the strongest reported shaking was III, 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, 0.5 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
59°
Stations used
71

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 50 in the 60 days after this one and 35 in the 30 days before it.

After

  1. 1.69km NNW of Piru, CA · 1828 days ago · 19 km deep · 89 km away · felt by 1
  2. 1.77km N of Piru, CA · 1828 days ago · 14 km deep · 87 km away
  3. 1.82km E of Carson, CA · 1828 days ago · 9 km deep · 2 km away · felt by 10
  4. 1.93km NNW of Rancho Cucamonga, CA · 1823 days ago · 10 km deep · 73 km away
  5. 1.60km E of Carson, CA · 1822 days ago · 9 km deep · 1 km away · felt by 5
  6. 2.015km S of Port Hueneme, CA · 1821 days ago · 2 km deep · 86 km away
  7. 1.78km ESE of San Pedro, CA · 1819 days ago · 9 km deep · 15 km away · felt by 1
  8. 3.324km SE of Santa Cruz Is. (E end), CA · 1817 days ago · 6 km deep · 98 km away · felt by 17
  9. 1.51km SE of Sylmar, CA · 1814 days ago · 11 km deep · 55 km away
  10. 1.81km SE of Sylmar, CA · 1814 days ago · 11 km deep · 55 km away · felt by 1
  11. 1.54km NW of Fontana, CA · 1812 days ago · 4 km deep · 80 km away
  12. 1.81km S of Commerce, CA · 1812 days ago · 17 km deep · 22 km away · felt by 1
  13. 2.25km N of Moreno Valley, CA · 1811 days ago · 12 km deep · 98 km away · felt by 5
  14. 1.93km WNW of Fontana, CA · 1810 days ago · 7 km deep · 80 km away · felt by 2
  15. 2.41km NW of View Park-Windsor Hills, CA · 1808 days ago · 8 km deep · 21 km away · felt by 250
  16. 1.72km SE of Simi Valley, CA · 1807 days ago · 12 km deep · 63 km away · felt by 1
  17. 1.63km E of Loma Linda, CA · 1807 days ago · 14 km deep · 100 km away
  18. 1.812km WSW of Lake Hughes, CA · 1806 days ago · 10 km deep · 94 km away
  19. 1.95km WSW of Devore, CA · 1806 days ago · 11 km deep · 87 km away
  20. 2.13km SW of San Bernardino, CA · 1806 days ago · 17 km deep · 94 km away
  21. 1.812km WSW of Lake Hughes, CA · 1806 days ago · 9 km deep · 94 km away
  22. 1.713km WNW of Malibu, CA · 1806 days ago · 10 km deep · 65 km away
  23. 3.63km WSW of East Los Angeles, CA · 1805 days ago · 17 km deep · 22 km away · felt by 3,679
  24. 2.03km WSW of East Los Angeles, CA · 1805 days ago · 16 km deep · 22 km away · felt by 90
  25. 1.65km NNE of Fontana, CA · 1805 days ago · 8 km deep · 85 km away · felt by 2
  26. 2.614km W of Malibu, CA · 1803 days ago · 15 km deep · 67 km away · felt by 6
  27. 1.77km NW of Lakeland Village, CA · 1803 days ago · 8 km deep · 83 km away
  28. 2.03km SE of Loma Linda, CA · 1801 days ago · 17 km deep · 99 km away
  29. 1.62km ESE of Lawndale, CA · 1801 days ago · 11 km deep · 8 km away
  30. 1.63km N of Sylmar, CA · 1801 days ago · 3 km deep · 58 km away
  31. 1.62km ESE of Anaheim, CA · 1799 days ago · 5 km deep · 39 km away
  32. 1.62km ESE of Anaheim, CA · 1799 days ago · 6 km deep · 38 km away
  33. 1.62km SSW of Sherman Oaks, CA · 1798 days ago · 6 km deep · 38 km away · felt by 6
  34. 2.111km SSW of Rancho Palos Verdes, CA · 1797 days ago · 11 km deep · 24 km away
  35. 2.58km NNW of Malibu, CA · 1796 days ago · 13 km deep · 58 km away · felt by 20
  36. 1.62km SSE of Chatsworth, CA · 1794 days ago · 5 km deep · 54 km away · felt by 1
  37. 1.84km WSW of East Los Angeles, CA · 1792 days ago · 16 km deep · 22 km away
  38. 1.61km SE of Sylmar, CA · 1788 days ago · 10 km deep · 55 km away · felt by 1
  39. 1.64km NNE of Diamond Bar, CA · 1787 days ago · 4 km deep · 51 km away · felt by 5
  40. 2.24km W of Pomona, CA · 1786 days ago · 4 km deep · 52 km away · felt by 42
  41. 2.15km W of Devore, CA · 1783 days ago · 12 km deep · 88 km away · felt by 3
  42. 1.74km NNE of Moreno Valley, CA · 1783 days ago · 14 km deep · 99 km away · felt by 1
  43. 1.77km SE of San Pedro, CA · 1781 days ago · 8 km deep · 15 km away
  44. 1.87km ESE of San Pedro, CA · 1781 days ago · 11 km deep · 14 km away · felt by 1
  45. 1.52km SSW of San Dimas, CA · 1780 days ago · 14 km deep · 52 km away
  46. 1.930km SE of Santa Cruz Is. (E end), CA · 1780 days ago · 1 km deep · 92 km away
  47. 1.63km WNW of Sylmar, CA · 1779 days ago · 3 km deep · 57 km away · felt by 5
  48. 2.220km S of Port Hueneme, CA · 1779 days ago · 11 km deep · 83 km away
  49. 2.119km NNE of Avalon, CA · 1779 days ago · 1 km deep · 36 km away
  50. 2.30km SSE of San Fernando, CA · 1773 days ago · 3 km deep · 53 km away · felt by 27

Before

  1. 1.52km E of Carson, CA · 1832 days ago · 8 km deep · 2 km away · felt by 9
  2. 1.85km NNW of Glen Avon, CA · 1832 days ago · 5 km deep · 75 km away · felt by 3
  3. 2.39km N of Rancho Cucamonga, CA · 1834 days ago · 8 km deep · 78 km away · felt by 1
  4. 2.09km SW of Lytle Creek, CA · 1834 days ago · 8 km deep · 78 km away
  5. 1.86km WNW of Wrightwood, CA · 1835 days ago · 7 km deep · 82 km away
  6. 1.97km ESE of San Pedro, CA · 1835 days ago · 9 km deep · 14 km away
  7. 2.61km ESE of Carson, CA · 1836 days ago · 7 km deep · 1 km away · felt by 762
  8. 1.64km SE of Rancho Cucamonga, CA · 1839 days ago · 14 km deep · 74 km away
  9. 1.62km E of Carson, CA · 1839 days ago · 9 km deep · 2 km away · felt by 14
  10. 1.612km WNW of Malibu, CA · 1840 days ago · 11 km deep · 64 km away
  11. 2.50km ESE of Carson, CA · 1841 days ago · 11 km deep · 0 km away · felt by 160
  12. 2.02km SE of Carson, CA · 1841 days ago · 11 km deep · 2 km away · felt by 70
  13. 2.82km ESE of Carson, CA · 1842 days ago · 11 km deep · 2 km away · felt by 411
  14. 4.32km E of Carson, CA · 1842 days ago · 12 km deep · 2 km away · felt by 10,301 · tsunami flag
  15. 2.35km NE of Wildomar, CA · 1842 days ago · 14 km deep · 99 km away · felt by 7
  16. 1.629km WSW of Camp Pendleton South, CA · 1844 days ago · 11 km deep · 98 km away
  17. 2.38km SSW of Pearblossom, CA · 1845 days ago · 8 km deep · 75 km away · felt by 3
  18. 2.91km NNE of San Fernando, CA · 1845 days ago · 7 km deep · 54 km away · felt by 400
  19. 2.92km SSE of Lytle Creek, CA · 1845 days ago · 8 km deep · 86 km away · felt by 59
  20. 1.85km NE of Wildomar, CA · 1846 days ago · 15 km deep · 98 km away · felt by 4

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci39820943. Read Sun, Oct 4, 2026, 1:08 AM UTC.