M4.3 earthquake 1km SSE of Paramount, CA

Magnitude

4.3 (ml), light

Local time

Sat, Mar 11, 1933, 6:57 AM GMT-8

UTC

1933-03-11 14:57:37 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

33.885° N, 118.157° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.28

Depth from

Operator assigned

Station coverage gap

214°, poorly surrounded by stations

Stations used

4

• Paramount, CaliforniaPopulation 55,412. Forecast1 kmSSE
• Downey, CaliforniaPopulation 114,219. Forecast7 kmSSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast20 kmSSE

After

1. 4.32km SSW of Westminster, CASat, Mar 11, 7:10 AM GMT-8 · 34170 days ago · 6 km deep · 20 km away
2. 3.62km ENE of Seal Beach, CASat, Mar 11, 7:36 AM GMT-8 · 34170 days ago · 6 km deep · 16 km away
3. 3.72km ENE of Seal Beach, CASat, Mar 11, 7:47 AM GMT-8 · 34170 days ago · 6 km deep · 16 km away
4. 4.54km S of Westminster, CASat, Mar 11, 8:54 AM GMT-8 · 34170 days ago · 6 km deep · 23 km away
5. 3.62km ENE of Seal Beach, CASat, Mar 11, 9:57 AM GMT-8 · 34170 days ago · 6 km deep · 16 km away
6. 3.52km ENE of Seal Beach, CASat, Mar 11, 10:04 AM GMT-8 · 34170 days ago · 6 km deep · 16 km away
7. 3.54km NNW of San Joaquin Hills, CASat, Mar 11, 10:43 AM GMT-8 · 34170 days ago · 6 km deep · 38 km away
8. 3.03km S of Lakewood, CASat, Mar 11, 11:44 AM GMT-8 · 34170 days ago · 6 km deep · 7 km away
9. 4.02km N of Seal Beach, CASat, Mar 11, 11:56 AM GMT-8 · 34170 days ago · 6 km deep · 15 km away
10. 3.02km ENE of Seal Beach, CASat, Mar 11, 1:33 PM GMT-8 · 34170 days ago · 6 km deep · 16 km away
11. 4.02km SSE of Bellflower, CASat, Mar 11, 2:00 PM GMT-8 · 34170 days ago · 6 km deep · 5 km away
12. 4.00km SSE of Los Alamitos, CASat, Mar 11, 2:32 PM GMT-8 · 34170 days ago · 6 km deep · 12 km away
13. 3.92km ENE of Seal Beach, CASat, Mar 11, 2:33 PM GMT-8 · 34170 days ago · 6 km deep · 16 km away
14. 3.95km SSE of Santa Ana, CASat, Mar 11, 2:41 PM GMT-8 · 34170 days ago · 6 km deep · 35 km away
15. 3.33km S of Lakewood, CASat, Mar 11, 2:49 PM GMT-8 · 34170 days ago · 6 km deep · 7 km away
16. 4.02km SSW of Westminster, CASat, Mar 11, 3:05 PM GMT-8 · 34170 days ago · 6 km deep · 21 km away
17. 4.22km NNW of Huntington Beach, CASat, Mar 11, 4:28 PM GMT-8 · 34170 days ago · 6 km deep · 24 km away
18. 3.52km SSE of Westminster, CASat, Mar 11, 4:35 PM GMT-8 · 34170 days ago · 6 km deep · 22 km away
19. 3.34km SW of Westminster, CASat, Mar 11, 5:05 PM GMT-8 · 34170 days ago · 6 km deep · 19 km away
20. 3.42km W of Rossmoor, CASat, Mar 11, 7:14 PM GMT-8 · 34170 days ago · 6 km deep · 12 km away
21. 3.53km NW of Fountain Valley, CASat, Mar 11, 8:49 PM GMT-8 · 34170 days ago · 6 km deep · 24 km away
22. 3.90km NE of Long Beach, CASat, Mar 11, 9:46 PM GMT-8 · 34170 days ago · 6 km deep · 9 km away
23. 4.01km WSW of Rossmoor, CASat, Mar 11, 10:01 PM GMT-8 · 34170 days ago · 6 km deep · 13 km away
24. 4.62 km ENE of Seal Beach, CaliforniaSat, Mar 11, 10:16 PM GMT-8 · 34170 days ago · 16 km deep · 16 km away
25. 4.13km ENE of Long Beach, CASat, Mar 11, 10:16 PM GMT-8 · 34170 days ago · 3 km deep · 8 km away
26. 3.31km NNW of Signal Hill, CASat, Mar 11, 10:54 PM GMT-8 · 34170 days ago · 4 km deep · 8 km away
27. 3.33km WSW of Santa Ana, CASat, Mar 11, 11:39 PM GMT-8 · 34170 days ago · 6 km deep · 28 km away
28. 3.93km SSW of Fountain Valley, CASun, Mar 12, 12:36 AM GMT-8 · 34170 days ago · 6 km deep · 28 km away
29. 3.31km SW of Lakewood, CASun, Mar 12, 2:36 AM GMT-8 · 34170 days ago · 6 km deep · 4 km away
30. 3.41km SE of La Palma, CASun, Mar 12, 4:00 AM GMT-8 · 34170 days ago · 4 km deep · 12 km away
31. 4.00km NE of Fountain Valley, CASun, Mar 12, 7:02 AM GMT-8 · 34169 days ago · 6 km deep · 27 km away
32. 3.32km ENE of Seal Beach, CASun, Mar 12, 7:04 AM GMT-8 · 34169 days ago · 6 km deep · 16 km away
33. 3.62km S of Westminster, CASun, Mar 12, 8:52 AM GMT-8 · 34169 days ago · 6 km deep · 21 km away
34. 4.52 km ENE of Seal Beach, CaliforniaSun, Mar 12, 9:38 AM GMT-8 · 34169 days ago · 16 km deep · 16 km away
35. 4.19km WSW of Laguna Beach, CASun, Mar 12, 9:38 AM GMT-8 · 34169 days ago · 6 km deep · 50 km away
36. 3.81km SSW of Westminster, CASun, Mar 12, 9:39 AM GMT-8 · 34169 days ago · 6 km deep · 20 km away
37. 3.94km E of Seal Beach, CASun, Mar 12, 10:25 AM GMT-8 · 34169 days ago · 6 km deep · 18 km away
38. 4.16km S of Signal Hill, CASun, Mar 12, 11:30 AM GMT-8 · 34169 days ago · 6 km deep · 15 km away
39. 3.53km SSW of Fountain Valley, CASun, Mar 12, 1:28 PM GMT-8 · 34169 days ago · 6 km deep · 28 km away
40. 3.89km S of Newport Beach, CASun, Mar 12, 1:28 PM GMT-8 · 34169 days ago · 6 km deep · 44 km away
41. 3.61km SE of Huntington Beach, CASun, Mar 12, 2:29 PM GMT-8 · 34169 days ago · 6 km deep · 26 km away
42. 4.03km SE of Huntington Beach, CASun, Mar 12, 3:24 PM GMT-8 · 34169 days ago · 8 km deep · 29 km away
43. 4.52 km ENE of Seal Beach, CaliforniaSun, Mar 12, 3:54 PM GMT-8 · 34169 days ago · 16 km deep · 16 km away
44. 4.32km W of Fountain Valley, CASun, Mar 12, 3:54 PM GMT-8 · 34169 days ago · 4 km deep · 25 km away
45. 3.71km SE of Cypress, CASun, Mar 12, 7:44 PM GMT-8 · 34169 days ago · 6 km deep · 14 km away
46. 4.72 km ENE of Seal Beach, CaliforniaSun, Mar 12, 8:32 PM GMT-8 · 34169 days ago · 16 km deep · 16 km away
47. 4.42km NNW of Signal Hill, CASun, Mar 12, 8:33 PM GMT-8 · 34169 days ago · 6 km deep · 8 km away
48. 3.43km NW of Torrance, CASun, Mar 12, 8:39 PM GMT-8 · 34169 days ago · 6 km deep · 19 km away
49. 3.42km SSW of Lakewood, CASun, Mar 12, 9:53 PM GMT-8 · 34169 days ago · 6 km deep · 5 km away
50. 3.83km SE of Westminster, CASun, Mar 12, 10:16 PM GMT-8 · 34169 days ago · 6 km deep · 23 km away
51. 4.82km SSE of Westminster, CAMon, Mar 13, 5:18 AM GMT-8 · 34169 days ago · 6 km deep · 22 km away
52. 2.92km ENE of Seal Beach, CAMon, Mar 13, 7:32 AM GMT-8 · 34168 days ago · 6 km deep · 16 km away
53. 4.16km SSW of Signal Hill, CAMon, Mar 13, 11:30 AM GMT-8 · 34168 days ago · 5 km deep · 15 km away
54. 3.324km SSW of Newport Beach, CAMon, Mar 13, 1:31 PM GMT-8 · 34168 days ago · 6 km deep · 55 km away
55. 4.16km SSE of Seal Beach, CAMon, Mar 13, 4:36 PM GMT-8 · 34168 days ago · 6 km deep · 23 km away
56. 4.52 km ENE of Seal Beach, CaliforniaTue, Mar 14, 4:19 AM GMT-8 · 34168 days ago · 16 km deep · 16 km away
57. 4.45km SE of Seal Beach, CATue, Mar 14, 4:19 AM GMT-8 · 34168 days ago · 6 km deep · 22 km away
58. 3.56km WSW of Laguna Beach, CATue, Mar 14, 6:53 AM GMT-8 · 34167 days ago · 6 km deep · 49 km away
59. 3.46km W of Laguna Beach, CATue, Mar 14, 10:25 AM GMT-8 · 34167 days ago · 6 km deep · 49 km away
60. 4.82km WSW of Huntington Beach, CATue, Mar 14, 11:02 AM GMT-8 · 34167 days ago · 8 km deep · 25 km away

The first 60 of 175.

Before

1. 4.90 km SW of Gardena, CaliforniaSat, Mar 11, 6:57 AM GMT-8 · 34170 days ago · 16 km deep · 15 km away
2. 4.31km SSE of Westminster, CASat, Mar 11, 6:47 AM GMT-8 · 34170 days ago · 6 km deep · 20 km away
3. 3.73km N of Huntington Beach, CASat, Mar 11, 6:29 AM GMT-8 · 34170 days ago · 6 km deep · 23 km away
4. 4.53km ENE of Long Beach, CASat, Mar 11, 6:26 AM GMT-8 · 34170 days ago · 6 km deep · 8 km away
5. 5.02 km NE of Carson, CaliforniaSat, Mar 11, 6:25 AM GMT-8 · 34170 days ago · 16 km deep · 11 km away
6. 3.42km ENE of Seal Beach, CASat, Mar 11, 6:14 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
7. 3.42km ENE of Seal Beach, CASat, Mar 11, 6:03 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
8. 3.74km SE of Seal Beach, CASat, Mar 11, 5:58 AM GMT-8 · 34171 days ago · 6 km deep · 20 km away
9. 4.23km SSE of Westminster, CASat, Mar 11, 5:51 AM GMT-8 · 34171 days ago · 6 km deep · 23 km away
10. 3.42km ENE of Seal Beach, CASat, Mar 11, 5:30 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
11. 3.62km ENE of Seal Beach, CASat, Mar 11, 5:03 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
12. 3.52km ENE of Seal Beach, CASat, Mar 11, 4:59 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
13. 4.23km S of Fountain Valley, CASat, Mar 11, 4:50 AM GMT-8 · 34171 days ago · 6 km deep · 30 km away
14. 3.62km ENE of Seal Beach, CASat, Mar 11, 4:44 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
15. 4.23km WSW of Westminster, CASat, Mar 11, 3:47 AM GMT-8 · 34171 days ago · 6 km deep · 19 km away
16. 4.04km SSE of Long Beach, CASat, Mar 11, 3:42 AM GMT-8 · 34171 days ago · 6 km deep · 13 km away
17. 3.72km ENE of Seal Beach, CASat, Mar 11, 3:38 AM GMT-8 · 34171 days ago · 6 km deep · 16 km away
18. 3.83km WSW of Seal Beach, CASat, Mar 11, 3:29 AM GMT-8 · 34171 days ago · 6 km deep · 17 km away
19. 4.41km WNW of Westminster, CASat, Mar 11, 3:04 AM GMT-8 · 34171 days ago · 6 km deep · 19 km away
20. 4.62 km WNW of Seal Beach, CaliforniaSat, Mar 11, 3:04 AM GMT-8 · 34171 days ago · 16 km deep · 15 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3359866. Read Wed, Sep 30, 2026, 1:45 AM UTC.