QuakeIndex

Every recorded earthquake near

Earthquakes near Acton, CA

M 3.3

Latest: 10:49 pm PDT on 8 September 2025 · 26 km (16 mi) E of Acton, CA

The most recent earthquake of M2.5 or more near Acton was M 3.3, 26 km (16 mi) E of Acton, CA, at 10:49 pm PDT on 8 September 2025. 93 people reported feeling it to USGS. 13 smaller earthquakes have been recorded nearby since; the newest is first in the list below.

Within 30 km since 2016
179 earthquakes of M1.5 or more
In the last 12 months
11
Largest since 2016
M 4.2 on 30 July 2020, 29 km (18 mi) SW of Acton, CA
Reported felt
60 of them have felt reports to USGS

USGS · feed checked · newest earthquake in our database · this page

The latest 50

  1. 1.9 11 km (7 mi) ENE of Acton, CA
  2. 1.8 26 km (16 mi) E of Acton, CA
  3. 1.5 26 km (16 mi) E of Acton, CA
  4. 2.4 24 km (15 mi) SW of Acton, CA · felt by 26
  5. 1.7 29 km (18 mi) S of Acton, CA
  6. 1.8 8 km (5 mi) ENE of Acton, CA
  7. 1.6 24 km (15 mi) W of Acton, CA
  8. 2.4 19 km (12 mi) E of Acton, CA · felt by 8
  9. 1.8 26 km (16 mi) NE of Acton, CA
  10. 1.8 27 km (17 mi) E of Acton, CA
  11. 2.0 22 km (13 mi) WSW of Acton, CA
  12. 2.0 28 km (17 mi) E of Acton, CA
  13. 1.8 29 km (18 mi) E of Acton, CA
  14. 3.3 26 km (16 mi) E of Acton, CA · felt by 93
  15. 2.0 26 km (16 mi) SW of Acton, CA
  16. 1.7 11 km (7 mi) ENE of Acton, CA · felt by 1
  17. 1.6 23 km (14 mi) WSW of Acton, CA
  18. 1.6 10 km (6 mi) NNE of Acton, CA
  19. 1.7 27 km (17 mi) SW of Acton, CA · felt by 1
  20. 1.8 11 km (7 mi) ENE of Acton, CA
  21. 1.6 9 km (5 mi) NNE of Acton, CA
  22. 1.8 8 km (5 mi) ENE of Acton, CA
  23. 1.7 19 km (12 mi) NE of Acton, CA
  24. 2.2 17 km (11 mi) E of Acton, CA
  25. 1.6 26 km (16 mi) E of Acton, CA · felt by 5
  26. 1.8 21 km (13 mi) E of Acton, CA
  27. 1.7 10 km (6 mi) ENE of Acton, CA
  28. 2.4 10 km (6 mi) ENE of Acton, CA · felt by 5
  29. 1.5 10 km (6 mi) ENE of Acton, CA
  30. 1.5 29 km (18 mi) E of Acton, CA
  31. 1.5 30 km (18 mi) E of Acton, CA
  32. 1.5 27 km (17 mi) E of Acton, CA
  33. 2.0 21 km (13 mi) E of Acton, CA
  34. 1.6 12 km (8 mi) NNW of Acton, CA
  35. 1.9 21 km (13 mi) E of Acton, CA
  36. 1.6 25 km (15 mi) E of Acton, CA
  37. 1.7 19 km (12 mi) NE of Acton, CA · felt by 1
  38. 1.7 19 km (12 mi) NE of Acton, CA
  39. 1.9 30 km (18 mi) WNW of Acton, CA
  40. 1.6 10 km (6 mi) ENE of Acton, CA
  41. 1.7 19 km (12 mi) WSW of Acton, CA
  42. 1.9 22 km (14 mi) E of Acton, CA
  43. 1.9 22 km (14 mi) E of Acton, CA
  44. 1.6 22 km (14 mi) E of Acton, CA
  45. 1.6 24 km (15 mi) E of Acton, CA
  46. 1.6 20 km (13 mi) E of Acton, CA
  47. 2.2 28 km (17 mi) WSW of Acton, CA
  48. 1.8 19 km (12 mi) WSW of Acton, CA
  49. 1.6 24 km (15 mi) E of Acton, CA
  50. 1.8 19 km (12 mi) WSW of Acton, CA

From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Acton time. Distances are from the town centre. Quakes USGS named after Acton are listed even when they are further out.

On the map

The white circle is Acton; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Before 2016

The USGS record since 1900 lists 19 earthquakes of M5 or more within 50 km of Acton; the five largest:

  1. 6.7 Northridge, California, earthquake · 42 km SW of Acton
  2. 6.6 1971 San Fernando Earthquake, California · 17 km WSW of Acton
  3. 5.9 The 1987 Whittier Narrows, California Earthquake · 47 km SSE of Acton
  4. 5.9 1km ENE of Granada Hills, California · 35 km SW of Acton
  5. 5.8 10km SSW of Agua Dulce, CA · 17 km WSW of Acton

USGS ComCat, M5+ from 1900 to 2016. This is the record, not a forecast.

Nearest mapped faults

USGS Quaternary Fault and Fold Database. Near is not the same as on.

Nearby towns

Palmdale 14 km · Littlerock 20 km · Lancaster 26 km · Santa Clarita 33 km · Sierra Madre 37 km · Valencia 38 km · Castaic 39 km · South Pasadena 40 km

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.