QuakeIndex

Every recorded earthquake near

Earthquakes near Rancho Cucamonga, CA

M 3.2

Latest: 5:37 am PDT on 2 September 2026 · 10 km (6 mi) S of Rancho Cucamonga, CA

The most recent earthquake of M2.5 or more near Rancho Cucamonga was M 3.2, 10 km (6 mi) S of Rancho Cucamonga, CA, at 5:37 am PDT on 2 September 2026. 730 people reported feeling it to USGS. 4 smaller earthquakes have been recorded nearby since; the newest is first in the list below.

Within 30 km since 2016
1,330 earthquakes of M1.5 or more
In the last 12 months
86
Largest since 2016
M 4.4 on 28 August 2018, 17 km (11 mi) WNW of Rancho Cucamonga, CA
Reported felt
553 of them have felt reports to USGS

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

The latest 50

  1. 1.2 6 km (4 mi) NNE of Rancho Cucamonga, CA
  2. 2.1 19 km (12 mi) NE of Rancho Cucamonga, CA
  3. 0.9 9 km (5 mi) SSE of Rancho Cucamonga, CA
  4. 1.9 27 km (17 mi) E of Rancho Cucamonga, CA
  5. 1.6 30 km (19 mi) SSE of Rancho Cucamonga, CA
  6. 1.5 9 km (6 mi) S of Rancho Cucamonga, CA
  7. 3.2 10 km (6 mi) S of Rancho Cucamonga, CA · felt by 730
  8. 1.6 20 km (13 mi) ENE of Rancho Cucamonga, CA
  9. 1.7 10 km (6 mi) ENE of Rancho Cucamonga, CA
  10. 1.7 28 km (17 mi) N of Rancho Cucamonga, CA
  11. 1.7 17 km (11 mi) W of Rancho Cucamonga, CA
  12. 1.6 10 km (6 mi) S of Rancho Cucamonga, CA
  13. 2.8 11 km (7 mi) S of Rancho Cucamonga, CA · felt by 128
  14. 1.6 30 km (18 mi) N of Rancho Cucamonga, CA
  15. 1.5 30 km (18 mi) N of Rancho Cucamonga, CA
  16. 1.6 30 km (18 mi) NNW of Rancho Cucamonga, CA
  17. 1.7 37 km (23 mi) NNW of Rancho Cucamonga, CA
  18. 1.6 19 km (12 mi) ENE of Rancho Cucamonga, CA
  19. 1.7 17 km (11 mi) NE of Rancho Cucamonga, CA
  20. 1.5 10 km (6 mi) S of Rancho Cucamonga, CA
  21. 1.6 15 km (10 mi) ENE of Rancho Cucamonga, CA
  22. 2.1 20 km (12 mi) NE of Rancho Cucamonga, CA
  23. 1.6 16 km (10 mi) ENE of Rancho Cucamonga, CA
  24. 1.9 17 km (10 mi) NNE of Rancho Cucamonga, CA
  25. 1.6 25 km (16 mi) E of Rancho Cucamonga, CA
  26. 1.7 27 km (17 mi) E of Rancho Cucamonga, CA
  27. 1.6 23 km (15 mi) ENE of Rancho Cucamonga, CA
  28. 2.0 19 km (12 mi) WNW of Rancho Cucamonga, CA
  29. 3.3 24 km (15 mi) E of Rancho Cucamonga, CA · felt by 592
  30. 2.0 19 km (12 mi) NE of Rancho Cucamonga, CA · felt by 1
  31. 2.4 19 km (12 mi) NNE of Rancho Cucamonga, CA · felt by 4
  32. 2.5 9 km (6 mi) S of Rancho Cucamonga, CA · felt by 151
  33. 1.5 30 km (18 mi) SSE of Rancho Cucamonga, CA
  34. 2.7 17 km (11 mi) ENE of Rancho Cucamonga, CA · felt by 184
  35. 1.6 9 km (6 mi) SSE of Rancho Cucamonga, CA
  36. 1.6 20 km (13 mi) SSW of Rancho Cucamonga, CA
  37. 1.6 30 km (19 mi) SSE of Rancho Cucamonga, CA
  38. 2.0 30 km (19 mi) SSW of Rancho Cucamonga, CA
  39. 1.9 21 km (13 mi) N of Rancho Cucamonga, CA
  40. 1.6 13 km (8 mi) WNW of Rancho Cucamonga, CA · felt by 1
  41. 1.7 27 km (17 mi) E of Rancho Cucamonga, CA
  42. 1.5 29 km (18 mi) SW of Rancho Cucamonga, CA
  43. 1.9 12 km (8 mi) ENE of Rancho Cucamonga, CA · felt by 2
  44. 1.7 18 km (11 mi) WSW of Rancho Cucamonga, CA
  45. 1.9 18 km (11 mi) NE of Rancho Cucamonga, CA
  46. 1.8 14 km (9 mi) E of Rancho Cucamonga, CA · felt by 1
  47. 1.9 28 km (17 mi) ENE of Rancho Cucamonga, CA
  48. 2.3 9 km (6 mi) S of Rancho Cucamonga, CA · felt by 38
  49. 1.7 13 km (8 mi) ENE of Rancho Cucamonga, CA
  50. 2.4 22 km (14 mi) ENE of Rancho Cucamonga, CA · felt by 3

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 Rancho Cucamonga time. Distances are from the town centre. Quakes USGS named after Rancho Cucamonga are listed even when they are further out.

On the map

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

Before 2016

The USGS record since 1900 lists 14 earthquakes of M5 or more within 50 km of Rancho Cucamonga; the five largest:

  1. 6.2 3 km SE of San Bernardino, California · 31 km E of Rancho Cucamonga
  2. 6.0 The 1910 Lake Elsinore, California Earthquake · 49 km SSE of Rancho Cucamonga
  3. 5.9 The 1987 Whittier Narrows, California Earthquake · 45 km W of Rancho Cucamonga
  4. 5.8 The 1991 Sierra Madre, California Earthquake · 41 km WNW of Rancho Cucamonga
  5. 5.5 The 1990 Upland, California Earthquake · 10 km WNW of Rancho Cucamonga

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

Ontario 7 km · Glen Avon 15 km · Fontana 15 km · La Verne 16 km · Pedley 18 km · Chino Hills 20 km · Rialto 21 km · Charter Oak 23 km

If you felt one

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