M1.6 earthquake 2km ENE of Colton, CA

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Jul 31, 2021, 8:27 AM PDT

UTC

2021-07-31 15:27:50 UTC

Depth

15.7 km (9.8 mi), shallow

Epicenter

34.079° N, 117.296° W

Region

California

Felt reports

1

Tsunami flag

No

Status

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

24°

Stations used

77

• Colton, CaliforniaPopulation 54,621. Forecast2 kmENE
• San Bernardino, CaliforniaPopulation 216,108. Forecast3 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast87 kmE

After

1. 2.06km S of Redlands, CASat, Jul 31, 2:31 PM PDT · 1891 days ago · 14 km deep · 13 km away
2. 1.910km WSW of Morongo Valley, CAMon, Aug 2, 3:20 AM PDT · 1889 days ago · 13 km deep · 56 km away
3. 1.540km SW of Ludlow, CAMon, Aug 2, 8:19 PM PDT · 1888 days ago · 1 km deep · 86 km away · felt by 1
4. 1.51km E of Beaumont, CATue, Aug 3, 3:04 PM PDT · 1888 days ago · 16 km deep · 34 km away
5. 1.52km WSW of Costa Mesa, CAWed, Aug 4, 6:18 AM PDT · 1887 days ago · 10 km deep · 75 km away
6. 1.711km SSE of Big Bear Lake, CAWed, Aug 4, 8:06 AM PDT · 1887 days ago · 7 km deep · 39 km away
7. 2.79km NNW of Big Bear City, CAWed, Aug 4, 6:23 PM PDT · 1887 days ago · 2 km deep · 49 km away · felt by 9
8. 3.12km NW of Hemet, CAWed, Aug 4, 11:51 PM PDT · 1886 days ago · 17 km deep · 46 km away · felt by 573
9. 1.95km N of Beaumont, CAThu, Aug 5, 6:48 AM PDT · 1886 days ago · 13 km deep · 31 km away
10. 1.63km S of Mentone, CAThu, Aug 5, 5:20 PM PDT · 1886 days ago · 13 km deep · 16 km away
11. 1.65km WNW of Muscoy, CAFri, Aug 6, 12:00 AM PDT · 1885 days ago · 11 km deep · 14 km away
12. 1.710km S of Idyllwild, CAFri, Aug 6, 2:38 PM PDT · 1885 days ago · 18 km deep · 73 km away
13. 2.26km SE of Valle Vista, CAFri, Aug 6, 9:22 PM PDT · 1884 days ago · 16 km deep · 58 km away · felt by 6
14. 1.76km S of Calimesa, CASat, Aug 7, 1:49 PM PDT · 1884 days ago · 4 km deep · 27 km away
15. 1.86km NW of Desert Hot Springs, CASun, Aug 8, 7:33 AM PDT · 1883 days ago · 10 km deep · 69 km away
16. 1.56km SSW of Redlands, CATue, Aug 10, 10:50 AM PDT · 1881 days ago · 14 km deep · 12 km away
17. 1.76km ESE of Cabazon, CATue, Aug 10, 3:08 PM PDT · 1881 days ago · 16 km deep · 57 km away · felt by 1
18. 2.53km WSW of Fontana, CAThu, Aug 12, 8:15 PM PDT · 1878 days ago · 9 km deep · 18 km away · felt by 83
19. 1.68km ESE of Valle Vista, CAFri, Aug 13, 4:24 AM PDT · 1878 days ago · 17 km deep · 60 km away
20. 2.45km S of Redlands, CAFri, Aug 13, 11:57 AM PDT · 1878 days ago · 14 km deep · 13 km away
21. 1.926km N of Yucca Valley, CASun, Aug 15, 5:41 PM PDT · 1876 days ago · 3 km deep · 83 km away
22. 3.13km NNW of Yucca Valley, CAMon, Aug 16, 11:59 AM PDT · 1875 days ago · 4 km deep · 79 km away · felt by 44
23. 1.81km NNW of La Puente, CAMon, Aug 16, 7:50 PM PDT · 1875 days ago · 9 km deep · 61 km away
24. 2.36km NNE of Beaumont, CAMon, Aug 16, 9:28 PM PDT · 1874 days ago · 16 km deep · 33 km away
25. 1.55km NNE of Fontana, CATue, Aug 17, 2:32 PM PDT · 1874 days ago · 7 km deep · 15 km away
26. 2.213km NNE of Cabazon, CAWed, Aug 18, 7:39 PM PDT · 1873 days ago · 10 km deep · 51 km away · felt by 1
27. 1.817km S of Big Bear City, CAThu, Aug 19, 12:02 AM PDT · 1872 days ago · 6 km deep · 44 km away
28. 1.64km N of Rancho Cucamonga, CASat, Aug 21, 9:22 AM PDT · 1870 days ago · 11 km deep · 27 km away
29. 1.510km S of Idyllwild, CASat, Aug 21, 1:22 PM PDT · 1870 days ago · 15 km deep · 72 km away
30. 2.09km S of Joshua Tree, CASat, Aug 21, 8:39 PM PDT · 1869 days ago · 7 km deep · 90 km away
31. 1.525km N of Yucca Valley, CASun, Aug 22, 4:04 PM PDT · 1869 days ago · 11 km deep · 83 km away
32. 1.94km NE of Temecula, CASun, Aug 22, 9:39 PM PDT · 1868 days ago · 9 km deep · 64 km away
33. 1.710km NE of Aguanga, CAMon, Aug 23, 3:56 PM PDT · 1868 days ago · 4 km deep · 81 km away
34. 1.83km SSE of Devore, CATue, Aug 24, 2:06 AM PDT · 1867 days ago · 12 km deep · 16 km away
35. 2.34km NE of Beaumont, CAWed, Aug 25, 6:43 PM PDT · 1866 days ago · 14 km deep · 35 km away · felt by 1
36. 1.83km SSE of Garden Grove, CASat, Aug 28, 1:30 PM PDT · 1863 days ago · 15 km deep · 70 km away
37. 1.614km WNW of Anza, CASat, Aug 28, 5:55 PM PDT · 1863 days ago · 5 km deep · 70 km away
38. 1.67km S of Idyllwild, CASat, Aug 28, 8:46 PM PDT · 1862 days ago · 14 km deep · 69 km away
39. 1.56km S of Pearblossom, CASun, Aug 29, 12:08 AM PDT · 1862 days ago · 9 km deep · 69 km away · felt by 1
40. 1.84km NW of Silver Lake, CAMon, Aug 30, 1:47 AM PDT · 1861 days ago · 11 km deep · 91 km away · felt by 3
41. 1.64km N of Fontana, CAMon, Aug 30, 3:29 AM PDT · 1861 days ago · 6 km deep · 16 km away · felt by 2
42. 1.74km N of Fontana, CAMon, Aug 30, 4:37 AM PDT · 1861 days ago · 7 km deep · 16 km away
43. 1.72km ESE of Loma Linda, CAMon, Aug 30, 2:39 PM PDT · 1861 days ago · 14 km deep · 7 km away
44. 1.914km WNW of Anza, CAMon, Aug 30, 5:23 PM PDT · 1861 days ago · 5 km deep · 70 km away
45. 2.03km E of Loma Linda, CAWed, Sep 1, 9:41 AM PDT · 1859 days ago · 14 km deep · 7 km away
46. 1.75km NNW of Beaumont, CAThu, Sep 2, 7:42 AM PDT · 1858 days ago · 16 km deep · 30 km away
47. 1.914km NE of Big Bear City, CAThu, Sep 2, 9:43 AM PDT · 1858 days ago · 3 km deep · 60 km away
48. 1.67km NW of Big Bear City, CAThu, Sep 2, 11:45 PM PDT · 1857 days ago · 9 km deep · 45 km away
49. 1.97km NW of Big Bear City, CAThu, Sep 2, 11:48 PM PDT · 1857 days ago · 9 km deep · 45 km away
50. 1.64km WNW of Idyllwild, CAFri, Sep 3, 8:10 PM PDT · 1857 days ago · 13 km deep · 61 km away · felt by 1
51. 1.72km NNW of Inglewood, CAFri, Sep 3, 9:59 PM PDT · 1856 days ago · 8 km deep · 98 km away · felt by 11
52. 1.914km WNW of Anza, CAFri, Sep 3, 10:24 PM PDT · 1856 days ago · 5 km deep · 70 km away · felt by 2
53. 1.814km WNW of Anza, CAFri, Sep 3, 10:39 PM PDT · 1856 days ago · 5 km deep · 70 km away
54. 1.64km SW of Highland, CASat, Sep 4, 10:28 AM PDT · 1856 days ago · 9 km deep · 6 km away
55. 1.64km NE of Whittier, CASun, Sep 5, 7:45 AM PDT · 1855 days ago · 29 km deep · 66 km away
56. 1.74km SE of Yucaipa, CASun, Sep 5, 6:59 PM PDT · 1855 days ago · 17 km deep · 27 km away · felt by 1
57. 1.728km N of Yucca Valley, CASun, Sep 5, 9:53 PM PDT · 1854 days ago · 4 km deep · 83 km away
58. 2.03km ESE of Yucca Valley, CAMon, Sep 6, 2:18 AM PDT · 1854 days ago · 10 km deep · 82 km away
59. 2.715km SE of Anza, CAMon, Sep 6, 6:14 AM PDT · 1854 days ago · 12 km deep · 97 km away
60. 1.814km WNW of Anza, CATue, Sep 7, 6:43 AM PDT · 1853 days ago · 6 km deep · 70 km away

The first 60 of 118.

Before

1. 3.04km SW of Redlands, CAFri, Jul 30, 5:59 PM PDT · 1892 days ago · 15 km deep · 9 km away · felt by 153
2. 1.511km ENE of Yucaipa, CAFri, Jul 30, 3:52 PM PDT · 1892 days ago · 13 km deep · 33 km away
3. 2.014km ENE of Yucaipa, CAFri, Jul 30, 12:30 AM PDT · 1892 days ago · 8 km deep · 36 km away · felt by 1
4. 1.86km ESE of Palomar Observatory, CAWed, Jul 28, 2:05 AM PDT · 1894 days ago · 9 km deep · 94 km away
5. 2.10km W of Brea, CAWed, Jul 28, 12:53 AM PDT · 1894 days ago · 8 km deep · 59 km away · felt by 4
6. 2.428km NNW of Yucca Valley, CAMon, Jul 26, 10:20 PM PDT · 1895 days ago · 3 km deep · 78 km away · felt by 1
7. 1.69km S of Idyllwild, CAMon, Jul 26, 4:24 AM PDT · 1896 days ago · 12 km deep · 70 km away
8. 1.510km SSW of Idyllwild, CAMon, Jul 26, 4:24 AM PDT · 1896 days ago · 13 km deep · 70 km away
9. 1.61km NNW of South Gate, CASun, Jul 25, 8:26 PM PDT · 1896 days ago · 13 km deep · 86 km away
10. 2.012km ESE of Anza, CASat, Jul 24, 11:44 PM PDT · 1897 days ago · 14 km deep · 93 km away
11. 1.622km SSW of Seal Beach, CAFri, Jul 23, 2:43 AM PDT · 1899 days ago · 13 km deep · 100 km away
12. 1.95km SW of Idyllwild, CAThu, Jul 22, 3:19 PM PDT · 1900 days ago · 17 km deep · 64 km away
13. 2.54km SE of Ontario, CAThu, Jul 22, 1:14 PM PDT · 1900 days ago · 16 km deep · 28 km away · felt by 6
14. 1.910km SW of Idyllwild, CAThu, Jul 22, 12:03 PM PDT · 1900 days ago · 17 km deep · 64 km away
15. 1.76km NW of Corona, CAThu, Jul 22, 11:26 AM PDT · 1900 days ago · 7 km deep · 34 km away
16. 2.09km WSW of Lytle Creek, CAWed, Jul 21, 7:48 PM PDT · 1901 days ago · 6 km deep · 31 km away · felt by 1
17. 1.93km WSW of Compton, CAWed, Jul 21, 3:28 AM PDT · 1901 days ago · 12 km deep · 91 km away
18. 1.75km ENE of Villa Park, CAMon, Jul 19, 8:03 PM PDT · 1903 days ago · 8 km deep · 51 km away
19. 1.612km E of Yucaipa, CAMon, Jul 19, 1:11 PM PDT · 1903 days ago · 18 km deep · 36 km away
20. 1.911km SSE of Big Bear Lake, CASun, Jul 18, 10:48 AM PDT · 1904 days ago · 7 km deep · 39 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci39759927. Read Sun, Oct 4, 2026, 2:41 PM UTC.