M1.8 earthquake 4km NNW of Wrightwood, CA

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Apr 22, 2021, 8:10 PM PDT

UTC

2021-04-23 03:10:52 UTC

Depth

7.0 km (4.3 mi), shallow

Epicenter

34.393° N, 117.657° W

Region

California

Felt reports

2

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

25°

Stations used

59

• Wrightwood, CaliforniaPopulation 4,525. Forecast4 kmNNW
• Phelan, CaliforniaPopulation 14,304. Forecast9 kmWSW
• Rancho Cucamonga, CaliforniaPopulation 175,236. Forecast32 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast66 kmNE

After

1. 1.61km N of Wildomar, CAFri, Apr 23, 10:46 AM PDT · 1990 days ago · 6 km deep · 94 km away
2. 2.14km NE of Running Springs, CASun, Apr 25, 7:25 PM PDT · 1988 days ago · 2 km deep · 56 km away · felt by 3
3. 2.31km N of Lennox, CATue, Apr 27, 9:38 AM PDT · 1986 days ago · 21 km deep · 81 km away
4. 2.10km N of Lennox, CATue, Apr 27, 11:17 AM PDT · 1986 days ago · 21 km deep · 81 km away · felt by 1
5. 1.83km WNW of Lennox, CATue, Apr 27, 11:21 AM PDT · 1986 days ago · 21 km deep · 83 km away
6. 1.71km ENE of Lennox, CATue, Apr 27, 11:21 AM PDT · 1986 days ago · 19 km deep · 81 km away
7. 2.21km N of Lennox, CATue, Apr 27, 11:27 AM PDT · 1986 days ago · 20 km deep · 81 km away
8. 1.90km SW of Lennox, CATue, Apr 27, 12:36 PM PDT · 1986 days ago · 21 km deep · 82 km away
9. 1.61km W of Sierra Madre, CATue, Apr 27, 8:20 PM PDT · 1986 days ago · 9 km deep · 46 km away
10. 1.59km N of Banning, CATue, Apr 27, 11:41 PM PDT · 1986 days ago · 15 km deep · 84 km away
11. 1.59km S of Banning, CAWed, Apr 28, 11:13 AM PDT · 1985 days ago · 13 km deep · 94 km away
12. 1.56km SW of Barstow, CAThu, Apr 29, 11:54 AM PDT · 1984 days ago · 7 km deep · 75 km away
13. 2.03km NNW of Fontana, CAThu, Apr 29, 6:48 PM PDT · 1984 days ago · 5 km deep · 35 km away · felt by 2
14. 1.63km ESE of Garden Grove, CAThu, Apr 29, 8:52 PM PDT · 1984 days ago · 14 km deep · 74 km away
15. 2.61km N of Yucaipa, CAFri, Apr 30, 2:35 PM PDT · 1983 days ago · 11 km deep · 68 km away · felt by 44
16. 1.53km NNW of Fontana, CAFri, Apr 30, 2:37 PM PDT · 1983 days ago · 4 km deep · 34 km away
17. 1.66km SE of Loma Linda, CAFri, Apr 30, 4:13 PM PDT · 1983 days ago · 10 km deep · 58 km away
18. 1.65km NNW of Sylmar, CASun, May 2, 9:42 PM PDT · 1981 days ago · 5 km deep · 75 km away
19. 1.82km S of Cabazon, CATue, May 4, 11:14 AM PDT · 1979 days ago · 16 km deep · 97 km away
20. 2.67km WSW of Hermosa Beach, CATue, May 4, 12:23 PM PDT · 1979 days ago · 13 km deep · 97 km away · felt by 115
21. 1.53km E of Fontana, CAWed, May 5, 6:25 AM PDT · 1979 days ago · 3 km deep · 39 km away
22. 2.26km NW of Mira Loma, CAWed, May 5, 10:47 PM PDT · 1978 days ago · 7 km deep · 42 km away · felt by 46
23. 1.611km ENE of North Tustin, CAThu, May 6, 5:22 AM PDT · 1978 days ago · 8 km deep · 65 km away
24. 2.02km N of Lytle Creek, CAThu, May 6, 4:00 PM PDT · 1977 days ago · 11 km deep · 19 km away
25. 1.76km WSW of Manhattan Beach, CASat, May 8, 1:46 AM PDT · 1976 days ago · 11 km deep · 95 km away
26. 3.55km WSW of Hermosa Beach, CASat, May 8, 6:55 PM PDT · 1975 days ago · 12 km deep · 95 km away · felt by 2,359
27. 3.04km SE of Loma Linda, CASun, May 9, 2:09 AM PDT · 1975 days ago · 16 km deep · 56 km away · felt by 187
28. 2.55km WSW of Hermosa Beach, CASun, May 9, 2:37 AM PDT · 1975 days ago · 13 km deep · 95 km away · felt by 156
29. 1.714km SSW of Seal Beach, CASun, May 9, 9:22 AM PDT · 1974 days ago · 12 km deep · 97 km away
30. 1.511km NW of Mojave, CAMon, May 10, 7:17 AM PDT · 1974 days ago · 9 km deep · 98 km away
31. 1.64km SE of Chino Hills, CATue, May 11, 2:14 AM PDT · 1973 days ago · 14 km deep · 48 km away
32. 2.14km SE of Loma Linda, CATue, May 11, 4:48 AM PDT · 1973 days ago · 17 km deep · 57 km away · felt by 2
33. 1.66km W of Big Bear Lake, CATue, May 11, 8:16 PM PDT · 1972 days ago · 10 km deep · 65 km away
34. 2.115km N of Castaic, CAWed, May 12, 1:07 AM PDT · 1972 days ago · 11 km deep · 94 km away
35. 1.85km E of Yucaipa, CAWed, May 12, 10:40 AM PDT · 1971 days ago · 12 km deep · 73 km away
36. 1.54km SE of Loma Linda, CAWed, May 12, 12:28 PM PDT · 1971 days ago · 15 km deep · 57 km away
37. 1.64km NNE of San Bernardino, CAWed, May 12, 8:55 PM PDT · 1971 days ago · 7 km deep · 43 km away
38. 1.86km NNE of Fontana, CAThu, May 13, 5:33 AM PDT · 1971 days ago · 11 km deep · 34 km away
39. 2.07km NNE of Fontana, CAThu, May 13, 5:33 AM PDT · 1971 days ago · 11 km deep · 33 km away · felt by 2
40. 1.57km SSE of Littlerock, CAThu, May 13, 10:58 AM PDT · 1970 days ago · 9 km deep · 29 km away
41. 2.110km NNE of Banning, CAThu, May 13, 7:33 PM PDT · 1970 days ago · 12 km deep · 85 km away
42. 1.64km ENE of Big Bear City, CASat, May 15, 5:42 AM PDT · 1969 days ago · 7 km deep · 79 km away
43. 1.67km NNW of Mira Loma, CASun, May 16, 12:09 AM PDT · 1968 days ago · 12 km deep · 40 km away
44. 1.511km E of Yorba Linda, CAMon, May 17, 4:13 AM PDT · 1967 days ago · 8 km deep · 58 km away
45. 1.64km SW of Rancho Cucamonga, CAMon, May 17, 4:34 AM PDT · 1967 days ago · 12 km deep · 33 km away
46. 1.56km N of Banning, CAMon, May 17, 12:38 PM PDT · 1966 days ago · 19 km deep · 86 km away
47. 1.51km NNE of Loma Linda, CAWed, May 19, 9:49 PM PDT · 1964 days ago · 17 km deep · 52 km away
48. 1.929km ENE of Lucerne Valley, CAThu, May 20, 4:04 AM PDT · 1964 days ago · 8 km deep · 91 km away
49. 2.02km ENE of Granada Hills, CAFri, May 21, 11:34 AM PDT · 1962 days ago · 11 km deep · 77 km away · felt by 4
50. 1.97km SW of Pearblossom, CASat, May 22, 10:47 AM PDT · 1961 days ago · 8 km deep · 29 km away
51. 1.85km S of Banning, CATue, May 25, 4:08 PM PDT · 1958 days ago · 14 km deep · 92 km away
52. 1.82km SW of San Fernando, CATue, May 25, 11:46 PM PDT · 1958 days ago · 10 km deep · 75 km away
53. 1.62km SW of San Fernando, CATue, May 25, 11:49 PM PDT · 1958 days ago · 11 km deep · 75 km away
54. 2.111km E of Yorba Linda, CAWed, May 26, 8:29 AM PDT · 1958 days ago · 10 km deep · 58 km away · felt by 1
55. 2.63km E of Anaheim, CAThu, May 27, 5:07 PM PDT · 1956 days ago · 5 km deep · 65 km away · felt by 419
56. 2.14km E of Anaheim, CAThu, May 27, 10:05 PM PDT · 1956 days ago · 6 km deep · 64 km away · felt by 52
57. 1.54km E of Anaheim, CAThu, May 27, 11:44 PM PDT · 1956 days ago · 5 km deep · 64 km away
58. 1.54km E of Anaheim, CAFri, May 28, 1:13 AM PDT · 1956 days ago · 5 km deep · 64 km away
59. 1.67km E of Calimesa, CASat, May 29, 12:38 AM PDT · 1955 days ago · 16 km deep · 76 km away
60. 2.27km SW of Pearblossom, CASat, May 29, 8:56 PM PDT · 1954 days ago · 8 km deep · 29 km away · felt by 2

The first 60 of 109.

Before

1. 1.94km SE of Yucaipa, CAWed, Apr 21, 6:46 PM PDT · 1992 days ago · 17 km deep · 73 km away
2. 1.66km SE of Loma Linda, CAWed, Apr 21, 6:11 PM PDT · 1992 days ago · 11 km deep · 58 km away
3. 2.42km E of Commerce, CATue, Apr 20, 11:55 AM PDT · 1993 days ago · 18 km deep · 62 km away
4. 1.51km SE of Marina del Rey, CATue, Apr 20, 9:11 AM PDT · 1994 days ago · 10 km deep · 86 km away
5. 1.811km E of Yorba Linda, CATue, Apr 20, 2:11 AM PDT · 1994 days ago · 9 km deep · 57 km away
6. 2.73km WSW of Redlands, CATue, Apr 20, 12:03 AM PDT · 1994 days ago · 16 km deep · 56 km away · felt by 27
7. 1.56km NNW of San Jacinto, CAMon, Apr 19, 7:12 PM PDT · 1994 days ago · 13 km deep · 88 km away
8. 1.78km ESE of Big Bear City, CASat, Apr 17, 3:34 AM PDT · 1997 days ago · 7 km deep · 84 km away
9. 2.01km NNE of Laguna Beach, CAFri, Apr 16, 8:01 AM PDT · 1998 days ago · 14 km deep · 94 km away
10. 3.12km N of Cabazon, CAThu, Apr 8, 5:33 PM PDT · 2005 days ago · 15 km deep · 95 km away · felt by 68
11. 1.67km NE of Banning, CAThu, Apr 8, 1:05 PM PDT · 2005 days ago · 9 km deep · 89 km away
12. 1.66km NNW of San Jacinto, CAThu, Apr 8, 4:30 AM PDT · 2006 days ago · 12 km deep · 88 km away
13. 2.86km NW of San Jacinto, CAThu, Apr 8, 4:19 AM PDT · 2006 days ago · 12 km deep · 88 km away · felt by 48
14. 2.02km N of Muscoy, CAWed, Apr 7, 10:48 PM PDT · 2006 days ago · 6 km deep · 38 km away · felt by 8
15. 2.12km N of Muscoy, CAWed, Apr 7, 10:48 PM PDT · 2006 days ago · 6 km deep · 38 km away · felt by 32
16. 1.810km NNE of Running Springs, CAWed, Apr 7, 3:08 PM PDT · 2006 days ago · 5 km deep · 55 km away
17. 1.86km NW of San Jacinto, CAWed, Apr 7, 3:09 AM PDT · 2007 days ago · 13 km deep · 88 km away
18. 1.93km WNW of Lennox, CATue, Apr 6, 1:05 PM PDT · 2007 days ago · 22 km deep · 83 km away
19. 2.21km NNW of Lennox, CATue, Apr 6, 1:05 PM PDT · 2007 days ago · 21 km deep · 81 km away · felt by 3
20. 1.61km SE of Lennox, CAMon, Apr 5, 9:16 PM PDT · 2008 days ago · 23 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci39625527. Read Mon, Oct 5, 2026, 3:46 AM UTC.