M2.1 earthquake 4km SE of Temecula, CA

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Wed, Aug 9, 1978, 11:02 AM PDT

UTC

1978-08-09 18:02:12 UTC

Depth

4.3 km (2.7 mi), shallow

Epicenter

33.471° N, 117.122° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 4.0 km in depth

Magnitude uncertainty

±0.32

Depth from

From location

Station coverage gap

107°

Stations used

7

• Temecula, CaliforniaPopulation 110,003. Forecast3 kmSE
• San Diego, CaliforniaPopulation 1,404,452. Forecast84 kmN

After

1. 2.116km SE of Big Bear City, CAWed, Aug 9, 2:08 PM PDT · 17588 days ago · 2 km deep · 83 km away
2. 1.614km N of Borrego Springs, CAThu, Aug 10, 8:38 AM PDT · 17587 days ago · 13 km deep · 70 km away
3. 2.220km NW of Yucca Valley, CAThu, Aug 10, 10:37 AM PDT · 17587 days ago · 11 km deep · 97 km away
4. 1.814km ENE of Borrego Springs, CAThu, Aug 10, 12:50 PM PDT · 17587 days ago · 8 km deep · 83 km away
5. 1.85km WNW of Devore, CAThu, Aug 10, 1:07 PM PDT · 17587 days ago · 11 km deep · 91 km away
6. 3.96km N of Fontana, CAThu, Aug 10, 5:47 PM PDT · 17587 days ago · 7 km deep · 81 km away
7. 2.19km S of Idyllwild, CAFri, Aug 11, 1:57 AM PDT · 17587 days ago · 15 km deep · 43 km away
8. 1.68km N of Julian, CAFri, Aug 11, 7:13 AM PDT · 17586 days ago · 6 km deep · 60 km away
9. 1.96km NNE of Fontana, CAFri, Aug 11, 2:26 PM PDT · 17586 days ago · 8 km deep · 81 km away
10. 1.54km NNW of Julian, CAFri, Aug 11, 10:22 PM PDT · 17586 days ago · 13 km deep · 61 km away
11. 1.52km N of Palomar Observatory, CASat, Aug 12, 12:52 AM PDT · 17586 days ago · 9 km deep · 26 km away
12. 1.66km SSW of Devore, CASat, Aug 12, 8:40 AM PDT · 17585 days ago · 9 km deep · 83 km away
13. 1.74km SW of Big Bear Lake, CASat, Aug 12, 9:34 AM PDT · 17585 days ago · 7 km deep · 85 km away
14. 1.84km SW of Big Bear Lake, CASat, Aug 12, 9:34 AM PDT · 17585 days ago · 9 km deep · 85 km away
15. 2.217km NW of Yucca Valley, CASat, Aug 12, 10:23 AM PDT · 17585 days ago · 9 km deep · 99 km away
16. 1.74km NNW of Beaumont, CASat, Aug 12, 3:12 PM PDT · 17585 days ago · 17 km deep · 56 km away
17. 1.66km SSE of Banning, CASun, Aug 13, 8:44 AM PDT · 17584 days ago · 14 km deep · 51 km away
18. 2.72km W of Devore, CASun, Aug 13, 2:48 PM PDT · 17584 days ago · 11 km deep · 88 km away
19. 1.811km NNE of Borrego Springs, CASun, Aug 13, 6:16 PM PDT · 17584 days ago · 14 km deep · 73 km away
20. 2.67km NNE of Banning, CASun, Aug 13, 7:05 PM PDT · 17584 days ago · 6 km deep · 63 km away
21. 1.710km N of Big Bear Lake, CAMon, Aug 14, 9:32 AM PDT · 17583 days ago · 3 km deep · 97 km away
22. 2.14km NNE of Running Springs, CAMon, Aug 14, 10:13 AM PDT · 17583 days ago · 2 km deep · 86 km away
23. 1.911km NE of Cabazon, CAMon, Aug 14, 11:27 AM PDT · 17583 days ago · 18 km deep · 69 km away
24. 1.89km W of Garnet, CAMon, Aug 14, 2:05 PM PDT · 17583 days ago · 17 km deep · 64 km away
25. 1.612km N of Banning, CAMon, Aug 14, 2:15 PM PDT · 17583 days ago · 17 km deep · 66 km away
26. 1.910km SE of Anza, CAMon, Aug 14, 5:32 PM PDT · 17583 days ago · 9 km deep · 50 km away
27. 1.617km ESE of Anza, CATue, Aug 15, 7:25 AM PDT · 17582 days ago · 14 km deep · 57 km away
28. 2.922km ESE of Anza, CATue, Aug 15, 8:50 AM PDT · 17582 days ago · 7 km deep · 61 km away
29. 1.513km N of Ocotillo Wells, CATue, Aug 15, 11:42 AM PDT · 17582 days ago · 6 km deep · 97 km away
30. 2.010km SSW of Idyllwild, CATue, Aug 15, 12:42 PM PDT · 17582 days ago · 13 km deep · 38 km away
31. 1.813km ENE of Borrego Springs, CATue, Aug 15, 1:06 PM PDT · 17582 days ago · 3 km deep · 83 km away
32. 1.86km NNE of Fontana, CAWed, Aug 16, 10:04 AM PDT · 17581 days ago · 5 km deep · 81 km away
33. 1.610km NE of Cabazon, CAWed, Aug 16, 1:56 PM PDT · 17581 days ago · 14 km deep · 68 km away
34. 1.98km NNW of Julian, CAWed, Aug 16, 4:25 PM PDT · 17581 days ago · 18 km deep · 57 km away
35. 2.04km SW of Big Bear Lake, CAWed, Aug 16, 7:16 PM PDT · 17581 days ago · 6 km deep · 85 km away
36. 2.017km ESE of Anza, CAThu, Aug 17, 5:01 AM PDT · 17581 days ago · 14 km deep · 58 km away
37. 2.06km SE of Yorba Linda, CAThu, Aug 17, 2:27 PM PDT · 17580 days ago · 5 km deep · 74 km away
38. 1.812km NNE of Ocotillo Wells, CAThu, Aug 17, 7:04 PM PDT · 17580 days ago · 3 km deep · 98 km away
39. 1.511km WNW of Morongo Valley, CAFri, Aug 18, 9:45 AM PDT · 17579 days ago · 9 km deep · 77 km away
40. 2.04km SSE of Loma Linda, CASat, Aug 19, 4:12 AM PDT · 17579 days ago · 13 km deep · 61 km away
41. 1.64km SE of Big Bear Lake, CASat, Aug 19, 6:37 AM PDT · 17578 days ago · 17 km deep · 86 km away
42. 1.612km SW of Morongo Valley, CASat, Aug 19, 2:53 PM PDT · 17578 days ago · 13 km deep · 69 km away
43. 1.614km NNW of Ocotillo Wells, CASun, Aug 20, 5:43 AM PDT · 17578 days ago · 7 km deep · 90 km away
44. 2.76km NNE of Fontana, CASun, Aug 20, 10:57 AM PDT · 17577 days ago · 5 km deep · 81 km away
45. 1.918km NNW of Borrego Springs, CASun, Aug 20, 6:57 PM PDT · 17577 days ago · 15 km deep · 64 km away
46. 1.618km ESE of Anza, CAMon, Aug 21, 4:41 AM PDT · 17577 days ago · 14 km deep · 58 km away
47. 1.811km SE of Anza, CAMon, Aug 21, 7:44 AM PDT · 17576 days ago · 10 km deep · 48 km away
48. 1.67km ESE of Valle Vista, CAMon, Aug 21, 8:22 AM PDT · 17576 days ago · 17 km deep · 39 km away
49. 1.718km ESE of Anza, CAMon, Aug 21, 8:41 AM PDT · 17576 days ago · 14 km deep · 58 km away
50. 2.012km N of Cabazon, CAMon, Aug 21, 11:30 AM PDT · 17576 days ago · 9 km deep · 70 km away
51. 1.911km NW of Warner Springs, CAMon, Aug 21, 12:47 PM PDT · 17576 days ago · 16 km deep · 41 km away
52. 1.713km ENE of Borrego Springs, CATue, Aug 22, 6:13 AM PDT · 17576 days ago · 5 km deep · 84 km away
53. 1.715km N of Borrego Springs, CATue, Aug 22, 7:55 AM PDT · 17575 days ago · 13 km deep · 68 km away
54. 2.35km S of Mentone, CATue, Aug 22, 10:31 AM PDT · 17575 days ago · 4 km deep · 62 km away
55. 1.84km S of Mentone, CATue, Aug 22, 7:13 PM PDT · 17575 days ago · 7 km deep · 63 km away
56. 1.617km ESE of Julian, CATue, Aug 22, 11:36 PM PDT · 17575 days ago · 16 km deep · 80 km away
57. 1.86km SSE of Idyllwild, CAWed, Aug 23, 3:28 AM PDT · 17575 days ago · 16 km deep · 46 km away
58. 1.67km WSW of Anza, CAWed, Aug 23, 9:06 AM PDT · 17574 days ago · 5 km deep · 35 km away
59. 2.16km NNE of Fontana, CAWed, Aug 23, 11:32 AM PDT · 17574 days ago · 3 km deep · 81 km away
60. 2.03km NW of Palomar Observatory, CAWed, Aug 23, 7:32 PM PDT · 17574 days ago · 8 km deep · 25 km away

The first 60 of 154.

Before

1. 1.61km S of Loma Linda, CAWed, Aug 9, 10:15 AM PDT · 17588 days ago · 18 km deep · 65 km away
2. 2.52km NNW of Palomar Observatory, CAWed, Aug 9, 12:27 AM PDT · 17589 days ago · 7 km deep · 26 km away
3. 1.66km WSW of Idyllwild, CATue, Aug 8, 11:57 PM PDT · 17589 days ago · 16 km deep · 42 km away
4. 1.611km N of Borrego Springs, CATue, Aug 8, 6:29 PM PDT · 17589 days ago · 13 km deep · 73 km away
5. 1.912km N of Borrego Springs, CATue, Aug 8, 6:04 PM PDT · 17589 days ago · 12 km deep · 72 km away
6. 2.422km ENE of Pine Valley, CATue, Aug 8, 5:09 PM PDT · 17589 days ago · 6 km deep · 95 km away
7. 2.522km NE of Pine Valley, CATue, Aug 8, 5:08 PM PDT · 17589 days ago · 6 km deep · 95 km away
8. 1.810km NE of Desert Hot Springs, CAMon, Aug 7, 11:24 PM PDT · 17590 days ago · 7 km deep · 89 km away
9. 1.61km ESE of Orange, CAMon, Aug 7, 10:42 PM PDT · 17590 days ago · 15 km deep · 74 km away
10. 1.613km N of Borrego Springs, CAMon, Aug 7, 7:56 PM PDT · 17590 days ago · 14 km deep · 69 km away
11. 2.015km NNE of Borrego Springs, CAMon, Aug 7, 5:53 PM PDT · 17590 days ago · 2 km deep · 75 km away
12. 1.83km SE of San Jacinto, CAMon, Aug 7, 6:00 AM PDT · 17591 days ago · 6 km deep · 37 km away
13. 1.621km ESE of Anza, CAMon, Aug 7, 12:38 AM PDT · 17591 days ago · 14 km deep · 59 km away
14. 2.116km SE of Big Bear City, CASun, Aug 6, 8:02 PM PDT · 17591 days ago · 0 km deep · 83 km away
15. 1.87km WSW of Calimesa, CASun, Aug 6, 4:57 PM PDT · 17591 days ago · 19 km deep · 55 km away
16. 1.513km SE of Warner Springs, CASun, Aug 6, 4:16 PM PDT · 17591 days ago · 11 km deep · 62 km away
17. 1.77km NE of Beaumont, CASun, Aug 6, 7:42 AM PDT · 17591 days ago · 4 km deep · 59 km away
18. 1.610km WSW of Lytle Creek, CASun, Aug 6, 2:46 AM PDT · 17592 days ago · 5 km deep · 94 km away
19. 1.916km SE of Big Bear City, CASat, Aug 5, 4:15 PM PDT · 17592 days ago · 2 km deep · 83 km away
20. 1.64km ESE of Lytle Creek, CASat, Aug 5, 1:06 PM PDT · 17592 days ago · 12 km deep · 91 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci10012066. Read Mon, Oct 5, 2026, 12:58 AM UTC.