M2.1 earthquake 11km W of Corona, CA

Magnitude

2.1 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, May 18, 1981, 5:48 PM PDT

UTC

1981-05-19 00:48:42 UTC

Depth

4.5 km (2.8 mi), shallow

Epicenter

33.888° N, 117.688° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 1.4 km in depth

Depth from

From location

Station coverage gap

90°

Stations used

39

• Los Serranos, CaliforniaPopulation 7,099. Forecast10 kmS
• Corona, CaliforniaPopulation 164,226. Forecast11 kmW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast54 kmESE

After

1. 1.710km NNE of Running Springs, CAMon, May 18, 7:57 PM PDT · 16574 days ago · 8 km deep · 72 km away
2. 1.82km S of MacArthur Park, CAWed, May 20, 10:05 AM PDT · 16572 days ago · 7 km deep · 57 km away
3. 1.52km S of Artesia, CAWed, May 20, 11:47 AM PDT · 16572 days ago · 5 km deep · 37 km away
4. 1.84km NNW of Palomar Observatory, CAFri, May 22, 4:35 AM PDT · 16570 days ago · 6 km deep · 93 km away
5. 1.510km NNE of Valle Vista, CAFri, May 22, 9:56 AM PDT · 16570 days ago · 14 km deep · 76 km away
6. 2.41km ENE of Loma Linda, CAFri, May 22, 4:38 PM PDT · 16570 days ago · 16 km deep · 44 km away
7. 1.51km SW of MacArthur Park, CASat, May 23, 1:39 PM PDT · 16569 days ago · 9 km deep · 58 km away
8. 1.51km SSE of MacArthur Park, CASun, May 24, 4:57 AM PDT · 16568 days ago · 8 km deep · 57 km away
9. 2.58km NNW of Fontana, CAMon, May 25, 9:13 AM PDT · 16567 days ago · 5 km deep · 36 km away
10. 2.011km NE of Aguanga, CAMon, May 25, 10:32 AM PDT · 16567 days ago · 3 km deep · 94 km away
11. 2.16km W of Big Bear Lake, CAMon, May 25, 3:36 PM PDT · 16567 days ago · 5 km deep · 76 km away
12. 1.75km ESE of Yucaipa, CATue, May 26, 1:01 AM PDT · 16566 days ago · 5 km deep · 66 km away
13. 2.02km S of Lynwood, CATue, May 26, 3:07 AM PDT · 16566 days ago · 5 km deep · 48 km away
14. 2.01km NNW of West Hills, CAThu, May 28, 11:36 AM PDT · 16564 days ago · 3 km deep · 95 km away
15. 2.11km SW of Paramount, CAFri, May 29, 6:39 AM PDT · 16563 days ago · 8 km deep · 45 km away
16. 1.54km ESE of Running Springs, CASun, May 31, 12:35 PM PDT · 16561 days ago · 3 km deep · 66 km away
17. 1.611km SW of Morongo Valley, CAMon, Jun 1, 11:34 PM PDT · 16559 days ago · 16 km deep · 95 km away
18. 1.612km WSW of Morongo Valley, CATue, Jun 2, 12:13 PM PDT · 16559 days ago · 16 km deep · 93 km away
19. 3.34km NW of Rancho Cucamonga, CATue, Jun 2, 10:29 PM PDT · 16559 days ago · 7 km deep · 29 km away
20. 2.127km WSW of Rancho Palos Verdes, CATue, Jun 2, 11:06 PM PDT · 16558 days ago · 5 km deep · 94 km away
21. 1.824km SW of Dana Point, CAWed, Jun 3, 4:54 AM PDT · 16558 days ago · 5 km deep · 66 km away
22. 1.93km E of Colton, CAWed, Jun 3, 2:32 PM PDT · 16558 days ago · 11 km deep · 43 km away
23. 2.131km WSW of Rancho Palos Verdes, CAWed, Jun 3, 4:20 PM PDT · 16558 days ago · 5 km deep · 98 km away
24. 1.57km SSW of Cabazon, CAWed, Jun 3, 4:57 PM PDT · 16558 days ago · 17 km deep · 81 km away
25. 1.516km NNW of Aguanga, CAWed, Jun 3, 8:47 PM PDT · 16558 days ago · 7 km deep · 77 km away
26. 2.34km NE of Carson, CAWed, Jun 3, 11:11 PM PDT · 16557 days ago · 18 km deep · 53 km away
27. 3.63km WNW of Lakeland Village, CAThu, Jun 4, 4:51 AM PDT · 16557 days ago · 14 km deep · 39 km away
28. 2.74km W of Lake Elsinore, CAThu, Jun 4, 6:40 AM PDT · 16557 days ago · 11 km deep · 38 km away
29. 3.13km WNW of Lakeland Village, CAThu, Jun 4, 7:26 AM PDT · 16557 days ago · 12 km deep · 39 km away
30. 1.99km ENE of Aguanga, CAThu, Jun 4, 12:17 PM PDT · 16557 days ago · 5 km deep · 97 km away
31. 1.81km E of Loma Linda, CAFri, Jun 5, 6:54 PM PDT · 16556 days ago · 16 km deep · 44 km away
32. 1.86km WNW of Mira Loma, CAFri, Jun 5, 8:40 PM PDT · 16556 days ago · 12 km deep · 17 km away
33. 1.81km SSE of Caltech, Pasadena, CASat, Jun 6, 12:14 AM PDT · 16555 days ago · 14 km deep · 48 km away
34. 1.78km NNW of Fontana, CASat, Jun 6, 9:18 PM PDT · 16555 days ago · 5 km deep · 35 km away
35. 2.111km NE of Aguanga, CASun, Jun 7, 8:26 AM PDT · 16554 days ago · -1 km deep · 93 km away
36. 1.56km WNW of Anza, CASun, Jun 7, 7:06 PM PDT · 16554 days ago · 1 km deep · 94 km away
37. 2.211km NE of Aguanga, CASun, Jun 7, 8:37 PM PDT · 16554 days ago · -1 km deep · 93 km away
38. 1.50km E of Compton, CAWed, Jun 10, 7:06 PM PDT · 16551 days ago · 5 km deep · 49 km away
39. 1.65km NNW of Running Springs, CASat, Jun 13, 10:49 PM PDT · 16548 days ago · 2 km deep · 66 km away
40. 2.17km ESE of Running Springs, CASun, Jun 14, 5:15 PM PDT · 16547 days ago · 6 km deep · 68 km away
41. 1.59km NE of Cabazon, CASun, Jun 14, 6:21 PM PDT · 16547 days ago · 12 km deep · 91 km away
42. 1.511km NE of Aguanga, CAMon, Jun 15, 1:07 AM PDT · 16546 days ago · 3 km deep · 94 km away
43. 1.612km NE of Cabazon, CAMon, Jun 15, 11:53 AM PDT · 16546 days ago · 14 km deep · 92 km away
44. 1.62km NNE of Colton, CAMon, Jun 15, 8:38 PM PDT · 16546 days ago · 16 km deep · 42 km away
45. 2.612km SSE of Malibu Beach, CAWed, Jun 17, 10:31 PM PDT · 16544 days ago · 8 km deep · 90 km away
46. 2.010km S of Malibu Beach, CAThu, Jun 18, 1:00 AM PDT · 16543 days ago · 9 km deep · 93 km away
47. 2.32km NNE of Loma Linda, CAThu, Jun 18, 8:13 AM PDT · 16543 days ago · 13 km deep · 45 km away
48. 1.610km WNW of Aguanga, CAThu, Jun 18, 6:59 PM PDT · 16543 days ago · 5 km deep · 82 km away
49. 1.52km SSE of Loma Linda, CAFri, Jun 19, 9:19 AM PDT · 16542 days ago · 4 km deep · 43 km away
50. 2.010km NNW of Anza, CAFri, Jun 19, 5:00 PM PDT · 16542 days ago · 13 km deep · 95 km away
51. 2.610km NE of Aguanga, CASat, Jun 20, 12:49 PM PDT · 16541 days ago · 2 km deep · 94 km away
52. 1.711km NE of Aguanga, CASat, Jun 20, 12:51 PM PDT · 16541 days ago · 1 km deep · 94 km away
53. 1.96km SSE of Newport Beach, CASun, Jun 21, 1:23 AM PDT · 16540 days ago · 5 km deep · 40 km away
54. 1.511km WSW of Anza, CASun, Jun 21, 2:24 PM PDT · 16540 days ago · 1 km deep · 94 km away
55. 1.911km NE of Aguanga, CASun, Jun 21, 4:22 PM PDT · 16540 days ago · -1 km deep · 94 km away
56. 2.010km NE of Aguanga, CASun, Jun 21, 6:14 PM PDT · 16540 days ago · 3 km deep · 94 km away
57. 1.80km ENE of Seal Beach, CAMon, Jun 22, 7:59 AM PDT · 16539 days ago · 2 km deep · 41 km away
58. 2.74km WNW of Seal Beach, CAMon, Jun 22, 11:03 AM PDT · 16539 days ago · 14 km deep · 44 km away
59. 1.910km NE of Aguanga, CATue, Jun 23, 1:08 AM PDT · 16538 days ago · 4 km deep · 94 km away
60. 2.012km S of Rancho Palos Verdes, CATue, Jun 23, 11:26 AM PDT · 16538 days ago · 5 km deep · 71 km away

The first 60 of 110.

Before

1. 1.611km WSW of Anza, CASun, May 17, 2:53 PM PDT · 16575 days ago · -2 km deep · 95 km away
2. 1.611km SW of Morongo Valley, CASun, May 17, 2:40 PM PDT · 16575 days ago · 15 km deep · 95 km away
3. 2.23km SSW of Los Angeles, CASat, May 16, 6:56 PM PDT · 16576 days ago · 4 km deep · 55 km away
4. 1.510km WSW of Anza, CASat, May 16, 1:02 AM PDT · 16576 days ago · 4 km deep · 94 km away
5. 2.520km S of San Pedro, CAFri, May 15, 9:16 PM PDT · 16577 days ago · 4 km deep · 67 km away
6. 1.86km SW of Banning, CATue, May 12, 3:31 PM PDT · 16580 days ago · 11 km deep · 72 km away
7. 1.56km NW of San Jacinto, CAMon, May 11, 8:56 PM PDT · 16581 days ago · 13 km deep · 64 km away
8. 2.06km W of Big Bear Lake, CAMon, May 11, 4:09 PM PDT · 16581 days ago · 5 km deep · 76 km away
9. 1.522km S of Rancho Palos Verdes, CASun, May 10, 6:31 AM PDT · 16582 days ago · 5 km deep · 74 km away
10. 2.511km E of Santa Clarita, CAFri, May 8, 9:38 PM PDT · 16584 days ago · 5 km deep · 87 km away
11. 1.710km NE of Aguanga, CAFri, May 8, 1:21 PM PDT · 16584 days ago · 2 km deep · 95 km away
12. 2.13km NNW of Maywood, CAFri, May 8, 1:03 PM PDT · 16584 days ago · 14 km deep · 49 km away
13. 1.913km SSE of Malibu Beach, CAThu, May 7, 3:26 AM PDT · 16585 days ago · 13 km deep · 90 km away
14. 2.83km NE of Colton, CAThu, May 7, 12:37 AM PDT · 16585 days ago · 3 km deep · 43 km away
15. 2.53km NE of Colton, CAWed, May 6, 11:04 PM PDT · 16586 days ago · 7 km deep · 43 km away
16. 1.610km WSW of Garnet, CAWed, May 6, 10:10 PM PDT · 16586 days ago · 14 km deep · 96 km away
17. 1.910km ENE of Aguanga, CAWed, May 6, 6:26 PM PDT · 16586 days ago · 2 km deep · 95 km away
18. 1.511km WSW of Anza, CAWed, May 6, 11:56 AM PDT · 16586 days ago · 3 km deep · 94 km away
19. 3.04km NW of Huntington Beach, CATue, May 5, 10:56 PM PDT · 16587 days ago · 7 km deep · 37 km away
20. 1.610km NE of Aguanga, CATue, May 5, 10:17 PM PDT · 16587 days ago · 3 km deep · 94 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci516264. Read Sat, Oct 3, 2026, 5:34 PM UTC.