M3.0 earthquake 40km WSW of Encinitas, CA

Magnitude

3.0 (ML, local (Richter)), minor

Magnitude from

Southern California Seismic Network

Local time

Mon, Apr 20, 1987, 7:36 PM PDT

UTC

1987-04-21 02:36:32 UTC

Depth

5.6 km (3.5 mi), shallow

Epicenter

32.935° N, 117.707° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

Operator assigned

Station coverage gap

156°

Stations used

0

• Encinitas, CaliforniaPopulation 62,930. Forecast40 kmWSW
• Carlsbad, CaliforniaPopulation 114,746. Forecast41 kmSW
• San Diego, CaliforniaPopulation 1,404,452. Forecast56 kmWNW

After

1. 2.540km WSW of Carlsbad, CAMon, Apr 20, 10:22 PM PDT · 14409 days ago · 5 km deep · 4 km away
2. 2.946km ESE of San Clemente Is. (SE tip), CAWed, Apr 22, 3:06 AM PDT · 14408 days ago · 6 km deep · 36 km away
3. 2.736km WSW of Carlsbad, CAWed, Apr 22, 9:42 PM PDT · 14407 days ago · 5 km deep · 8 km away
4. 2.842km WSW of Carlsbad, CAThu, Apr 23, 9:35 PM PDT · 14406 days ago · 6 km deep · 5 km away
5. 2.312km ENE of Trabuco Canyon, CAFri, Apr 24, 11:30 AM PDT · 14406 days ago · 4 km deep · 88 km away
6. 2.311km WNW of Lakeland Village, CAFri, Apr 24, 7:19 PM PDT · 14406 days ago · 4 km deep · 88 km away
7. 2.740km WSW of Carlsbad, CASat, Apr 25, 11:46 PM PDT · 14404 days ago · 5 km deep · 9 km away
8. 2.547km E of San Clemente Is. (SE tip), CAMon, Apr 27, 3:25 AM PDT · 14403 days ago · 5 km deep · 14 km away
9. 2.08km WSW of Aguanga, CATue, Apr 28, 11:10 PM PDT · 14401 days ago · 16 km deep · 88 km away
10. 2.840km WSW of Carlsbad, CAWed, Apr 29, 6:42 PM PDT · 14401 days ago · 6 km deep · 13 km away
11. 2.840km WSW of Carlsbad, CAThu, Apr 30, 9:48 AM PDT · 14400 days ago · 5 km deep · 10 km away
12. 2.338km WSW of Carlsbad, CAFri, May 1, 12:37 PM PDT · 14399 days ago · 6 km deep · 6 km away
13. 2.01km NW of Lake Henshaw, CAFri, May 1, 7:09 PM PDT · 14399 days ago · 5 km deep · 94 km away
14. 2.540km WSW of Carlsbad, CASat, May 2, 5:54 AM PDT · 14398 days ago · 6 km deep · 4 km away
15. 2.939km WSW of Carlsbad, CASat, May 2, 10:03 AM PDT · 14398 days ago · 6 km deep · 12 km away
16. 2.641km WSW of Encinitas, CASat, May 2, 7:34 PM PDT · 14398 days ago · 6 km deep · 1 km away
17. 2.532km WSW of Carlsbad, CASat, May 2, 7:58 PM PDT · 14398 days ago · 5 km deep · 11 km away
18. 2.539km WSW of Encinitas, CASat, May 2, 9:05 PM PDT · 14397 days ago · 6 km deep · 3 km away
19. 2.747km WSW of Carlsbad, CASat, May 2, 9:31 PM PDT · 14397 days ago · 5 km deep · 10 km away
20. 1.94km WNW of Palomar Observatory, CASun, May 3, 1:43 PM PDT · 14397 days ago · 14 km deep · 89 km away
21. 2.446km ENE of San Clemente Is. (SE tip), CASun, May 3, 3:00 PM PDT · 14397 days ago · 6 km deep · 22 km away
22. 2.939km WSW of Carlsbad, CASun, May 3, 3:17 PM PDT · 14397 days ago · 6 km deep · 9 km away
23. 2.738km WSW of Carlsbad, CASun, May 3, 3:30 PM PDT · 14397 days ago · 5 km deep · 12 km away
24. 2.55km W of Palomar Observatory, CASun, May 3, 5:54 PM PDT · 14397 days ago · 12 km deep · 87 km away
25. 3.340km WSW of Carlsbad, CAMon, May 4, 1:43 AM PDT · 14396 days ago · 6 km deep · 6 km away
26. 2.34km SSE of Palomar Observatory, CAMon, May 4, 3:17 PM PDT · 14396 days ago · 10 km deep · 91 km away
27. 2.59km S of Corona, CATue, May 5, 7:29 AM PDT · 14395 days ago · 1 km deep · 96 km away
28. 2.748km WSW of Carlsbad, CATue, May 5, 1:04 PM PDT · 14395 days ago · 6 km deep · 16 km away
29. 2.646km WSW of Carlsbad, CATue, May 5, 9:05 PM PDT · 14394 days ago · 5 km deep · 13 km away
30. 2.844km WSW of Carlsbad, CAWed, May 6, 8:51 AM PDT · 14394 days ago · 6 km deep · 5 km away
31. 2.735km WSW of Encinitas, CAWed, May 6, 5:53 PM PDT · 14394 days ago · 5 km deep · 6 km away
32. 2.847km WSW of Carlsbad, CAThu, May 7, 12:27 PM PDT · 14393 days ago · 6 km deep · 15 km away
33. 2.543km WSW of Carlsbad, CAThu, May 7, 9:01 PM PDT · 14392 days ago · 6 km deep · 7 km away
34. 2.746km WSW of Carlsbad, CAFri, May 8, 1:34 AM PDT · 14392 days ago · 5 km deep · 8 km away
35. 2.647km WSW of Carlsbad, CAFri, May 8, 2:45 PM PDT · 14392 days ago · 6 km deep · 11 km away
36. 2.24km SE of Palomar Observatory, CASat, May 9, 3:09 AM PDT · 14391 days ago · 9 km deep · 92 km away
37. 2.548km WSW of Carlsbad, CASun, May 10, 3:37 AM PDT · 14390 days ago · 6 km deep · 12 km away
38. 2.742km WSW of Carlsbad, CASun, May 10, 9:08 AM PDT · 14390 days ago · 6 km deep · 9 km away
39. 2.714km WSW of Imperial Beach, CASun, May 10, 4:33 PM PDT · 14390 days ago · 5 km deep · 59 km away
40. 2.640km WSW of Carlsbad, CASun, May 10, 11:28 PM PDT · 14389 days ago · 5 km deep · 6 km away
41. 3.449km WSW of Carlsbad, CAMon, May 11, 3:23 AM PDT · 14389 days ago · 6 km deep · 11 km away
42. 2.846km WSW of Encinitas, CAMon, May 11, 8:06 PM PDT · 14389 days ago · 5 km deep · 6 km away
43. 2.646km WSW of Carlsbad, CATue, May 12, 12:24 PM PDT · 14388 days ago · 5 km deep · 10 km away
44. 2.746km WSW of Carlsbad, CATue, May 12, 3:58 PM PDT · 14388 days ago · 5 km deep · 12 km away
45. 2.447km SSW of San Clemente, CATue, May 12, 8:25 PM PDT · 14388 days ago · 6 km deep · 20 km away
46. 2.641km WSW of Carlsbad, CATue, May 12, 10:17 PM PDT · 14387 days ago · 6 km deep · 8 km away
47. 2.32km WSW of Lake Henshaw, CAThu, May 14, 3:35 PM PDT · 14386 days ago · 15 km deep · 92 km away
48. 2.945km WSW of Carlsbad, CAThu, May 14, 7:41 PM PDT · 14386 days ago · 5 km deep · 11 km away
49. 2.945km WSW of Encinitas, CAThu, May 14, 9:09 PM PDT · 14385 days ago · 5 km deep · 5 km away
50. 2.47km SSE of Lake Henshaw, CAFri, May 15, 5:48 AM PDT · 14385 days ago · 22 km deep · 96 km away
51. 2.13km WSW of Lake Henshaw, CAFri, May 15, 7:32 AM PDT · 14385 days ago · 14 km deep · 92 km away
52. 2.949km WSW of Carlsbad, CAFri, May 15, 8:45 PM PDT · 14384 days ago · 6 km deep · 12 km away
53. 2.540km WSW of Carlsbad, CASat, May 16, 1:40 AM PDT · 14384 days ago · 5 km deep · 3 km away
54. 2.740km WSW of Carlsbad, CASat, May 16, 10:42 PM PDT · 14383 days ago · 5 km deep · 8 km away
55. 2.843km WSW of Encinitas, CASun, May 17, 1:09 AM PDT · 14383 days ago · 5 km deep · 3 km away
56. 2.745km WSW of Encinitas, CASun, May 17, 11:36 PM PDT · 14382 days ago · 6 km deep · 5 km away
57. 2.745km WSW of Carlsbad, CAMon, May 18, 11:44 AM PDT · 14382 days ago · 6 km deep · 6 km away
58. 2.929km ESE of San Clemente Is. (SE tip), CATue, May 19, 12:14 AM PDT · 14381 days ago · 6 km deep · 38 km away
59. 2.546km WSW of Carlsbad, CAWed, May 20, 4:25 AM PDT · 14380 days ago · 6 km deep · 14 km away
60. 2.647km WSW of Carlsbad, CAWed, May 20, 5:44 AM PDT · 14380 days ago · 6 km deep · 16 km away

The first 60 of 113.

Before

1. 2.744km W of La Jolla, CAMon, Apr 20, 7:12 PM PDT · 14410 days ago · 5 km deep · 8 km away
2. 2.941km WSW of Encinitas, CAMon, Apr 20, 6:15 PM PDT · 14410 days ago · 5 km deep · 1 km away
3. 3.447km WSW of Carlsbad, CASun, Apr 19, 5:08 PM PDT · 14411 days ago · 6 km deep · 9 km away
4. 2.542km WSW of Encinitas, CASun, Apr 19, 7:08 AM PDT · 14411 days ago · 6 km deep · 2 km away
5. 2.06km ENE of Wildomar, CAThu, Apr 16, 6:03 PM PDT · 14414 days ago · 11 km deep · 89 km away
6. 2.840km WSW of Carlsbad, CAThu, Apr 16, 1:27 PM PDT · 14414 days ago · 5 km deep · 6 km away
7. 1.915km SSW of San Pedro, CAThu, Apr 16, 1:28 AM PDT · 14414 days ago · 6 km deep · 96 km away
8. 2.642km WSW of Carlsbad, CAWed, Apr 15, 10:28 PM PDT · 14414 days ago · 5 km deep · 10 km away
9. 2.545km WSW of Carlsbad, CAWed, Apr 15, 2:03 AM PDT · 14415 days ago · 6 km deep · 13 km away
10. 2.544km WSW of Carlsbad, CAMon, Apr 13, 3:32 AM PDT · 14417 days ago · 5 km deep · 9 km away
11. 2.747km WSW of Carlsbad, CASun, Apr 12, 10:56 PM PDT · 14417 days ago · 5 km deep · 9 km away
12. 2.746km WSW of Carlsbad, CASun, Apr 12, 9:06 PM PDT · 14417 days ago · 5 km deep · 6 km away
13. 2.642km WSW of Carlsbad, CASun, Apr 12, 4:54 PM PDT · 14418 days ago · 6 km deep · 7 km away
14. 2.843km WSW of Carlsbad, CASun, Apr 12, 4:35 PM PDT · 14418 days ago · 6 km deep · 8 km away
15. 2.644km WSW of Carlsbad, CASun, Apr 12, 1:30 PM PDT · 14418 days ago · 6 km deep · 11 km away
16. 2.38km N of Lake Henshaw, CASat, Apr 11, 11:11 AM PDT · 14419 days ago · 14 km deep · 97 km away
17. 2.739km WSW of Carlsbad, CAFri, Apr 10, 2:06 PM PDT · 14420 days ago · 6 km deep · 7 km away
18. 2.842km WSW of Carlsbad, CAFri, Apr 10, 4:15 AM PDT · 14420 days ago · 5 km deep · 9 km away
19. 2.939km WSW of Carlsbad, CAFri, Apr 10, 1:31 AM PDT · 14420 days ago · 5 km deep · 4 km away
20. 3.649km WSW of Carlsbad, CAFri, Apr 10, 1:24 AM PDT · 14420 days ago · 6 km deep · 11 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci720964. Read Fri, Oct 2, 2026, 3:10 PM UTC.