M1.8 earthquake 44km WSW of Encinitas, CA

Magnitude

1.8 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Dec 18, 1986, 1:22 AM PST

UTC

1986-12-18 09:22:57 UTC

Depth

4.9 km (3.1 mi), shallow

Epicenter

32.921° N, 117.737° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.6 km horizontally, 31.6 km in depth

Depth from

Operator assigned

Station coverage gap

312°, poorly surrounded by stations

Stations used

8

• Encinitas, CaliforniaPopulation 62,930. Forecast43 kmWSW
• Carlsbad, CaliforniaPopulation 114,746. Forecast45 kmSW
• San Diego, CaliforniaPopulation 1,404,452. Forecast58 kmWNW

After

1. 1.841km WSW of Carlsbad, CAThu, Dec 18, 1:43 AM PST · 14536 days ago · 6 km deep · 9 km away
2. 1.747km ENE of San Clemente Is. (SE tip), CAThu, Dec 18, 5:27 AM PST · 14536 days ago · 6 km deep · 15 km away
3. 2.14km SSE of Lake Henshaw, CAThu, Dec 18, 8:14 PM PST · 14535 days ago · 10 km deep · 97 km away
4. 3.149km WSW of Carlsbad, CAFri, Dec 19, 1:01 AM PST · 14535 days ago · 6 km deep · 10 km away
5. 2.540km WSW of Carlsbad, CAFri, Dec 19, 3:18 AM PST · 14535 days ago · 6 km deep · 7 km away
6. 2.546km WSW of Carlsbad, CAFri, Dec 19, 5:17 AM PST · 14535 days ago · 6 km deep · 8 km away
7. 2.343km WSW of Encinitas, CAFri, Dec 19, 5:32 PM PST · 14535 days ago · 5 km deep · 2 km away
8. 2.450km ENE of San Clemente Is. (SE tip), CASat, Dec 20, 1:46 AM PST · 14534 days ago · 6 km deep · 13 km away
9. 3.748km WSW of Carlsbad, CASat, Dec 20, 4:19 AM PST · 14534 days ago · 6 km deep · 10 km away
10. 2.547km WSW of Carlsbad, CASat, Dec 20, 4:31 AM PST · 14534 days ago · 6 km deep · 9 km away
11. 2.646km WSW of Carlsbad, CASat, Dec 20, 8:56 AM PST · 14534 days ago · 5 km deep · 12 km away
12. 2.645km WSW of Carlsbad, CASat, Dec 20, 10:19 AM PST · 14534 days ago · 5 km deep · 7 km away
13. 2.538km WSW of Encinitas, CASun, Dec 21, 4:18 AM PST · 14533 days ago · 5 km deep · 5 km away
14. 1.643km SSW of San Clemente, CAMon, Dec 22, 3:07 PM PST · 14532 days ago · 5 km deep · 19 km away
15. 2.642km WSW of Carlsbad, CAMon, Dec 22, 3:29 PM PST · 14532 days ago · 5 km deep · 6 km away
16. 1.838km WSW of Carlsbad, CATue, Dec 23, 12:52 AM PST · 14531 days ago · 5 km deep · 16 km away
17. 1.744km WSW of Carlsbad, CATue, Dec 23, 11:57 AM PST · 14531 days ago · 5 km deep · 4 km away
18. 2.547km WSW of Carlsbad, CATue, Dec 23, 6:01 PM PST · 14531 days ago · 5 km deep · 13 km away
19. 2.42km N of Palomar Observatory, CATue, Dec 23, 7:15 PM PST · 14530 days ago · 8 km deep · 96 km away
20. 2.430km WSW of La Jolla, CATue, Dec 23, 9:04 PM PST · 14530 days ago · 5 km deep · 24 km away
21. 1.646km WSW of Carlsbad, CAWed, Dec 24, 12:55 AM PST · 14530 days ago · 5 km deep · 7 km away
22. 2.440km WSW of Carlsbad, CAWed, Dec 24, 3:50 AM PST · 14530 days ago · 5 km deep · 8 km away
23. 2.741km WSW of Carlsbad, CAWed, Dec 24, 8:33 AM PST · 14530 days ago · 5 km deep · 8 km away
24. 2.548km WSW of Carlsbad, CAWed, Dec 24, 1:27 PM PST · 14530 days ago · 5 km deep · 13 km away
25. 2.339km WSW of Carlsbad, CAWed, Dec 24, 8:09 PM PST · 14529 days ago · 6 km deep · 7 km away
26. 2.445km WSW of Carlsbad, CAThu, Dec 25, 12:52 AM PST · 14529 days ago · 9 km deep · 14 km away
27. 2.334km WSW of Carlsbad, CAThu, Dec 25, 1:07 AM PST · 14529 days ago · 5 km deep · 12 km away
28. 2.541km WSW of Carlsbad, CAThu, Dec 25, 9:09 AM PST · 14529 days ago · 6 km deep · 6 km away
29. 3.114km ENE of San Clemente Is. (SE tip), CAFri, Dec 26, 9:07 AM PST · 14528 days ago · 6 km deep · 44 km away
30. 1.942km WSW of Encinitas, CAFri, Dec 26, 7:42 PM PST · 14527 days ago · 5 km deep · 3 km away
31. 2.548km WSW of Carlsbad, CAFri, Dec 26, 8:52 PM PST · 14527 days ago · 6 km deep · 9 km away
32. 2.445km WSW of Carlsbad, CAFri, Dec 26, 10:50 PM PST · 14527 days ago · 6 km deep · 5 km away
33. 2.439km WSW of Carlsbad, CASat, Dec 27, 1:48 AM PST · 14527 days ago · 6 km deep · 6 km away
34. 2.647km WSW of Carlsbad, CASun, Dec 28, 4:54 PM PST · 14526 days ago · 6 km deep · 11 km away
35. 2.445km WSW of Carlsbad, CASun, Dec 28, 7:00 PM PST · 14525 days ago · 6 km deep · 8 km away
36. 2.546km WSW of Carlsbad, CASun, Dec 28, 9:35 PM PST · 14525 days ago · 6 km deep · 8 km away
37. 2.942km WSW of Carlsbad, CAMon, Dec 29, 2:05 AM PST · 14525 days ago · 6 km deep · 7 km away
38. 2.942km WSW of Carlsbad, CAMon, Dec 29, 10:35 AM PST · 14525 days ago · 5 km deep · 10 km away
39. 2.641km WSW of Carlsbad, CAMon, Dec 29, 12:54 PM PST · 14525 days ago · 5 km deep · 6 km away
40. 2.226km SW of Dana Point, CATue, Dec 30, 8:56 AM PST · 14524 days ago · 5 km deep · 42 km away
41. 3.146km WSW of Carlsbad, CATue, Dec 30, 1:48 PM PST · 14524 days ago · 6 km deep · 6 km away
42. 1.643km WSW of Carlsbad, CAWed, Dec 31, 2:05 AM PST · 14523 days ago · 5 km deep · 8 km away
43. 2.746km WSW of Carlsbad, CAWed, Dec 31, 3:08 AM PST · 14523 days ago · 6 km deep · 9 km away
44. 3.044km WSW of Carlsbad, CAWed, Dec 31, 5:48 PM PST · 14523 days ago · 6 km deep · 7 km away
45. 2.542km WSW of Carlsbad, CAWed, Dec 31, 6:11 PM PST · 14523 days ago · 6 km deep · 8 km away
46. 3.346km WSW of Carlsbad, CAWed, Dec 31, 7:41 PM PST · 14522 days ago · 6 km deep · 7 km away
47. 2.744km WSW of Carlsbad, CAWed, Dec 31, 8:26 PM PST · 14522 days ago · 6 km deep · 9 km away
48. 2.440km WSW of Carlsbad, CAWed, Dec 31, 9:03 PM PST · 14522 days ago · 5 km deep · 11 km away
49. 2.742km WSW of Carlsbad, CAThu, Jan 1, 8:13 AM PST · 14522 days ago · 5 km deep · 8 km away
50. 2.549km WSW of Carlsbad, CAFri, Jan 2, 12:30 AM PST · 14521 days ago · 6 km deep · 11 km away
51. 3.044km WSW of Carlsbad, CASat, Jan 3, 4:12 AM PST · 14520 days ago · 6 km deep · 10 km away
52. 2.542km WSW of Carlsbad, CASun, Jan 4, 3:32 AM PST · 14519 days ago · 6 km deep · 9 km away
53. 3.147km WSW of Carlsbad, CAMon, Jan 5, 2:05 PM PST · 14518 days ago · 9 km deep · 15 km away
54. 2.839km WSW of Carlsbad, CAWed, Jan 7, 4:22 AM PST · 14516 days ago · 5 km deep · 11 km away
55. 2.542km WSW of Carlsbad, CAWed, Jan 7, 9:27 PM PST · 14515 days ago · 5 km deep · 9 km away
56. 2.57km WSW of Aguanga, CAThu, Jan 8, 9:42 AM PST · 14515 days ago · 10 km deep · 93 km away
57. 2.741km WSW of Encinitas, CAThu, Jan 8, 9:09 PM PST · 14514 days ago · 6 km deep · 3 km away
58. 2.747km WSW of Carlsbad, CAFri, Jan 9, 9:30 PM PST · 14513 days ago · 6 km deep · 15 km away
59. 2.746km WSW of Carlsbad, CASat, Jan 10, 4:54 AM PST · 14513 days ago · 6 km deep · 9 km away
60. 1.644km WSW of Carlsbad, CASat, Jan 10, 5:26 PM PST · 14513 days ago · 5 km deep · 7 km away

The first 60 of 130.

Before

1. 1.843km WSW of Carlsbad, CATue, Dec 16, 8:48 PM PST · 14537 days ago · 5 km deep · 8 km away
2. 2.548km WSW of Carlsbad, CATue, Dec 16, 3:44 PM PST · 14538 days ago · 5 km deep · 13 km away
3. 2.442km WSW of Carlsbad, CAMon, Dec 15, 10:08 PM PST · 14538 days ago · 6 km deep · 8 km away
4. 2.536km WSW of Carlsbad, CASun, Dec 14, 3:47 PM PST · 14540 days ago · 6 km deep · 10 km away
5. 2.542km WSW of Carlsbad, CASun, Dec 14, 10:02 AM PST · 14540 days ago · 6 km deep · 15 km away
6. 2.244km WSW of Carlsbad, CASun, Dec 14, 4:08 AM PST · 14540 days ago · 6 km deep · 7 km away
7. 2.341km WSW of Carlsbad, CASat, Dec 13, 11:54 PM PST · 14540 days ago · 6 km deep · 17 km away
8. 2.445km WSW of Encinitas, CASat, Dec 13, 11:56 AM PST · 14541 days ago · 5 km deep · 1 km away
9. 2.444km WSW of Carlsbad, CASat, Dec 13, 8:52 AM PST · 14541 days ago · 6 km deep · 8 km away
10. 2.444km WSW of Carlsbad, CASat, Dec 13, 7:44 AM PST · 14541 days ago · 6 km deep · 14 km away
11. 2.946km WSW of Carlsbad, CASat, Dec 13, 6:17 AM PST · 14541 days ago · 6 km deep · 15 km away
12. 2.440km WSW of Carlsbad, CAFri, Dec 12, 8:38 PM PST · 14541 days ago · 5 km deep · 11 km away
13. 2.843km WSW of Carlsbad, CAFri, Dec 12, 5:18 PM PST · 14542 days ago · 6 km deep · 4 km away
14. 1.864km SE of San Clemente Is. (SE tip), CAThu, Dec 11, 5:26 PM PST · 14543 days ago · 6 km deep · 68 km away
15. 1.838km WSW of Carlsbad, CAThu, Dec 11, 3:22 AM PST · 14543 days ago · 5 km deep · 11 km away
16. 2.843km WSW of Carlsbad, CAThu, Dec 11, 2:35 AM PST · 14543 days ago · 6 km deep · 10 km away
17. 2.444km WSW of Encinitas, CAWed, Dec 10, 5:35 PM PST · 14544 days ago · 6 km deep · 3 km away
18. 2.947km WSW of Carlsbad, CAWed, Dec 10, 1:49 AM PST · 14544 days ago · 6 km deep · 6 km away
19. 1.641km WSW of Carlsbad, CAWed, Dec 10, 12:05 AM PST · 14544 days ago · 6 km deep · 9 km away
20. 2.948km WSW of Carlsbad, CATue, Dec 9, 12:45 PM PST · 14545 days ago · 6 km deep · 8 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci612246. Read Mon, Oct 5, 2026, 1:51 PM UTC.