M1.8 earthquake 15 km SSE of Livermore, California

Magnitude

1.8 (md), micro

Local time

Wed, Mar 11, 1987, 5:15 PM PST

UTC

1987-03-12 01:15:04 UTC

Depth

4.2 km (2.6 mi), shallow

Epicenter

37.565° N, 121.680° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.14

Depth from

From location

Station coverage gap

41°

Stations used

37

• Livermore, CaliforniaPopulation 88,126. Forecast15 kmSSE
• Fremont, CaliforniaPopulation 232,206. Forecast27 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast498 kmNW

After

1. 1.86 km ENE of Hollister, CaliforniaThu, Mar 12, 2:47 AM PST · 14439 days ago · 6 km deep · 82 km away
2. 1.96 km NE of Tres Pinos, CaliforniaThu, Mar 12, 6:29 PM PST · 14438 days ago · 8 km deep · 89 km away
3. 1.79 km SSW of Tres Pinos, CaliforniaThu, Mar 12, 9:47 PM PST · 14438 days ago · 3 km deep · 100 km away
4. 1.69 km SE of Sunol, CaliforniaFri, Mar 13, 10:16 PM PST · 14437 days ago · 10 km deep · 12 km away
5. 1.918 km NE of East Foothills, CaliforniaSat, Mar 14, 9:59 PM PST · 14436 days ago · 5 km deep · 6 km away
6. 2.020 km ENE of East Foothills, CaliforniaMon, Mar 16, 3:04 AM PST · 14435 days ago · 7 km deep · 11 km away
7. 1.59 km NNE of Hollister, CaliforniaMon, Mar 16, 6:41 AM PST · 14435 days ago · 7 km deep · 76 km away
8. 1.618 km SSE of Livermore, CaliforniaMon, Mar 16, 4:20 PM PST · 14435 days ago · 4 km deep · 4 km away
9. 1.66 km NE of Ridgemark, CaliforniaTue, Mar 17, 9:14 AM PST · 14434 days ago · 4 km deep · 85 km away
10. 1.85 km NNE of Tres Pinos, CaliforniaWed, Mar 18, 1:30 PM PST · 14433 days ago · 6 km deep · 88 km away
11. 1.616 km SSE of Livermore, CaliforniaWed, Mar 18, 1:54 PM PST · 14433 days ago · 6 km deep · 1 km away
12. 1.66 km ENE of Hollister, CaliforniaThu, Mar 19, 4:22 AM PST · 14432 days ago · 6 km deep · 82 km away
13. 2.710 km SW of Ridgemark, CaliforniaThu, Mar 19, 7:08 PM PST · 14431 days ago · 8 km deep · 93 km away
14. 2.417 km NE of East Foothills, CaliforniaFri, Mar 20, 8:50 AM PST · 14431 days ago · 6 km deep · 7 km away
15. 2.910 km NNW of Hollister, CaliforniaFri, Mar 20, 11:28 AM PST · 14431 days ago · 2 km deep · 72 km away
16. 1.66 km NE of Interlaken, CaliforniaFri, Mar 20, 5:18 PM PST · 14430 days ago · 10 km deep · 64 km away
17. 1.513 km ENE of East Foothills, CaliforniaSat, Mar 21, 10:08 AM PST · 14430 days ago · 8 km deep · 13 km away
18. 2.1Northern CaliforniaSat, Mar 21, 9:17 PM PST · 14429 days ago · 5 km deep · 24 km away
19. 2.07 km NNE of East Foothills, CaliforniaSun, Mar 22, 10:48 AM PST · 14429 days ago · 7 km deep · 16 km away
20. 1.918 km NE of East Foothills, CaliforniaSun, Mar 22, 7:00 PM PST · 14428 days ago · 6 km deep · 6 km away
21. 1.79 km ESE of Seven Trees, CaliforniaMon, Mar 23, 5:15 AM PST · 14428 days ago · 5 km deep · 37 km away
22. 2.011 km S of Pescadero, CaliforniaTue, Mar 24, 9:38 AM PST · 14427 days ago · 14 km deep · 76 km away
23. 1.614 km E of Seven Trees, CaliforniaTue, Mar 24, 1:25 PM PST · 14427 days ago · 2 km deep · 30 km away
24. 1.814 km E of Seven Trees, CaliforniaTue, Mar 24, 1:29 PM PST · 14427 days ago · 2 km deep · 30 km away
25. 2.014 km E of Seven Trees, CaliforniaTue, Mar 24, 1:36 PM PST · 14427 days ago · 2 km deep · 30 km away
26. 1.92 km NNE of Aromas, CaliforniaTue, Mar 24, 11:29 PM PST · 14426 days ago · 6 km deep · 73 km away
27. 1.52 km N of Aromas, CaliforniaWed, Mar 25, 9:48 AM PST · 14426 days ago · 6 km deep · 73 km away
28. 1.818 km NE of East Foothills, CaliforniaWed, Mar 25, 10:14 AM PST · 14426 days ago · 6 km deep · 6 km away
29. 2.217 km SSE of Livermore, CaliforniaThu, Mar 26, 8:56 AM PST · 14425 days ago · 1 km deep · 2 km away
30. 1.94 km WSW of Broadmoor, CaliforniaThu, Mar 26, 12:17 PM PST · 14425 days ago · 8 km deep · 76 km away
31. 2.48 km ENE of San Martin, CaliforniaThu, Mar 26, 10:46 PM PST · 14424 days ago · 8 km deep · 51 km away
32. 1.815 km SSE of Livermore, CaliforniaFri, Mar 27, 9:45 AM PST · 14424 days ago · 4 km deep · 0 km away
33. 2.918 km SSE of Livermore, CaliforniaSat, Mar 28, 1:12 PM PST · 14423 days ago · 2 km deep · 4 km away
34. 1.5Northern CaliforniaSat, Mar 28, 10:34 PM PST · 14422 days ago · 13 km deep · 6 km away
35. 2.020 km NE of East Foothills, CaliforniaSun, Mar 29, 12:53 AM PST · 14422 days ago · 1 km deep · 6 km away
36. 1.76 km NNE of Tres Pinos, CaliforniaSun, Mar 29, 5:44 AM PST · 14422 days ago · 4 km deep · 86 km away
37. 1.514 km E of Seven Trees, CaliforniaSun, Mar 29, 6:11 AM PST · 14422 days ago · 1 km deep · 31 km away
38. 1.61 km ESE of Tres Pinos, CaliforniaMon, Mar 30, 5:49 PM PST · 14420 days ago · 8 km deep · 93 km away
39. 1.94 km ESE of Interlaken, CaliforniaMon, Mar 30, 10:19 PM PST · 14420 days ago · 10 km deep · 70 km away
40. 1.820 km NE of East Foothills, CaliforniaTue, Mar 31, 9:06 PM PST · 14419 days ago · 0 km deep · 6 km away
41. 1.712 km NE of East Foothills, CaliforniaWed, Apr 1, 1:25 AM PST · 14419 days ago · 8 km deep · 12 km away
42. 2.120 km NE of East Foothills, CaliforniaWed, Apr 1, 10:03 AM PST · 14419 days ago · 1 km deep · 6 km away
43. 1.920 km NE of East Foothills, CaliforniaWed, Apr 1, 5:50 PM PST · 14418 days ago · 0 km deep · 6 km away
44. 1.618 km NE of East Foothills, CaliforniaWed, Apr 1, 6:11 PM PST · 14418 days ago · 6 km deep · 6 km away
45. 1.85 km NNE of Tres Pinos, CaliforniaThu, Apr 2, 5:44 AM PST · 14418 days ago · 7 km deep · 88 km away
46. 1.718 km NE of East Foothills, CaliforniaThu, Apr 2, 11:43 AM PST · 14418 days ago · 5 km deep · 6 km away
47. 1.86 km S of Tres Pinos, CaliforniaFri, Apr 3, 12:49 AM PST · 14417 days ago · 8 km deep · 98 km away
48. 1.912 km ESE of East Foothills, CaliforniaFri, Apr 3, 2:39 AM PST · 14417 days ago · 1 km deep · 24 km away
49. 1.66 km ENE of Hollister, CaliforniaFri, Apr 3, 3:23 AM PST · 14417 days ago · 9 km deep · 82 km away
50. 2.07 km SW of Mountain House, CaliforniaFri, Apr 3, 9:29 AM PST · 14417 days ago · 15 km deep · 20 km away
51. 2.81 km NNW of Castro Valley, CaliforniaFri, Apr 3, 7:11 PM PST · 14416 days ago · 5 km deep · 40 km away
52. 2.014 km N of Morgan Hill, CaliforniaSun, Apr 5, 7:41 AM PDT · 14415 days ago · 5 km deep · 34 km away
53. 1.612 km ENE of East Foothills, CaliforniaMon, Apr 6, 3:20 AM PDT · 14414 days ago · 8 km deep · 15 km away
54. 1.512 km NE of East Foothills, CaliforniaTue, Apr 7, 7:56 AM PDT · 14413 days ago · 6 km deep · 12 km away
55. 2.09 km SSW of Tres Pinos, CaliforniaTue, Apr 7, 7:28 PM PDT · 14412 days ago · 3 km deep · 99 km away
56. 2.07 km E of East Foothills, CaliforniaTue, Apr 7, 10:25 PM PDT · 14412 days ago · 6 km deep · 22 km away
57. 1.73 km NW of Sunol, CaliforniaWed, Apr 8, 8:48 PM PDT · 14411 days ago · 3 km deep · 21 km away
58. 1.519 km NE of East Foothills, CaliforniaThu, Apr 9, 4:14 AM PDT · 14411 days ago · 7 km deep · 6 km away
59. 2.310 km ESE of East Foothills, CaliforniaThu, Apr 9, 9:51 PM PDT · 14410 days ago · 8 km deep · 25 km away
60. 3.415 km SSE of Livermore, CaliforniaThu, Apr 9, 9:51 PM PDT · 14410 days ago · 4 km deep · 0 km away

The first 60 of 123.

Before

1. 1.58 km S of Antioch, CaliforniaWed, Mar 11, 2:12 PM PST · 14440 days ago · 5 km deep · 42 km away
2. 1.66 km NE of Ridgemark, CaliforniaWed, Mar 11, 1:40 PM PST · 14440 days ago · 2 km deep · 85 km away
3. 1.718 km NE of East Foothills, CaliforniaWed, Mar 11, 9:05 AM PST · 14440 days ago · 7 km deep · 6 km away
4. 1.86 km S of Antioch, CaliforniaTue, Mar 10, 12:18 PM PST · 14441 days ago · 6 km deep · 44 km away
5. 2.07 km S of Antioch, CaliforniaMon, Mar 9, 1:14 AM PST · 14442 days ago · 13 km deep · 43 km away
6. 2.28 km S of Antioch, CaliforniaMon, Mar 9, 1:12 AM PST · 14442 days ago · 12 km deep · 42 km away
7. 2.113 km ENE of East Foothills, CaliforniaSun, Mar 8, 4:18 PM PST · 14443 days ago · 7 km deep · 13 km away
8. 1.7Near the coast of Central CaliforniaSat, Mar 7, 10:17 PM PST · 14443 days ago · 11 km deep · 97 km away
9. 2.115 km E of Seven Trees, CaliforniaFri, Mar 6, 3:29 PM PST · 14445 days ago · 6 km deep · 31 km away
10. 1.818 km NE of East Foothills, CaliforniaFri, Mar 6, 7:47 AM PST · 14445 days ago · 7 km deep · 6 km away
11. 2.118 km NE of East Foothills, CaliforniaThu, Mar 5, 8:41 PM PST · 14445 days ago · 6 km deep · 6 km away
12. 1.718 km NE of East Foothills, CaliforniaWed, Mar 4, 12:28 PM PST · 14447 days ago · 5 km deep · 7 km away
13. 2.3Northern CaliforniaWed, Mar 4, 7:49 AM PST · 14447 days ago · 7 km deep · 12 km away
14. 2.8Central CaliforniaWed, Mar 4, 5:29 AM PST · 14447 days ago · 5 km deep · 81 km away
15. 1.78 km ENE of Hollister, CaliforniaWed, Mar 4, 2:25 AM PST · 14447 days ago · 7 km deep · 82 km away
16. 1.69 km NW of Broadmoor, CaliforniaTue, Mar 3, 5:56 AM PST · 14448 days ago · 7 km deep · 79 km away
17. 1.518 km SSE of Livermore, CaliforniaTue, Mar 3, 12:09 AM PST · 14448 days ago · 7 km deep · 4 km away
18. 1.68 km SSE of Pescadero, CaliforniaMon, Mar 2, 8:14 PM PST · 14448 days ago · 16 km deep · 72 km away
19. 1.58 km ENE of Tres Pinos, CaliforniaSun, Mar 1, 6:23 PM PST · 14449 days ago · 9 km deep · 93 km away
20. 1.95 km SSW of Ridgemark, CaliforniaSun, Mar 1, 11:21 AM PST · 14450 days ago · 7 km deep · 92 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc96557. Read Tue, Sep 22, 2026, 12:11 PM UTC.