M1.6 earthquake 16 km SSE of Livermore, California

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, May 31, 1987, 8:14 AM PDT

UTC

1987-05-31 15:14:24 UTC

Depth

7.9 km (4.9 mi), shallow

Epicenter

37.558° N, 121.672° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.12

Depth from

From location

Station coverage gap

42°

Stations used

33

• Livermore, CaliforniaPopulation 88,126. Forecast16 kmSSE
• Fremont, CaliforniaPopulation 232,206. Forecast28 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast497 kmNW

After

1. 2.63 km NNE of San Leandro, CaliforniaTue, Jun 2, 12:20 PM PDT · 14367 days ago · 4 km deep · 47 km away
2. 2.014 km E of Seven Trees, CaliforniaTue, Jun 2, 11:56 PM PDT · 14367 days ago · 4 km deep · 30 km away
3. 1.814 km E of Seven Trees, CaliforniaTue, Jun 2, 11:58 PM PDT · 14367 days ago · 3 km deep · 30 km away
4. 1.60 km NE of North Gate, CaliforniaWed, Jun 3, 2:30 PM PDT · 14366 days ago · 11 km deep · 48 km away
5. 1.718 km NE of East Foothills, CaliforniaWed, Jun 3, 11:35 PM PDT · 14366 days ago · 7 km deep · 5 km away
6. 1.514 km N of Morgan Hill, CaliforniaThu, Jun 4, 8:51 AM PDT · 14365 days ago · 6 km deep · 33 km away
7. 2.713 km N of Morgan Hill, CaliforniaThu, Jun 4, 9:15 PM PDT · 14365 days ago · 6 km deep · 34 km away
8. 2.22 km N of Ashland, CaliforniaSun, Jun 7, 3:11 PM PDT · 14362 days ago · 5 km deep · 42 km away
9. 2.515 km E of Seven Trees, CaliforniaMon, Jun 8, 7:02 PM PDT · 14361 days ago · 6 km deep · 30 km away
10. 1.98 km ENE of Morgan Hill, CaliforniaMon, Jun 8, 7:11 PM PDT · 14361 days ago · 2 km deep · 46 km away
11. 2.814 km N of Morgan Hill, CaliforniaMon, Jun 8, 8:40 PM PDT · 14361 days ago · 6 km deep · 33 km away
12. 1.6Northern CaliforniaTue, Jun 9, 3:34 AM PDT · 14361 days ago · 5 km deep · 35 km away
13. 1.93 km S of Fairview, CaliforniaTue, Jun 9, 9:02 PM PDT · 14360 days ago · 4 km deep · 34 km away
14. 2.35 km NNE of Tres Pinos, CaliforniaThu, Jun 11, 5:28 AM PDT · 14359 days ago · 6 km deep · 88 km away
15. 2.64 km W of San Juan Bautista, CaliforniaThu, Jun 11, 9:06 PM PDT · 14358 days ago · 6 km deep · 79 km away
16. 2.04 km WNW of San Juan Bautista, CaliforniaThu, Jun 11, 9:08 PM PDT · 14358 days ago · 6 km deep · 79 km away
17. 3.12 km NNW of Communications Hill, CaliforniaThu, Jun 11, 10:43 PM PDT · 14358 days ago · 10 km deep · 33 km away
18. 1.610 km E of Blackhawk, CaliforniaFri, Jun 12, 12:25 PM PDT · 14357 days ago · 18 km deep · 32 km away
19. 1.88 km NE of Interlaken, CaliforniaSun, Jun 14, 12:13 AM PDT · 14356 days ago · 4 km deep · 61 km away
20. 1.511 km ESE of Gilroy, CaliforniaSun, Jun 14, 7:01 AM PDT · 14356 days ago · 4 km deep · 67 km away
21. 2.45 km N of Port Costa, CaliforniaTue, Jun 16, 12:49 AM PDT · 14354 days ago · 10 km deep · 74 km away
22. 2.218 km NE of East Foothills, CaliforniaTue, Jun 16, 4:18 AM PDT · 14354 days ago · 6 km deep · 5 km away
23. 2.510 km E of Blackhawk, CaliforniaSat, Jun 20, 7:22 PM PDT · 14349 days ago · 13 km deep · 33 km away
24. 1.61 km N of Kensington, CaliforniaSat, Jun 20, 7:52 PM PDT · 14349 days ago · 6 km deep · 67 km away
25. 1.615 km SE of Livermore, CaliforniaSun, Jun 21, 1:59 PM PDT · 14348 days ago · 2 km deep · 1 km away
26. 1.99 km SSW of Ridgemark, CaliforniaSun, Jun 21, 8:18 PM PDT · 14348 days ago · 7 km deep · 94 km away
27. 1.525 km ENE of Tres Pinos, CaliforniaSun, Jun 21, 11:22 PM PDT · 14348 days ago · 2 km deep · 94 km away
28. 1.519 km SSE of Livermore, CaliforniaMon, Jun 22, 4:10 AM PDT · 14348 days ago · 7 km deep · 4 km away
29. 1.94 km ESE of Interlaken, CaliforniaMon, Jun 22, 12:55 PM PDT · 14347 days ago · 10 km deep · 69 km away
30. 1.63 km SSW of Hillsborough, CaliforniaMon, Jun 22, 11:05 PM PDT · 14347 days ago · 6 km deep · 63 km away
31. 2.09 km SSW of Ridgemark, CaliforniaTue, Jun 23, 1:22 PM PDT · 14346 days ago · 7 km deep · 94 km away
32. 1.914 km E of Seven Trees, CaliforniaTue, Jun 23, 4:30 PM PDT · 14346 days ago · 1 km deep · 29 km away
33. 1.65 km NNE of Tres Pinos, CaliforniaWed, Jun 24, 2:23 AM PDT · 14346 days ago · 4 km deep · 87 km away
34. 2.36 km NE of East Foothills, CaliforniaWed, Jun 24, 2:52 AM PDT · 14346 days ago · 10 km deep · 17 km away
35. 1.619 km SSE of Livermore, CaliforniaThu, Jun 25, 10:41 AM PDT · 14344 days ago · 3 km deep · 3 km away
36. 2.68 km ENE of Morgan Hill, CaliforniaFri, Jun 26, 6:23 AM PDT · 14344 days ago · 3 km deep · 45 km away
37. 1.813 km ENE of East Foothills, CaliforniaFri, Jun 26, 3:33 PM PDT · 14343 days ago · 7 km deep · 17 km away
38. 1.85 km NNE of Tres Pinos, CaliforniaSat, Jun 27, 8:16 AM PDT · 14343 days ago · 6 km deep · 87 km away
39. 1.812 km NNE of East Foothills, CaliforniaSun, Jun 28, 2:20 AM PDT · 14342 days ago · 4 km deep · 11 km away
40. 1.65 km NNE of Tres Pinos, CaliforniaMon, Jun 29, 7:43 AM PDT · 14341 days ago · 6 km deep · 87 km away
41. 1.612 km E of Blackhawk, CaliforniaWed, Jul 1, 11:20 PM PDT · 14338 days ago · 16 km deep · 30 km away
42. 3.31 km NNE of Waldon, CaliforniaThu, Jul 2, 4:03 AM PDT · 14338 days ago · 11 km deep · 53 km away
43. 2.33 km NNE of Pittsburg, CaliforniaThu, Jul 2, 5:37 PM PDT · 14337 days ago · 19 km deep · 58 km away
44. 2.03 km SSE of Concord, CaliforniaFri, Jul 3, 11:44 AM PDT · 14336 days ago · 10 km deep · 52 km away
45. 2.510 km SW of Ridgemark, CaliforniaFri, Jul 3, 9:29 PM PDT · 14336 days ago · 7 km deep · 92 km away
46. 1.67 km ENE of Hollister, CaliforniaSat, Jul 4, 3:07 AM PDT · 14336 days ago · 4 km deep · 81 km away
47. 2.05 km SE of Tres Pinos, CaliforniaSat, Jul 4, 11:16 AM PDT · 14335 days ago · 6 km deep · 96 km away
48. 1.55 km SE of Tres Pinos, CaliforniaSun, Jul 5, 8:31 AM PDT · 14334 days ago · 7 km deep · 97 km away
49. 1.613 km N of Morgan Hill, CaliforniaSun, Jul 5, 5:32 PM PDT · 14334 days ago · 6 km deep · 34 km away
50. 1.514 km NNE of Morgan Hill, CaliforniaSun, Jul 5, 10:32 PM PDT · 14334 days ago · 3 km deep · 35 km away
51. 1.99 km E of San Martin, CaliforniaMon, Jul 6, 12:43 AM PDT · 14334 days ago · 8 km deep · 54 km away
52. 2.113 km N of Morgan Hill, CaliforniaMon, Jul 6, 3:12 PM PDT · 14333 days ago · 5 km deep · 34 km away
53. 1.54 km NE of Tres Pinos, CaliforniaTue, Jul 7, 1:17 AM PDT · 14333 days ago · 9 km deep · 90 km away
54. 3.613 km N of Morgan Hill, CaliforniaTue, Jul 7, 11:30 AM PDT · 14332 days ago · 6 km deep · 34 km away
55. 1.612 km N of Morgan Hill, CaliforniaTue, Jul 7, 4:47 PM PDT · 14332 days ago · 7 km deep · 35 km away
56. 1.67 km ENE of Gilroy, CaliforniaTue, Jul 7, 7:06 PM PDT · 14332 days ago · 6 km deep · 60 km away
57. 1.95 km SW of Gilroy, CaliforniaTue, Jul 7, 7:23 PM PDT · 14332 days ago · 7 km deep · 66 km away
58. 2.013 km N of Morgan Hill, CaliforniaTue, Jul 7, 9:03 PM PDT · 14332 days ago · 5 km deep · 34 km away
59. 1.615 km SSE of Livermore, CaliforniaWed, Jul 8, 1:17 PM PDT · 14331 days ago · 3 km deep · 2 km away
60. 2.412 km E of Blackhawk, CaliforniaThu, Jul 9, 12:28 AM PDT · 14331 days ago · 10 km deep · 31 km away

The first 60 of 96.

Before

1. 1.96 km SW of Ridgemark, CaliforniaSun, May 31, 7:27 AM PDT · 14370 days ago · 10 km deep · 92 km away
2. 2.82 km NNE of San Leandro, CaliforniaSat, May 30, 10:16 PM PDT · 14370 days ago · 4 km deep · 46 km away
3. 3.22 km NE of San Leandro, CaliforniaSat, May 30, 8:34 PM PDT · 14370 days ago · 4 km deep · 46 km away
4. 2.118 km SSW of Volta, CaliforniaSat, May 30, 8:28 PM PDT · 14370 days ago · 7 km deep · 91 km away
5. 2.63 km ENE of East Foothills, CaliforniaSat, May 30, 12:33 AM PDT · 14371 days ago · 1 km deep · 21 km away
6. 1.75 km WSW of Gilroy, CaliforniaFri, May 29, 6:33 AM PDT · 14372 days ago · 7 km deep · 63 km away
7. 1.619 km E of East Foothills, CaliforniaFri, May 29, 5:11 AM PDT · 14372 days ago · 5 km deep · 24 km away
8. 1.814 km N of Morgan Hill, CaliforniaThu, May 28, 2:43 PM PDT · 14372 days ago · 5 km deep · 33 km away
9. 2.62 km NNE of San Leandro, CaliforniaThu, May 28, 7:12 AM PDT · 14373 days ago · 4 km deep · 47 km away
10. 1.81 km WNW of Concord, CaliforniaThu, May 28, 3:34 AM PDT · 14373 days ago · 12 km deep · 57 km away
11. 1.612 km ESE of East Foothills, CaliforniaWed, May 27, 5:59 PM PDT · 14373 days ago · 5 km deep · 26 km away
12. 2.04 km ESE of San Ramon, CaliforniaTue, May 26, 6:50 PM PDT · 14374 days ago · 7 km deep · 32 km away
13. 1.68 km ESE of East Foothills, CaliforniaTue, May 26, 5:14 PM PDT · 14374 days ago · 2 km deep · 23 km away
14. 2.34 km ESE of San Ramon, CaliforniaTue, May 26, 4:53 PM PDT · 14374 days ago · 7 km deep · 33 km away
15. 1.94 km ESE of San Ramon, CaliforniaTue, May 26, 4:26 PM PDT · 14374 days ago · 3 km deep · 32 km away
16. 2.05 km SE of Tres Pinos, CaliforniaTue, May 26, 3:25 PM PDT · 14374 days ago · 7 km deep · 95 km away
17. 2.53 km NNE of San Leandro, CaliforniaTue, May 26, 1:29 PM PDT · 14374 days ago · 5 km deep · 47 km away
18. 2.23 km N of San Leandro, CaliforniaTue, May 26, 2:49 AM PDT · 14375 days ago · 4 km deep · 47 km away
19. 2.43 km NNE of San Leandro, CaliforniaTue, May 26, 1:20 AM PDT · 14375 days ago · 5 km deep · 47 km away
20. 3.0Northern CaliforniaTue, May 26, 12:59 AM PDT · 14375 days ago · 5 km deep · 47 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc101232. Read Sat, Oct 3, 2026, 2:58 AM UTC.