M1.7 earthquake 12 km SE of Sunol, California

Magnitude

1.7 (md), micro

Local time

Wed, Feb 25, 1987, 7:22 PM PST

UTC

1987-02-26 03:22:36 UTC

Depth

9.4 km (5.8 mi), shallow

Epicenter

37.511° N, 121.799° 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

±0.14

Depth from

From location

Station coverage gap

41°

Stations used

42

• Sunol, CaliforniaPopulation 913. Forecast12 kmSE
• Milpitas, CaliforniaPopulation 77,604. Forecast13 kmNE
• Fremont, CaliforniaPopulation 232,206. Forecast17 kmESE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast501 kmNW

After

1. 2.19 km NW of Bayview, CaliforniaWed, Feb 25, 8:52 PM PST · 14453 days ago · 6 km deep · 80 km away
2. 2.412 km N of Morgan Hill, CaliforniaThu, Feb 26, 6:44 AM PST · 14453 days ago · 5 km deep · 33 km away
3. 2.05 km SW of Gilroy, CaliforniaThu, Feb 26, 12:31 PM PST · 14453 days ago · 4 km deep · 62 km away
4. 2.012 km NE of East Foothills, CaliforniaThu, Feb 26, 1:58 PM PST · 14453 days ago · 7 km deep · 8 km away
5. 1.917 km NE of East Foothills, CaliforniaThu, Feb 26, 8:03 PM PST · 14452 days ago · 7 km deep · 10 km away
6. 2.111 km N of Clyde, CaliforniaThu, Feb 26, 11:46 PM PST · 14452 days ago · 0 km deep · 72 km away
7. 1.87 km WSW of French Camp, CaliforniaFri, Feb 27, 4:25 PM PST · 14451 days ago · 15 km deep · 55 km away
8. 1.68 km ENE of Gilroy, CaliforniaFri, Feb 27, 8:58 PM PST · 14451 days ago · 6 km deep · 61 km away
9. 1.85 km ENE of Aromas, CaliforniaSat, Feb 28, 1:18 AM PST · 14451 days ago · 7 km deep · 69 km away
10. 2.410 km S of Tres Pinos, CaliforniaSat, Feb 28, 2:21 AM PST · 14451 days ago · 4 km deep · 100 km away
11. 2.813 km ENE of East Foothills, CaliforniaSat, Feb 28, 5:42 AM PST · 14451 days ago · 6 km deep · 13 km away
12. 3.913 km ENE of East Foothills, CaliforniaSat, Feb 28, 8:24 AM PST · 14451 days ago · 8 km deep · 12 km away
13. 3.113 km ENE of East Foothills, CaliforniaSat, Feb 28, 8:34 AM PST · 14451 days ago · 7 km deep · 12 km away
14. 1.812 km NE of East Foothills, CaliforniaSat, Feb 28, 12:30 PM PST · 14451 days ago · 7 km deep · 8 km away
15. 2.013 km ENE of East Foothills, CaliforniaSat, Feb 28, 2:09 PM PST · 14451 days ago · 7 km deep · 12 km away
16. 2.113 km ENE of East Foothills, CaliforniaSat, Feb 28, 3:50 PM PST · 14450 days ago · 7 km deep · 12 km away
17. 1.714 km NE of East Foothills, CaliforniaSat, Feb 28, 3:54 PM PST · 14450 days ago · 7 km deep · 12 km away
18. 1.713 km ENE of East Foothills, CaliforniaSat, Feb 28, 4:32 PM PST · 14450 days ago · 8 km deep · 13 km away
19. 1.613 km ENE of East Foothills, CaliforniaSat, Feb 28, 4:52 PM PST · 14450 days ago · 8 km deep · 12 km away
20. 1.614 km SSE of Livermore, CaliforniaSat, Feb 28, 7:07 PM PST · 14450 days ago · 5 km deep · 13 km away
21. 2.513 km ENE of East Foothills, CaliforniaSun, Mar 1, 5:36 AM PST · 14450 days ago · 7 km deep · 14 km away
22. 1.95 km SSW of Ridgemark, CaliforniaSun, Mar 1, 11:21 AM PST · 14450 days ago · 7 km deep · 90 km away
23. 1.58 km ENE of Tres Pinos, CaliforniaSun, Mar 1, 6:23 PM PST · 14449 days ago · 9 km deep · 93 km away
24. 1.68 km SSE of Pescadero, CaliforniaMon, Mar 2, 8:14 PM PST · 14448 days ago · 16 km deep · 60 km away
25. 1.518 km SSE of Livermore, CaliforniaTue, Mar 3, 12:09 AM PST · 14448 days ago · 7 km deep · 11 km away
26. 1.69 km NW of Broadmoor, CaliforniaTue, Mar 3, 5:56 AM PST · 14448 days ago · 7 km deep · 71 km away
27. 1.78 km ENE of Hollister, CaliforniaWed, Mar 4, 2:25 AM PST · 14447 days ago · 7 km deep · 82 km away
28. 2.8Central CaliforniaWed, Mar 4, 5:29 AM PST · 14447 days ago · 5 km deep · 81 km away
29. 2.3Northern CaliforniaWed, Mar 4, 7:49 AM PST · 14447 days ago · 7 km deep · 12 km away
30. 1.718 km NE of East Foothills, CaliforniaWed, Mar 4, 12:28 PM PST · 14447 days ago · 5 km deep · 10 km away
31. 2.118 km NE of East Foothills, CaliforniaThu, Mar 5, 8:41 PM PST · 14445 days ago · 6 km deep · 10 km away
32. 1.818 km NE of East Foothills, CaliforniaFri, Mar 6, 7:47 AM PST · 14445 days ago · 7 km deep · 9 km away
33. 2.115 km E of Seven Trees, CaliforniaFri, Mar 6, 3:29 PM PST · 14444 days ago · 6 km deep · 28 km away
34. 1.7Near the coast of Central CaliforniaSat, Mar 7, 10:17 PM PST · 14443 days ago · 11 km deep · 89 km away
35. 2.113 km ENE of East Foothills, CaliforniaSun, Mar 8, 4:18 PM PST · 14442 days ago · 7 km deep · 12 km away
36. 2.28 km S of Antioch, CaliforniaMon, Mar 9, 1:12 AM PST · 14442 days ago · 12 km deep · 46 km away
37. 2.07 km S of Antioch, CaliforniaMon, Mar 9, 1:14 AM PST · 14442 days ago · 13 km deep · 47 km away
38. 1.86 km S of Antioch, CaliforniaTue, Mar 10, 12:18 PM PST · 14441 days ago · 6 km deep · 48 km away
39. 1.718 km NE of East Foothills, CaliforniaWed, Mar 11, 9:05 AM PST · 14440 days ago · 7 km deep · 10 km away
40. 1.66 km NE of Ridgemark, CaliforniaWed, Mar 11, 1:40 PM PST · 14440 days ago · 2 km deep · 84 km away
41. 1.58 km S of Antioch, CaliforniaWed, Mar 11, 2:12 PM PST · 14440 days ago · 5 km deep · 46 km away
42. 1.815 km SSE of Livermore, CaliforniaWed, Mar 11, 5:15 PM PST · 14439 days ago · 4 km deep · 12 km away
43. 1.86 km ENE of Hollister, CaliforniaThu, Mar 12, 2:47 AM PST · 14439 days ago · 6 km deep · 81 km away
44. 1.96 km NE of Tres Pinos, CaliforniaThu, Mar 12, 6:29 PM PST · 14438 days ago · 8 km deep · 89 km away
45. 1.79 km SSW of Tres Pinos, CaliforniaThu, Mar 12, 9:47 PM PST · 14438 days ago · 3 km deep · 98 km away
46. 1.65 km N of Novato, CaliforniaFri, Mar 13, 3:51 PM PST · 14437 days ago · 2 km deep · 99 km away
47. 1.69 km SE of Sunol, CaliforniaFri, Mar 13, 10:16 PM PST · 14437 days ago · 10 km deep · 3 km away
48. 1.918 km NE of East Foothills, CaliforniaSat, Mar 14, 9:59 PM PST · 14436 days ago · 5 km deep · 10 km away
49. 2.020 km ENE of East Foothills, CaliforniaMon, Mar 16, 3:04 AM PST · 14435 days ago · 7 km deep · 16 km away
50. 1.59 km NNE of Hollister, CaliforniaMon, Mar 16, 6:41 AM PST · 14435 days ago · 7 km deep · 76 km away
51. 1.618 km SSE of Livermore, CaliforniaMon, Mar 16, 4:20 PM PST · 14434 days ago · 4 km deep · 10 km away
52. 1.66 km NE of Ridgemark, CaliforniaTue, Mar 17, 9:14 AM PST · 14434 days ago · 4 km deep · 84 km away
53. 1.85 km NNE of Tres Pinos, CaliforniaWed, Mar 18, 1:30 PM PST · 14433 days ago · 6 km deep · 87 km away
54. 1.616 km SSE of Livermore, CaliforniaWed, Mar 18, 1:54 PM PST · 14433 days ago · 6 km deep · 12 km away
55. 1.66 km ENE of Hollister, CaliforniaThu, Mar 19, 4:22 AM PST · 14432 days ago · 6 km deep · 81 km away
56. 2.710 km SW of Ridgemark, CaliforniaThu, Mar 19, 7:08 PM PST · 14431 days ago · 8 km deep · 90 km away
57. 2.417 km NE of East Foothills, CaliforniaFri, Mar 20, 8:50 AM PST · 14431 days ago · 6 km deep · 10 km away
58. 2.910 km NNW of Hollister, CaliforniaFri, Mar 20, 11:28 AM PST · 14431 days ago · 2 km deep · 71 km away
59. 1.66 km NE of Interlaken, CaliforniaFri, Mar 20, 5:18 PM PST · 14430 days ago · 10 km deep · 59 km away
60. 1.513 km ENE of East Foothills, CaliforniaSat, Mar 21, 10:08 AM PST · 14430 days ago · 8 km deep · 13 km away

The first 60 of 136.

Before

1. 1.68 km NNE of Milpitas, CaliforniaWed, Feb 25, 7:35 AM PST · 14454 days ago · 3 km deep · 7 km away
2. 1.58 km ENE of San Martin, CaliforniaWed, Feb 25, 4:06 AM PST · 14454 days ago · 7 km deep · 50 km away
3. 2.216 km SSE of Livermore, CaliforniaSat, Feb 21, 8:18 PM PST · 14457 days ago · 6 km deep · 12 km away
4. 1.713 km ESE of East Foothills, CaliforniaSat, Feb 21, 10:17 AM PST · 14458 days ago · 4 km deep · 23 km away
5. 2.712 km N of Morgan Hill, CaliforniaFri, Feb 20, 10:06 PM PST · 14458 days ago · 6 km deep · 34 km away
6. 1.612 km N of Morgan Hill, CaliforniaFri, Feb 20, 9:57 PM PST · 14458 days ago · 4 km deep · 34 km away
7. 1.812 km NNE of Morgan Hill, CaliforniaFri, Feb 20, 9:57 PM PST · 14458 days ago · 5 km deep · 34 km away
8. 1.77 km NNE of East Foothills, CaliforniaFri, Feb 20, 7:47 PM PST · 14458 days ago · 7 km deep · 7 km away
9. 2.015 km SSE of Livermore, CaliforniaFri, Feb 20, 11:27 AM PST · 14459 days ago · 4 km deep · 11 km away
10. 2.010 km ESE of Gilroy, CaliforniaThu, Feb 19, 5:05 PM PST · 14459 days ago · 8 km deep · 67 km away
11. 1.613 km ENE of East Foothills, CaliforniaThu, Feb 19, 3:25 PM PST · 14459 days ago · 7 km deep · 14 km away
12. 2.812 km SE of Sunol, CaliforniaThu, Feb 19, 5:15 AM PST · 14460 days ago · 10 km deep · 0 km away
13. 2.213 km ENE of East Foothills, CaliforniaThu, Feb 19, 12:26 AM PST · 14460 days ago · 7 km deep · 13 km away
14. 1.718 km NE of East Foothills, CaliforniaWed, Feb 18, 11:06 PM PST · 14460 days ago · 8 km deep · 9 km away
15. 1.813 km ENE of East Foothills, CaliforniaWed, Feb 18, 9:56 AM PST · 14461 days ago · 7 km deep · 12 km away
16. 1.92 km NE of San Leandro, CaliforniaWed, Feb 18, 5:12 AM PST · 14461 days ago · 6 km deep · 39 km away
17. 1.7Northern CaliforniaWed, Feb 18, 2:09 AM PST · 14461 days ago · 7 km deep · 22 km away
18. 1.516 km NE of East Foothills, CaliforniaTue, Feb 17, 9:54 PM PST · 14461 days ago · 7 km deep · 10 km away
19. 2.216 km SSE of Livermore, CaliforniaTue, Feb 17, 6:37 PM PST · 14461 days ago · 3 km deep · 12 km away
20. 1.817 km NE of East Foothills, CaliforniaTue, Feb 17, 12:47 AM PST · 14462 days ago · 8 km deep · 10 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc95486. Read Tue, Sep 22, 2026, 10:00 AM UTC.