M1.8 earthquake 5 km N of Alum Rock, CA

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Sep 9, 2026, 10:51 AM PDT

UTC

2026-09-09 17:51:16 UTC

Depth

-0.2 km (-0.1 mi), shallow

Epicenter

37.413° N, 121.820° 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

±0.22

Depth from

From location

Station coverage gap

55°

Stations used

34

• East Foothills, CaliforniaPopulation 8,269. Forecast4 kmN
• Alum Rock, CaliforniaPopulation 15,536. Forecast5 kmN
• San Jose, CaliforniaPopulation 997,368. Forecast11 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast494 kmNW

After

1. 1.98 km NE of Alum Rock, CAWed, Sep 9, 3:54 PM PDT · 24 days ago · 7 km deep · 6 km away
2. 2.52 km ESE of Oakland, CAWed, Sep 9, 7:52 PM PDT · 24 days ago · 10 km deep · 54 km away · felt by 64
3. 1.51 km E of Aromas, CAThu, Sep 10, 1:59 AM PDT · 24 days ago · 6 km deep · 61 km away
4. 2.13 km W of Dublin, CAThu, Sep 10, 2:27 PM PDT · 23 days ago · 10 km deep · 35 km away
5. 2.13 km W of Dublin, CAThu, Sep 10, 3:00 PM PDT · 23 days ago · 10 km deep · 35 km away · felt by 1
6. 2.13 km WNW of Dublin, CAThu, Sep 10, 3:02 PM PDT · 23 days ago · 10 km deep · 35 km away
7. 3.19 km ENE of Blackhawk, CASat, Sep 12, 12:25 AM PDT · 22 days ago · 16 km deep · 50 km away · felt by 257
8. 1.914 km ENE of Hollister, CASat, Sep 12, 2:17 PM PDT · 22 days ago · 8 km deep · 74 km away
9. 2.56 km ENE of Blackhawk, CASun, Sep 13, 3:06 PM PDT · 20 days ago · 16 km deep · 49 km away · felt by 5
10. 1.54 km NNW of Hollister, CASun, Sep 13, 4:45 PM PDT · 20 days ago · 9 km deep · 69 km away
11. 2.51 km ESE of Woodside, CASun, Sep 13, 5:44 PM PDT · 20 days ago · 5 km deep · 38 km away · felt by 179
12. 1.81 km E of Woodside, CASun, Sep 13, 5:45 PM PDT · 20 days ago · 5 km deep · 38 km away · felt by 5
13. 1.71 km ENE of Woodside, CASun, Sep 13, 5:52 PM PDT · 20 days ago · 5 km deep · 37 km away
14. 3.09 km SW of Brentwood, CAMon, Sep 14, 6:47 AM PDT · 20 days ago · 17 km deep · 51 km away · felt by 52
15. 2.33 km W of Dublin, CATue, Sep 15, 1:00 PM PDT · 19 days ago · 10 km deep · 35 km away · felt by 3
16. 1.96 km ENE of Clayton, CATue, Sep 15, 4:23 PM PDT · 18 days ago · 16 km deep · 62 km away
17. 1.53 km W of Dublin, CAWed, Sep 16, 7:53 AM PDT · 18 days ago · 9 km deep · 35 km away
18. 2.13 km W of Dublin, CAWed, Sep 16, 7:54 AM PDT · 18 days ago · 10 km deep · 35 km away
19. 1.52 km N of Berkeley, CAWed, Sep 16, 10:12 AM PDT · 18 days ago · 4 km deep · 66 km away
20. 1.93 km W of Dublin, CAWed, Sep 16, 12:15 PM PDT · 18 days ago · 10 km deep · 35 km away
21. 2.621 km E of Alum Rock, CAWed, Sep 16, 8:07 PM PDT · 17 days ago · 7 km deep · 22 km away · felt by 6
22. 1.83 km NNE of Pacifica, CAThu, Sep 17, 2:32 AM PDT · 17 days ago · 4 km deep · 63 km away
23. 2.510 km ENE of Milpitas, CASat, Sep 19, 3:52 AM PDT · 15 days ago · 3 km deep · 6 km away · felt by 9
24. 1.53 km N of Aromas, CASat, Sep 19, 5:04 PM PDT · 14 days ago · 4 km deep · 57 km away
25. 2.02 km NE of Pacifica, CASat, Sep 19, 5:16 PM PDT · 14 days ago · 7 km deep · 62 km away · felt by 8
26. 1.72 km E of Oakland, CASun, Sep 20, 5:29 PM PDT · 13 days ago · 8 km deep · 54 km away
27. 1.71 km NNW of Pleasant Hill, CASun, Sep 20, 5:44 PM PDT · 13 days ago · 16 km deep · 65 km away
28. 1.99 km ESE of Livermore, CASun, Sep 20, 10:18 PM PDT · 13 days ago · 10 km deep · 28 km away
29. 2.33 km SE of Pacifica, CAMon, Sep 21, 8:24 PM PDT · 12 days ago · 9 km deep · 61 km away · felt by 54
30. 1.710 km SW of Tres Pinos, CATue, Sep 22, 1:50 AM PDT · 12 days ago · 2 km deep · 86 km away
31. 2.62 km NW of Hollister, CAWed, Sep 23, 9:00 AM PDT · 11 days ago · 7 km deep · 71 km away · felt by 24
32. 1.75 km ESE of Interlaken, CAWed, Sep 23, 11:37 AM PDT · 11 days ago · 13 km deep · 55 km away
33. 1.56 km ENE of Chualar, CAWed, Sep 23, 1:06 PM PDT · 11 days ago · 0 km deep · 97 km away
34. 1.811 km SSW of La Selva Beach, CAThu, Sep 24, 10:54 AM PDT · 10 days ago · 10 km deep · 63 km away
35. 1.712 km SE of Livermore, CAFri, Sep 25, 2:43 PM PDT · 8 days ago · 1 km deep · 25 km away
36. 2.21 km E of Port Costa, CAFri, Sep 25, 9:56 PM PDT · 8 days ago · 8 km deep · 77 km away · felt by 65
37. 2.34 km WNW of Orinda, CASat, Sep 26, 10:41 AM PDT · 8 days ago · 4 km deep · 64 km away · felt by 2
38. 1.63 km SW of San Ramon, CASun, Sep 27, 3:48 AM PDT · 7 days ago · 8 km deep · 42 km away
39. 3.327 km WSW of Westley, CASun, Sep 27, 7:21 AM PDT · 7 days ago · 3 km deep · 32 km away · felt by 15
40. 2.626 km WSW of Westley, CASun, Sep 27, 7:40 AM PDT · 7 days ago · 3 km deep · 32 km away
41. 1.726 km WSW of Westley, CASun, Sep 27, 9:06 AM PDT · 7 days ago · 4 km deep · 32 km away
42. 2.316 km S of Tres Pinos, CASun, Sep 27, 11:15 AM PDT · 7 days ago · 8 km deep · 97 km away
43. 2.112 km NNE of Alum Rock, CASun, Sep 27, 9:49 PM PDT · 6 days ago · 6 km deep · 7 km away · felt by 1
44. 1.72 km SW of San Ramon, CAMon, Sep 28, 3:06 PM PDT · 5 days ago · 8 km deep · 42 km away
45. 1.72 km NW of Hollister, CATue, Sep 29, 1:55 AM PDT · 5 days ago · 5 km deep · 71 km away
46. 2.126 km WSW of Westley, CATue, Sep 29, 9:04 PM PDT · 4 days ago · 4 km deep · 32 km away
47. 2.01 km NNW of East Richmond Heights, CAThu, Oct 1, 9:29 AM PDT · 3 days ago · 9 km deep · 74 km away
48. 2.49 km E of Alum Rock, CASat, Oct 3, 1:45 PM PDT · 12 hr ago · 6 km deep · 11 km away

Before

1. 1.62 km SSW of Hollister, CATue, Sep 8, 10:18 AM PDT · 26 days ago · 9 km deep · 75 km away
2. 1.81 km SW of Diablo, CATue, Sep 8, 5:44 AM PDT · 26 days ago · 7 km deep · 48 km away
3. 2.28 km ENE of Gilroy, CAMon, Sep 7, 9:19 AM PDT · 27 days ago · 5 km deep · 52 km away
4. 2.27 km SW of Gilroy, CASat, Sep 5, 7:59 AM PDT · 29 days ago · 5 km deep · 53 km away · felt by 1
5. 1.67 km NNE of Aromas, CASat, Sep 5, 5:27 AM PDT · 29 days ago · 4 km deep · 54 km away
6. 1.67 km SW of Gilroy, CASat, Sep 5, 4:36 AM PDT · 29 days ago · 4 km deep · 54 km away
7. 1.77 km SSW of Brentwood, CAFri, Sep 4, 9:35 PM PDT · 29 days ago · 16 km deep · 51 km away
8. 1.515 km E of Seven Trees, CAFri, Sep 4, 2:56 PM PDT · 29 days ago · 2 km deep · 19 km away
9. 1.69 km W of Patterson, CAThu, Sep 3, 1:10 PM PDT · 31 days ago · 6 km deep · 53 km away
10. 1.63 km ESE of Hayward, CAWed, Sep 2, 4:21 AM PDT · 32 days ago · 7 km deep · 31 km away
11. 1.510 km SSE of San Juan Bautista, CATue, Sep 1, 1:39 PM PDT · 33 days ago · 8 km deep · 78 km away
12. 1.62 km ESE of Pacifica, CASun, Aug 30, 9:38 AM PDT · 35 days ago · 9 km deep · 61 km away
13. 2.03 km SE of Pacifica, CASun, Aug 30, 2:04 AM PDT · 35 days ago · 9 km deep · 61 km away · felt by 7
14. 1.916 km S of Tres Pinos, CAFri, Aug 28, 1:56 PM PDT · 37 days ago · 6 km deep · 97 km away
15. 1.71 km SE of Pacifica, CAFri, Aug 28, 1:28 PM PDT · 37 days ago · 10 km deep · 62 km away
16. 1.611 km SE of Sunol, CAThu, Aug 27, 1:08 AM PDT · 38 days ago · 7 km deep · 12 km away
17. 2.12 km ESE of Pacifica, CAWed, Aug 26, 7:13 PM PDT · 38 days ago · 10 km deep · 61 km away · felt by 11
18. 1.91 km WNW of Lafayette, CAWed, Aug 26, 1:57 AM PDT · 39 days ago · 14 km deep · 59 km away · felt by 1
19. 1.87 km WSW of Gilroy, CASun, Aug 23, 6:21 AM PDT · 42 days ago · 5 km deep · 50 km away
20. 1.61 km ESE of Pacifica, CASat, Aug 22, 11:24 AM PDT · 43 days ago · 9 km deep · 61 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc75432607. Read Sun, Oct 4, 2026, 8:54 AM UTC.