M1.9 earthquake 15km E of Seven Trees, CA

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Aug 31, 2021, 1:15 AM PDT

UTC

2021-08-31 08:15:20 UTC

Depth

4.0 km (2.5 mi), shallow

Epicenter

37.289° N, 121.665° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.2 km in depth

Magnitude uncertainty

±0.24

Depth from

From location

Station coverage gap

40°

Stations used

55

• Seven Trees, CaliforniaPopulation 1,788. Forecast15 kmE
• Alum Rock, CaliforniaPopulation 15,536. Forecast17 kmESE
• San Jose, CaliforniaPopulation 997,368. Forecast21 kmESE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast474 kmNW

After

1. 4.06km NW of Pinnacles, CATue, Aug 31, 9:09 AM PDT · 1860 days ago · 9 km deep · 90 km away · felt by 265 · tsunami flag
2. 2.411km NE of Milpitas, CATue, Aug 31, 11:27 AM PDT · 1859 days ago · 4 km deep · 27 km away
3. 2.66km S of Livermore, CAWed, Sep 1, 4:13 PM PDT · 1858 days ago · 4 km deep · 38 km away · felt by 81
4. 1.75km NW of Dublin, CAThu, Sep 2, 6:20 AM PDT · 1858 days ago · 7 km deep · 56 km away
5. 1.58km NNW of Pinnacles, CAFri, Sep 3, 12:07 PM PDT · 1856 days ago · 7 km deep · 88 km away
6. 2.014km N of Morgan Hill, CAFri, Sep 3, 1:09 PM PDT · 1856 days ago · 4 km deep · 5 km away · felt by 2
7. 2.26km SW of Gilroy, CASat, Sep 4, 9:15 AM PDT · 1856 days ago · 3 km deep · 36 km away · felt by 1
8. 1.56km SW of Gilroy, CASat, Sep 4, 11:01 AM PDT · 1855 days ago · 3 km deep · 36 km away
9. 1.910km NE of Milpitas, CASat, Sep 4, 12:25 PM PDT · 1855 days ago · 4 km deep · 27 km away
10. 1.913km SSE of Tres Pinos, CASun, Sep 5, 7:47 AM PDT · 1855 days ago · 6 km deep · 76 km away
11. 1.611km ESE of Gilroy, CASun, Sep 5, 10:52 PM PDT · 1854 days ago · 5 km deep · 40 km away · felt by 3
12. 2.515km SSE of Tres Pinos, CAWed, Sep 8, 6:31 PM PDT · 1851 days ago · 5 km deep · 78 km away · felt by 3
13. 1.67km NNW of Pinnacles, CAThu, Sep 9, 9:18 AM PDT · 1851 days ago · 8 km deep · 89 km away
14. 1.76km WNW of Dublin, CAThu, Sep 9, 6:56 PM PDT · 1850 days ago · 7 km deep · 57 km away · felt by 3
15. 1.78km S of Gustine, CAFri, Sep 10, 12:41 AM PDT · 1850 days ago · 9 km deep · 59 km away
16. 2.216km NW of Pinnacles, CAFri, Sep 10, 7:59 AM PDT · 1850 days ago · 4 km deep · 80 km away
17. 1.73km ESE of Pacheco, CAFri, Sep 10, 5:03 PM PDT · 1849 days ago · 12 km deep · 83 km away
18. 2.17km NNW of Pinnacles, CAFri, Sep 10, 5:57 PM PDT · 1849 days ago · 8 km deep · 89 km away
19. 2.08km N of Pinnacles, CAFri, Sep 10, 8:01 PM PDT · 1849 days ago · 9 km deep · 89 km away
20. 1.81km NW of Diablo, CASun, Sep 12, 5:31 AM PDT · 1848 days ago · 8 km deep · 67 km away
21. 2.015km NW of Pinnacles, CASun, Sep 12, 8:04 AM PDT · 1848 days ago · 10 km deep · 82 km away · felt by 1
22. 2.910km NE of Milpitas, CATue, Sep 14, 11:45 AM PDT · 1845 days ago · 5 km deep · 27 km away · felt by 139
23. 2.38km ESE of Fremont, CAWed, Sep 15, 7:08 PM PDT · 1844 days ago · 7 km deep · 34 km away · felt by 6
24. 2.07km NNW of Pinnacles, CAThu, Sep 16, 8:18 PM PDT · 1843 days ago · 7 km deep · 89 km away
25. 1.59km SSW of Tres Pinos, CAThu, Sep 16, 8:48 PM PDT · 1843 days ago · 1 km deep · 68 km away
26. 2.012km NNE of Hollister, CASat, Sep 18, 4:31 AM PDT · 1842 days ago · 8 km deep · 49 km away · felt by 1
27. 1.96km NNE of Los Banos, CASat, Sep 18, 5:20 AM PDT · 1842 days ago · 5 km deep · 77 km away
28. 2.05km NNE of Los Banos, CASat, Sep 18, 5:23 AM PDT · 1842 days ago · 5 km deep · 78 km away
29. 2.15km NNE of Los Banos, CASat, Sep 18, 5:54 AM PDT · 1842 days ago · 6 km deep · 78 km away
30. 2.46km NNE of Los Banos, CASat, Sep 18, 8:44 AM PDT · 1842 days ago · 6 km deep · 78 km away · felt by 4
31. 3.16km WNW of Dublin, CASat, Sep 18, 5:09 PM PDT · 1841 days ago · 7 km deep · 57 km away · felt by 379
32. 1.56km WNW of Dublin, CASat, Sep 18, 5:10 PM PDT · 1841 days ago · 6 km deep · 57 km away
33. 2.112km NNE of Hollister, CASat, Sep 18, 10:56 PM PDT · 1841 days ago · 7 km deep · 49 km away · felt by 2
34. 2.49km ESE of Fremont, CASun, Sep 19, 2:21 AM PDT · 1841 days ago · 7 km deep · 32 km away · felt by 8
35. 1.65km NW of Dublin, CASun, Sep 19, 12:50 PM PDT · 1840 days ago · 6 km deep · 56 km away
36. 1.57km NNW of Pinnacles, CAMon, Sep 20, 11:49 AM PDT · 1839 days ago · 8 km deep · 89 km away
37. 1.52km NNE of Pinnacles, CAMon, Sep 20, 12:10 PM PDT · 1839 days ago · 6 km deep · 95 km away
38. 1.913km SSW of Tres Pinos, CATue, Sep 21, 4:45 AM PDT · 1839 days ago · 10 km deep · 72 km away
39. 1.98km NW of Pinnacles, CATue, Sep 21, 5:30 AM PDT · 1839 days ago · 8 km deep · 89 km away
40. 1.53km NNW of Union City, CATue, Sep 21, 6:01 AM PDT · 1839 days ago · 3 km deep · 49 km away
41. 1.75km NW of Dublin, CATue, Sep 21, 11:39 PM PDT · 1838 days ago · 5 km deep · 56 km away
42. 3.212km W of Moss Landing, CAWed, Sep 22, 2:57 AM PDT · 1838 days ago · 9 km deep · 60 km away · felt by 500
43. 2.59km ENE of Milpitas, CAWed, Sep 22, 10:16 AM PDT · 1838 days ago · 7 km deep · 23 km away · felt by 23
44. 1.94km SW of Newark, CAWed, Sep 22, 11:46 PM PDT · 1837 days ago · 12 km deep · 44 km away · felt by 2
45. 1.85km WNW of Dublin, CAThu, Sep 23, 5:18 PM PDT · 1836 days ago · 7 km deep · 56 km away · felt by 1
46. 1.81km WNW of Walnut Creek, CAThu, Sep 23, 6:44 PM PDT · 1836 days ago · 11 km deep · 78 km away · felt by 2
47. 1.67km NW of Pinnacles, CASat, Sep 25, 7:37 AM PDT · 1835 days ago · 7 km deep · 89 km away
48. 2.12km E of Hayward, CASat, Sep 25, 9:39 AM PDT · 1835 days ago · 3 km deep · 52 km away · felt by 22
49. 1.96km S of Tres Pinos, CASat, Sep 25, 9:03 PM PDT · 1834 days ago · 10 km deep · 68 km away
50. 2.18km SSW of Tres Pinos, CASun, Sep 26, 12:35 PM PDT · 1833 days ago · 3 km deep · 68 km away · felt by 1
51. 1.514km SW of Portola Valley, CAMon, Sep 27, 6:48 PM PDT · 1832 days ago · 4 km deep · 61 km away
52. 1.612km W of Moss Landing, CATue, Sep 28, 1:44 PM PDT · 1831 days ago · 10 km deep · 60 km away
53. 1.710km NW of Pinnacles, CATue, Sep 28, 5:48 PM PDT · 1831 days ago · 1 km deep · 87 km away
54. 2.812km W of Moss Landing, CATue, Sep 28, 11:16 PM PDT · 1831 days ago · 8 km deep · 60 km away · felt by 123
55. 1.75km S of San Juan Bautista, CAWed, Sep 29, 10:10 AM PDT · 1831 days ago · 7 km deep · 55 km away
56. 2.014km SSE of Tres Pinos, CAWed, Sep 29, 11:30 AM PDT · 1830 days ago · 5 km deep · 77 km away
57. 2.86km NW of Pinnacles, CAWed, Sep 29, 3:20 PM PDT · 1830 days ago · 8 km deep · 90 km away · felt by 2
58. 2.07km NNW of Pinnacles, CAWed, Sep 29, 4:07 PM PDT · 1830 days ago · 8 km deep · 89 km away
59. 1.510km E of Alum Rock, CAThu, Sep 30, 12:08 AM PDT · 1830 days ago · 8 km deep · 9 km away
60. 1.54km NNW of Pinnacles, CAThu, Sep 30, 9:52 AM PDT · 1830 days ago · 9 km deep · 92 km away

The first 60 of 128.

Before

1. 1.73km ESE of Aromas, CAMon, Aug 30, 4:41 PM PDT · 1860 days ago · 7 km deep · 46 km away · felt by 2
2. 1.718km SSW of Gustine, CAMon, Aug 30, 6:22 AM PDT · 1861 days ago · 7 km deep · 56 km away
3. 1.74km N of Pinnacles, CAMon, Aug 30, 5:43 AM PDT · 1861 days ago · 6 km deep · 93 km away
4. 1.815km E of Seven Trees, CAMon, Aug 30, 5:14 AM PDT · 1861 days ago · 3 km deep · 1 km away
5. 1.88km NW of Pinnacles, CASun, Aug 29, 6:47 PM PDT · 1861 days ago · 7 km deep · 89 km away · felt by 2
6. 1.77km ENE of Pinnacles, CASun, Aug 29, 5:00 AM PDT · 1862 days ago · 12 km deep · 96 km away · felt by 1
7. 1.78km SSW of Livermore, CASat, Aug 28, 9:50 PM PDT · 1862 days ago · 10 km deep · 37 km away
8. 2.11km NE of Pinnacles, CAFri, Aug 27, 3:50 PM PDT · 1863 days ago · 9 km deep · 96 km away
9. 2.012km NW of Pinnacles, CAFri, Aug 27, 6:45 AM PDT · 1864 days ago · 5 km deep · 84 km away
10. 1.83km SW of Alamo, CAThu, Aug 26, 9:13 PM PDT · 1864 days ago · 12 km deep · 70 km away
11. 1.815km E of Seven Trees, CAMon, Aug 23, 6:46 PM PDT · 1867 days ago · 3 km deep · 1 km away
12. 2.115km E of Seven Trees, CAMon, Aug 23, 6:37 PM PDT · 1867 days ago · 4 km deep · 1 km away · felt by 1
13. 1.82km NW of Pacifica, CAMon, Aug 23, 6:18 PM PDT · 1867 days ago · 8 km deep · 83 km away · felt by 2
14. 1.824km SSW of Los Banos, CAMon, Aug 23, 2:17 PM PDT · 1867 days ago · 6 km deep · 76 km away
15. 1.64km SW of Colma, CAMon, Aug 23, 5:34 AM PDT · 1868 days ago · 7 km deep · 84 km away
16. 1.624km SSW of Los Banos, CAMon, Aug 23, 4:57 AM PDT · 1868 days ago · 2 km deep · 76 km away
17. 3.15km S of Ridgemark, CASat, Aug 21, 12:54 PM PDT · 1869 days ago · 9 km deep · 63 km away · felt by 17
18. 2.99km SW of Tres Pinos, CATue, Aug 17, 2:14 PM PDT · 1873 days ago · 3 km deep · 67 km away · felt by 8
19. 2.410km NW of Pinnacles, CAMon, Aug 16, 11:06 PM PDT · 1874 days ago · 3 km deep · 86 km away · felt by 2
20. 1.81km ENE of Alamo, CAMon, Aug 16, 9:27 AM PDT · 1875 days ago · 13 km deep · 70 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73618291. Read Sun, Oct 4, 2026, 4:51 AM UTC.