M1.7 earthquake 8km SW of Atascadero, CA

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Oct 13, 2021, 4:38 AM PDT

UTC

2021-10-13 11:38:37 UTC

Depth

7.3 km (4.6 mi), shallow

Epicenter

35.433° N, 120.721° 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

37°

Stations used

46

• Atascadero, CaliforniaPopulation 29,819. Forecast8 kmSW
• Santa Maria, CaliforniaPopulation 105,093. Forecast59 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast273 kmNW

After

1. 1.822km NNE of San Ardo, CAThu, Oct 14, 7:05 AM PDT · 1815 days ago · 4 km deep · 84 km away
2. 1.610km NNE of San Simeon, CAFri, Oct 15, 10:41 AM PDT · 1814 days ago · 8 km deep · 49 km away
3. 1.917km NNE of San Simeon, CAFri, Oct 15, 12:26 PM PDT · 1814 days ago · 6 km deep · 52 km away
4. 2.88km NE of Coalinga, CAMon, Oct 18, 2:42 AM PDT · 1811 days ago · 10 km deep · 93 km away
5. 3.47km NE of Coalinga, CAMon, Oct 18, 2:45 AM PDT · 1811 days ago · 10 km deep · 92 km away · felt by 24
6. 1.96km SSW of Huron, CAMon, Oct 18, 3:47 PM PDT · 1811 days ago · 10 km deep · 96 km away
7. 2.413km ESE of Kettleman City, CAMon, Oct 18, 11:49 PM PDT · 1811 days ago · 5 km deep · 99 km away · felt by 1
8. 1.77km NE of Coalinga, CAWed, Oct 20, 9:51 PM PDT · 1809 days ago · 10 km deep · 92 km away
9. 1.912km ESE of Kettleman City, CAThu, Oct 21, 7:07 AM PDT · 1808 days ago · 9 km deep · 98 km away
10. 1.713km ESE of Kettleman City, CAThu, Oct 21, 3:51 PM PDT · 1808 days ago · 8 km deep · 99 km away · felt by 1
11. 4.718km NW of San Simeon, CAMon, Oct 25, 4:42 PM PDT · 1804 days ago · 8 km deep · 65 km away · felt by 619 · tsunami flag
12. 3.517km NW of San Simeon, CAMon, Oct 25, 4:49 PM PDT · 1804 days ago · 6 km deep · 65 km away · felt by 35
13. 1.919km NW of San Simeon, CAMon, Oct 25, 5:02 PM PDT · 1804 days ago · 6 km deep · 66 km away · felt by 3
14. 1.817km NNW of San Simeon, CAMon, Oct 25, 6:15 PM PDT · 1804 days ago · 4 km deep · 64 km away
15. 2.218km NW of San Simeon, CAMon, Oct 25, 7:02 PM PDT · 1804 days ago · 7 km deep · 66 km away · felt by 2
16. 2.218km NNW of San Simeon, CAMon, Oct 25, 7:31 PM PDT · 1804 days ago · 6 km deep · 65 km away
17. 2.020km NNW of San Simeon, CAMon, Oct 25, 8:11 PM PDT · 1804 days ago · 5 km deep · 66 km away
18. 1.918km NNW of San Simeon, CAMon, Oct 25, 8:59 PM PDT · 1804 days ago · 6 km deep · 65 km away
19. 1.618km NNW of San Simeon, CAMon, Oct 25, 11:33 PM PDT · 1804 days ago · 5 km deep · 64 km away
20. 1.918km NNW of San Simeon, CAWed, Oct 27, 5:06 AM PDT · 1802 days ago · 7 km deep · 65 km away
21. 1.918km NNW of San Simeon, CAWed, Oct 27, 8:29 PM PDT · 1802 days ago · 6 km deep · 65 km away
22. 2.24km ESE of Cholame, CAFri, Oct 29, 2:23 PM PDT · 1800 days ago · 13 km deep · 52 km away · felt by 1
23. 1.822km NW of Parkfield, CAFri, Oct 29, 3:25 PM PDT · 1800 days ago · 0 km deep · 68 km away
24. 1.68km SSE of Huron, CASat, Oct 30, 2:32 AM PDT · 1799 days ago · 9 km deep · 97 km away
25. 1.619km NNW of San Simeon, CASat, Oct 30, 3:00 PM PDT · 1799 days ago · 3 km deep · 66 km away
26. 1.624km NW of San Simeon, CASun, Oct 31, 12:51 AM PDT · 1799 days ago · 13 km deep · 71 km away
27. 1.620km NNW of San Simeon, CAFri, Nov 5, 8:11 PM PDT · 1793 days ago · 6 km deep · 66 km away
28. 1.511km NNE of Cambria, CATue, Nov 9, 10:29 AM PST · 1789 days ago · 6 km deep · 39 km away
29. 2.222km NE of San Lucas, CATue, Nov 9, 6:21 PM PST · 1789 days ago · 7 km deep · 90 km away
30. 1.719km NNW of San Simeon, CATue, Nov 9, 6:43 PM PST · 1789 days ago · 6 km deep · 65 km away
31. 1.710km N of San Simeon, CATue, Nov 9, 9:29 PM PST · 1789 days ago · 9 km deep · 53 km away
32. 1.60km ENE of Kettleman City, CAWed, Nov 10, 12:44 PM PST · 1788 days ago · -1 km deep · 94 km away
33. 1.718km NW of San Simeon, CAThu, Nov 11, 9:58 PM PST · 1787 days ago · 7 km deep · 65 km away
34. 2.310km S of Lopez Point, CASun, Nov 14, 11:37 PM PST · 1784 days ago · 12 km deep · 96 km away
35. 3.27km NW of Parkfield, CAMon, Nov 15, 1:28 AM PST · 1783 days ago · 10 km deep · 61 km away · felt by 12
36. 1.622km WNW of Buttonwillow, CATue, Nov 16, 7:12 AM PST · 1782 days ago · 28 km deep · 93 km away
37. 1.719km NNW of San Simeon, CAThu, Nov 18, 10:36 PM PST · 1780 days ago · 6 km deep · 65 km away
38. 1.727km S of Lopez Point, CAThu, Nov 18, 11:13 PM PST · 1780 days ago · 16 km deep · 85 km away
39. 1.726km NW of San Simeon, CASun, Nov 21, 12:24 PM PST · 1777 days ago · 8 km deep · 75 km away
40. 1.623km ENE of San Ardo, CAMon, Nov 22, 1:01 PM PST · 1776 days ago · 4 km deep · 74 km away
41. 1.518km NNW of San Simeon, CAMon, Nov 22, 5:33 PM PST · 1776 days ago · 5 km deep · 64 km away
42. 2.118km NNW of San Simeon, CAMon, Nov 22, 11:06 PM PST · 1776 days ago · 8 km deep · 65 km away
43. 1.618km NNW of San Simeon, CATue, Nov 23, 10:00 AM PST · 1775 days ago · 9 km deep · 62 km away
44. 1.819km NW of San Simeon, CATue, Nov 23, 9:34 PM PST · 1775 days ago · 2 km deep · 67 km away
45. 1.512km NW of Parkfield, CAWed, Nov 24, 3:48 AM PST · 1774 days ago · 8 km deep · 62 km away
46. 1.824km NW of Parkfield, CASat, Nov 27, 7:02 AM PST · 1771 days ago · 3 km deep · 69 km away
47. 1.620km NNW of San Simeon, CATue, Nov 30, 2:59 PM PST · 1768 days ago · 8 km deep · 66 km away
48. 1.718km NW of San Simeon, CAWed, Dec 1, 3:45 AM PST · 1767 days ago · 9 km deep · 66 km away
49. 2.617km NNW of San Simeon, CAWed, Dec 8, 5:04 PM PST · 1760 days ago · 5 km deep · 64 km away · felt by 1
50. 2.118km NNW of San Simeon, CAFri, Dec 10, 10:57 PM PST · 1758 days ago · 5 km deep · 64 km away

Before

1. 2.99km SE of Kettleman City, CAThu, Oct 7, 5:44 PM PDT · 1822 days ago · 29 km deep · 95 km away · felt by 1
2. 1.513km NE of Coalinga, CAMon, Oct 4, 1:12 AM PDT · 1826 days ago · 11 km deep · 97 km away
3. 1.66km NNW of Cholame, CASun, Oct 3, 11:36 PM PDT · 1826 days ago · 8 km deep · 52 km away
4. 1.510km SE of Avenal, CAThu, Sep 30, 8:06 PM PDT · 1829 days ago · 11 km deep · 83 km away
5. 1.66km WSW of Kettleman City, CAWed, Sep 29, 12:52 PM PDT · 1830 days ago · 4 km deep · 88 km away
6. 3.24km NNW of Cholame, CATue, Sep 28, 12:41 PM PDT · 1831 days ago · 4 km deep · 52 km away · felt by 4
7. 2.810km W of Avenal, CASun, Sep 26, 10:52 AM PDT · 1833 days ago · 16 km deep · 78 km away · felt by 4
8. 1.910km W of Avenal, CASun, Sep 26, 10:49 AM PDT · 1833 days ago · 15 km deep · 78 km away
9. 1.611km WSW of Templeton, CAFri, Sep 24, 8:20 PM PDT · 1835 days ago · 6 km deep · 14 km away · felt by 1
10. 2.211km NW of Parkfield, CAFri, Sep 24, 8:04 AM PDT · 1835 days ago · 10 km deep · 62 km away
11. 2.122km NE of San Lucas, CAFri, Sep 17, 6:22 PM PDT · 1842 days ago · 7 km deep · 91 km away
12. 2.823km NW of Parkfield, CAWed, Sep 15, 7:45 PM PDT · 1844 days ago · 4 km deep · 69 km away · felt by 2
13. 1.613km NW of Avenal, CAWed, Sep 15, 6:06 PM PDT · 1844 days ago · 11 km deep · 87 km away
14. 2.35km SSE of Parkfield, CAWed, Sep 15, 5:51 AM PDT · 1844 days ago · 5 km deep · 55 km away
15. 3.815km SSE of New Idria, CATue, Sep 14, 12:38 AM PDT · 1846 days ago · 17 km deep · 97 km away · felt by 29
16. 2.313km NNE of Cambria, CAMon, Sep 13, 6:22 PM PDT · 1846 days ago · 7 km deep · 38 km away · felt by 2
17. 1.99km NNW of Avenal, CAMon, Sep 13, 9:57 AM PDT · 1846 days ago · 12 km deep · 86 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73639070. Read Sat, Oct 3, 2026, 7:43 PM UTC.