M1.7 earthquake 17km E of Petrolia, CA

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, May 27, 2021, 2:53 AM PDT

UTC

2021-05-27 09:53:05 UTC

Depth

26.6 km (16.5 mi), shallow

Epicenter

40.309° N, 124.084° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.26

Depth from

From location

Station coverage gap

72°

Stations used

19

• Scotia, CaliforniaPopulation 850. Forecast19 kmS
• Fortuna, CaliforniaPopulation 12,000. Forecast33 kmS
• Chico, CaliforniaPopulation 121,345. Forecast202 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast867 kmNW

After

1. 1.719km SW of Laytonville, CAThu, May 27, 2:47 PM PDT · 1955 days ago · 8 km deep · 94 km away
2. 2.522km W of Petrolia, CASat, May 29, 9:34 AM PDT · 1953 days ago · 21 km deep · 39 km away · felt by 1
3. 2.836km WNW of Petrolia, CATue, Jun 1, 8:27 AM PDT · 1951 days ago · 20 km deep · 53 km away
4. 2.130km NE of Redway, CAWed, Jun 2, 4:00 AM PDT · 1950 days ago · 23 km deep · 43 km away
5. 2.815km WNW of Willow Creek, CAThu, Jun 3, 12:34 PM PDT · 1948 days ago · 23 km deep · 78 km away
6. 2.216km W of Petrolia, CAFri, Jun 4, 3:57 PM PDT · 1947 days ago · 15 km deep · 33 km away
7. 2.121km W of Petrolia, CASat, Jun 5, 4:47 PM PDT · 1946 days ago · 18 km deep · 38 km away
8. 2.112km WNW of Petrolia, CASun, Jun 6, 3:33 AM PDT · 1946 days ago · 17 km deep · 29 km away
9. 2.132km W of Hayfork, CAMon, Jun 7, 6:49 AM PDT · 1945 days ago · 6 km deep · 52 km away
10. 1.822km NW of Petrolia, CAMon, Jun 7, 5:28 PM PDT · 1944 days ago · 20 km deep · 38 km away
11. 2.513km N of Petrolia, CAWed, Jun 9, 6:49 AM PDT · 1943 days ago · 28 km deep · 21 km away
12. 1.623km W of Petrolia, CAThu, Jun 10, 10:37 PM PDT · 1941 days ago · 15 km deep · 40 km away
13. 1.84km NW of Petrolia, CASat, Jun 12, 6:17 PM PDT · 1939 days ago · 29 km deep · 20 km away
14. 2.445km W of Ferndale, CASun, Jun 13, 2:06 PM PDT · 1938 days ago · 24 km deep · 65 km away
15. 1.714km E of Rio Dell, CAMon, Jun 14, 1:49 PM PDT · 1937 days ago · 20 km deep · 22 km away
16. 1.614km E of Rio Dell, CAMon, Jun 14, 11:49 PM PDT · 1937 days ago · 21 km deep · 22 km away
17. 1.94km NNW of Laytonville, CATue, Jun 15, 3:36 AM PDT · 1937 days ago · 12 km deep · 82 km away
18. 1.516km WNW of Petrolia, CATue, Jun 15, 4:27 AM PDT · 1937 days ago · 16 km deep · 33 km away
19. 2.116km ESE of Willow Creek, CAWed, Jun 16, 8:03 PM PDT · 1935 days ago · 21 km deep · 84 km away
20. 2.417km NW of Petrolia, CAWed, Jun 16, 11:18 PM PDT · 1935 days ago · 23 km deep · 32 km away
21. 2.110km WSW of Petrolia, CASat, Jun 19, 2:07 AM PDT · 1933 days ago · 17 km deep · 27 km away
22. 2.842km W of Petrolia, CASun, Jun 20, 3:16 AM PDT · 1932 days ago · 19 km deep · 59 km away
23. 1.59km WSW of Petrolia, CAMon, Jun 21, 3:57 PM PDT · 1930 days ago · 9 km deep · 25 km away
24. 1.611km SE of Laytonville, CATue, Jun 22, 12:12 AM PDT · 1930 days ago · 7 km deep · 96 km away
25. 2.27km NE of Shelter Cove, CAThu, Jun 24, 5:03 AM PDT · 1928 days ago · 21 km deep · 27 km away
26. 2.228km NW of Weaverville, CAFri, Jun 25, 3:17 PM PDT · 1926 days ago · 32 km deep · 98 km away
27. 2.966km W of Petrolia, CAFri, Jun 25, 11:34 PM PDT · 1926 days ago · 8 km deep · 83 km away · felt by 3
28. 2.220km SE of Willow Creek, CASat, Jun 26, 9:15 AM PDT · 1925 days ago · 23 km deep · 77 km away
29. 1.58km SSE of Laytonville, CASat, Jun 26, 11:15 AM PDT · 1925 days ago · 8 km deep · 94 km away
30. 1.88km ESE of Redway, CASat, Jun 26, 11:13 PM PDT · 1925 days ago · 22 km deep · 39 km away
31. 2.436km NNE of Redway, CASun, Jun 27, 1:34 AM PDT · 1925 days ago · 29 km deep · 41 km away
32. 1.89km W of Willow Creek, CAMon, Jun 28, 7:30 PM PDT · 1923 days ago · 12 km deep · 75 km away
33. 2.311km SSW of Ferndale, CAWed, Jun 30, 12:26 PM PDT · 1921 days ago · 19 km deep · 27 km away
34. 2.015km SW of Petrolia, CAFri, Jul 2, 3:51 PM PDT · 1919 days ago · 7 km deep · 28 km away
35. 2.124km WNW of Weaverville, CASun, Jul 4, 8:36 AM PDT · 1917 days ago · 32 km deep · 90 km away · felt by 1
36. 1.722km W of Petrolia, CASun, Jul 4, 1:35 PM PDT · 1917 days ago · 26 km deep · 39 km away
37. 2.011km SSW of Ferndale, CATue, Jul 6, 5:19 PM PDT · 1915 days ago · 19 km deep · 27 km away
38. 2.411km W of Laytonville, CASat, Jul 10, 1:59 AM PDT · 1912 days ago · 4 km deep · 80 km away
39. 2.821km W of Petrolia, CASat, Jul 10, 3:32 AM PDT · 1912 days ago · 20 km deep · 38 km away
40. 2.022km W of Petrolia, CASat, Jul 10, 3:35 AM PDT · 1912 days ago · 19 km deep · 39 km away
41. 1.87km W of Laytonville, CASat, Jul 10, 7:16 PM PDT · 1911 days ago · 4 km deep · 82 km away
42. 3.457km W of Petrolia, CASun, Jul 11, 8:43 PM PDT · 1910 days ago · 6 km deep · 74 km away · felt by 7
43. 1.79km SSW of Ferndale, CASun, Jul 11, 11:51 PM PDT · 1910 days ago · 18 km deep · 27 km away
44. 1.69km SSW of Ferndale, CASun, Jul 11, 11:58 PM PDT · 1910 days ago · 19 km deep · 27 km away
45. 1.89km SSW of Ferndale, CAMon, Jul 12, 12:38 AM PDT · 1910 days ago · 18 km deep · 27 km away
46. 2.48km WSW of Petrolia, CATue, Jul 13, 5:55 AM PDT · 1909 days ago · 20 km deep · 25 km away
47. 2.421km W of Petrolia, CAThu, Jul 15, 5:21 AM PDT · 1907 days ago · 8 km deep · 38 km away
48. 5.112km W of Petrolia, CASat, Jul 17, 11:46 PM PDT · 1904 days ago · 31 km deep · 29 km away · felt by 751
49. 2.49km W of Petrolia, CASun, Jul 18, 12:05 AM PDT · 1904 days ago · 29 km deep · 26 km away · felt by 7
50. 2.14km SW of Petrolia, CASun, Jul 18, 12:38 AM PDT · 1904 days ago · 31 km deep · 21 km away
51. 1.69km SSE of Redway, CATue, Jul 20, 2:28 AM PDT · 1902 days ago · 19 km deep · 39 km away
52. 2.519km SE of Bayside, CATue, Jul 20, 6:57 PM PDT · 1901 days ago · 25 km deep · 48 km away
53. 4.312km WSW of Petrolia, CAWed, Jul 21, 3:05 AM PDT · 1901 days ago · 35 km deep · 28 km away · felt by 25
54. 2.856km WNW of Petrolia, CAWed, Jul 21, 3:36 AM PDT · 1901 days ago · 15 km deep · 73 km away · felt by 3
55. 1.716km SW of Ferndale, CAWed, Jul 21, 3:45 AM PDT · 1901 days ago · 25 km deep · 32 km away
56. 2.840km WNW of Petrolia, CAWed, Jul 21, 5:25 AM PDT · 1901 days ago · 24 km deep · 57 km away
57. 1.733km ENE of Hydesville, CAWed, Jul 21, 6:25 AM PDT · 1901 days ago · 26 km deep · 48 km away
58. 2.733km WNW of Petrolia, CAThu, Jul 22, 8:42 PM PDT · 1899 days ago · 23 km deep · 50 km away
59. 1.710km SSE of Laytonville, CAThu, Jul 22, 11:57 PM PDT · 1899 days ago · 9 km deep · 96 km away
60. 2.77km W of Petrolia, CAFri, Jul 23, 1:09 PM PDT · 1898 days ago · 29 km deep · 24 km away · felt by 2

The first 60 of 64.

Before

1. 1.635km E of Hydesville, CAWed, May 26, 11:18 PM PDT · 1956 days ago · 24 km deep · 41 km away
2. 1.52km WNW of Laytonville, CAMon, May 24, 6:54 PM PDT · 1958 days ago · 4 km deep · 84 km away
3. 2.23km NW of Willow Creek, CAMon, May 24, 2:09 AM PDT · 1959 days ago · 23 km deep · 81 km away
4. 2.544km W of Ferndale, CAMon, May 24, 12:15 AM PDT · 1959 days ago · 18 km deep · 68 km away
5. 1.911km N of Covelo, CASun, May 23, 11:00 PM PDT · 1959 days ago · 8 km deep · 85 km away
6. 2.931km WNW of Petrolia, CASat, May 22, 4:14 PM PDT · 1960 days ago · 22 km deep · 48 km away
7. 2.531km WNW of Weaverville, CASat, May 22, 12:35 PM PDT · 1960 days ago · 23 km deep · 95 km away
8. 2.420km NW of Bayview, CAThu, May 20, 5:19 PM PDT · 1962 days ago · 22 km deep · 69 km away
9. 1.816km W of Petrolia, CATue, May 18, 11:56 AM PDT · 1964 days ago · 10 km deep · 33 km away
10. 1.614km WSW of Petrolia, CATue, May 18, 5:05 AM PDT · 1965 days ago · 12 km deep · 30 km away
11. 2.223km W of Petrolia, CATue, May 18, 12:09 AM PDT · 1965 days ago · 19 km deep · 40 km away
12. 1.98km NW of Laytonville, CAMon, May 17, 7:04 PM PDT · 1965 days ago · 8 km deep · 78 km away
13. 2.412km W of Petrolia, CAMon, May 17, 8:58 AM PDT · 1965 days ago · 15 km deep · 29 km away
14. 2.515km WSW of Petrolia, CAMon, May 17, 2:39 AM PDT · 1966 days ago · 20 km deep · 32 km away
15. 2.813km W of Petrolia, CAMon, May 17, 12:09 AM PDT · 1966 days ago · 16 km deep · 30 km away · felt by 1
16. 2.88km W of Redway, CASun, May 16, 11:36 PM PDT · 1966 days ago · 18 km deep · 25 km away · felt by 5
17. 1.88km W of Redway, CASun, May 16, 8:07 AM PDT · 1967 days ago · 18 km deep · 25 km away
18. 2.98km W of Redway, CASun, May 16, 6:26 AM PDT · 1967 days ago · 19 km deep · 25 km away · felt by 4
19. 2.05km WSW of Laytonville, CASat, May 15, 9:39 AM PDT · 1967 days ago · 3 km deep · 85 km away
20. 2.71km NNE of Humboldt Hill, CAFri, May 14, 8:02 PM PDT · 1968 days ago · 5 km deep · 48 km away · felt by 199

From the USGS Earthquake Hazards Program and its partner networks, event nc73566006. Read Sun, Oct 4, 2026, 3:03 AM UTC.