M1.8 earthquake 7km W of Cobb, CA

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, May 27, 2021, 10:40 AM PDT

UTC

2021-05-27 17:40:42 UTC

Depth

2.7 km (1.7 mi), shallow

Epicenter

38.832° N, 122.805° 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

±0.15

Depth from

From location

Station coverage gap

28°

Stations used

53

• Cobb, CaliforniaPopulation 1,778. Forecast7 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast21 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast44 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast670 kmNW

After

1. 1.79km NNE of Yountville, CAThu, May 27, 6:53 PM PDT · 1956 days ago · 6 km deep · 59 km away
2. 1.66km NNW of The Geysers, CAFri, May 28, 1:30 AM PDT · 1956 days ago · 3 km deep · 1 km away
3. 1.89km NE of Hidden Valley Lake, CAFri, May 28, 5:57 AM PDT · 1956 days ago · 8 km deep · 28 km away
4. 1.59km NE of Hidden Valley Lake, CAFri, May 28, 11:55 AM PDT · 1956 days ago · 7 km deep · 28 km away
5. 2.07km NW of The Geysers, CAFri, May 28, 9:20 PM PDT · 1955 days ago · 2 km deep · 1 km away
6. 1.78km NNW of Redwood Valley, CASat, May 29, 1:19 AM PDT · 1955 days ago · 7 km deep · 67 km away
7. 1.69km NNW of Redwood Valley, CASat, May 29, 2:15 AM PDT · 1955 days ago · 6 km deep · 68 km away
8. 1.67km E of Willits, CASat, May 29, 2:52 AM PDT · 1955 days ago · 5 km deep · 76 km away
9. 1.710km SW of Ukiah, CASat, May 29, 6:21 PM PDT · 1954 days ago · 1 km deep · 52 km away
10. 2.07km NW of The Geysers, CASun, May 30, 1:00 AM PDT · 1954 days ago · 3 km deep · 1 km away
11. 1.93km NW of The Geysers, CASun, May 30, 3:38 AM PDT · 1954 days ago · 4 km deep · 4 km away
12. 1.73km W of Cobb, CASun, May 30, 4:37 PM PDT · 1953 days ago · 2 km deep · 4 km away
13. 1.73km N of The Geysers, CASun, May 30, 7:33 PM PDT · 1953 days ago · 0 km deep · 5 km away
14. 2.27km E of Willits, CASun, May 30, 11:14 PM PDT · 1953 days ago · 7 km deep · 76 km away
15. 1.62km NW of The Geysers, CAMon, May 31, 8:08 AM PDT · 1953 days ago · 2 km deep · 6 km away
16. 2.16km WNW of The Geysers, CAMon, May 31, 11:44 AM PDT · 1953 days ago · 3 km deep · 3 km away
17. 1.76km NW of The Geysers, CAMon, May 31, 6:13 PM PDT · 1952 days ago · 3 km deep · 2 km away
18. 1.89km NNW of Redwood Valley, CATue, Jun 1, 11:34 AM PDT · 1952 days ago · 5 km deep · 68 km away
19. 1.86km E of Willits, CATue, Jun 1, 3:57 PM PDT · 1951 days ago · 1 km deep · 77 km away
20. 1.612km ENE of Cloverdale, CATue, Jun 1, 7:28 PM PDT · 1951 days ago · 3 km deep · 7 km away
21. 1.56km NW of The Geysers, CATue, Jun 1, 10:47 PM PDT · 1951 days ago · 3 km deep · 2 km away
22. 1.94km NNW of Lake Pillsbury, CAWed, Jun 2, 4:44 AM PDT · 1951 days ago · 10 km deep · 69 km away
23. 1.57km NW of The Geysers, CAWed, Jun 2, 8:08 AM PDT · 1951 days ago · 2 km deep · 1 km away
24. 2.38km NW of The Geysers, CAWed, Jun 2, 10:34 PM PDT · 1950 days ago · 2 km deep · 1 km away
25. 2.28km W of Cobb, CAThu, Jun 3, 12:11 AM PDT · 1950 days ago · 2 km deep · 0 km away
26. 2.012km WNW of Lake Pillsbury, CAThu, Jun 3, 5:52 AM PDT · 1950 days ago · 4 km deep · 73 km away
27. 1.58km W of Cobb, CAThu, Jun 3, 6:21 AM PDT · 1950 days ago · 2 km deep · 0 km away
28. 1.510km WNW of Cobb, CAThu, Jun 3, 8:34 PM PDT · 1949 days ago · 1 km deep · 4 km away
29. 1.94km W of Cobb, CAFri, Jun 4, 3:42 AM PDT · 1949 days ago · 2 km deep · 4 km away
30. 1.66km NW of The Geysers, CAFri, Jun 4, 9:37 AM PDT · 1949 days ago · 3 km deep · 1 km away
31. 1.96km NW of The Geysers, CAFri, Jun 4, 8:30 PM PDT · 1948 days ago · 3 km deep · 1 km away
32. 1.98km NNW of Redwood Valley, CASat, Jun 5, 9:44 PM PDT · 1947 days ago · 6 km deep · 67 km away
33. 1.516km E of Navarro Head, CASun, Jun 6, 3:35 AM PDT · 1947 days ago · 5 km deep · 76 km away
34. 2.16km WNW of The Geysers, CASun, Jun 6, 3:45 AM PDT · 1947 days ago · 3 km deep · 3 km away
35. 1.96km SSE of Redwood Valley, CASun, Jun 6, 6:45 PM PDT · 1946 days ago · 2 km deep · 54 km away
36. 1.95km SSE of Redwood Valley, CASun, Jun 6, 6:45 PM PDT · 1946 days ago · 5 km deep · 54 km away · felt by 1
37. 1.83km SW of Anderson Springs, CAMon, Jun 7, 2:41 PM PDT · 1945 days ago · 2 km deep · 11 km away
38. 2.22km NNE of The Geysers, CAMon, Jun 7, 3:00 PM PDT · 1945 days ago · 2 km deep · 6 km away
39. 2.45km NW of The Geysers, CAMon, Jun 7, 10:39 PM PDT · 1945 days ago · 2 km deep · 2 km away · felt by 4
40. 1.76km NW of The Geysers, CAMon, Jun 7, 11:07 PM PDT · 1945 days ago · 3 km deep · 2 km away
41. 1.910km SE of Willits, CATue, Jun 8, 3:26 AM PDT · 1945 days ago · 6 km deep · 70 km away
42. 1.510km SE of Willits, CATue, Jun 8, 11:11 AM PDT · 1945 days ago · 5 km deep · 70 km away
43. 1.914km SE of Lake Pillsbury, CATue, Jun 8, 5:27 PM PDT · 1944 days ago · 4 km deep · 56 km away
44. 2.011km W of Alder Springs, CAWed, Jun 9, 1:01 PM PDT · 1944 days ago · -1 km deep · 93 km away
45. 1.77km W of Cobb, CAWed, Jun 9, 10:38 PM PDT · 1943 days ago · 3 km deep · 0 km away
46. 1.57km NW of The Geysers, CAThu, Jun 10, 3:23 AM PDT · 1943 days ago · 2 km deep · 1 km away
47. 1.63km NNW of The Geysers, CAThu, Jun 10, 1:00 PM PDT · 1943 days ago · 0 km deep · 5 km away
48. 1.57km NW of The Geysers, CASat, Jun 12, 4:18 AM PDT · 1941 days ago · 3 km deep · 1 km away
49. 1.54km W of Cobb, CASat, Jun 12, 12:23 PM PDT · 1941 days ago · 2 km deep · 4 km away
50. 1.88km W of Cobb, CASat, Jun 12, 2:13 PM PDT · 1940 days ago · 2 km deep · 1 km away
51. 4.07km WNW of The Geysers, CASat, Jun 12, 11:54 PM PDT · 1940 days ago · 3 km deep · 3 km away · felt by 83
52. 1.68km WNW of The Geysers, CASun, Jun 13, 2:21 AM PDT · 1940 days ago · 2 km deep · 4 km away
53. 1.816km NE of Upper Lake, CASun, Jun 13, 11:44 AM PDT · 1940 days ago · 2 km deep · 49 km away
54. 4.07km WNW of The Geysers, CASun, Jun 13, 8:16 PM PDT · 1939 days ago · 4 km deep · 4 km away · felt by 22
55. 3.09km WNW of The Geysers, CASun, Jun 13, 8:16 PM PDT · 1939 days ago · 2 km deep · 4 km away · felt by 3
56. 1.58km NW of The Geysers, CAMon, Jun 14, 5:22 AM PDT · 1939 days ago · 2 km deep · 1 km away
57. 1.86km N of Lake Pillsbury, CAMon, Jun 14, 6:53 AM PDT · 1939 days ago · 1 km deep · 72 km away
58. 1.68km ENE of Willits, CAMon, Jun 14, 7:41 AM PDT · 1939 days ago · 7 km deep · 78 km away
59. 1.810km SE of Willits, CAMon, Jun 14, 9:28 AM PDT · 1939 days ago · 5 km deep · 70 km away
60. 2.212km E of Navarro Head, CAMon, Jun 14, 11:11 AM PDT · 1939 days ago · 4 km deep · 81 km away

The first 60 of 185.

Before

1. 1.915km N of Brooktrails, CAThu, May 27, 9:16 AM PDT · 1957 days ago · 7 km deep · 97 km away
2. 1.66km NNW of The Geysers, CAThu, May 27, 1:03 AM PDT · 1957 days ago · 3 km deep · 1 km away
3. 2.84km NW of Cobb, CAWed, May 26, 10:54 AM PDT · 1958 days ago · 1 km deep · 4 km away · felt by 1
4. 1.710km WNW of The Geysers, CAWed, May 26, 3:52 AM PDT · 1958 days ago · 2 km deep · 4 km away
5. 1.69km WNW of The Geysers, CATue, May 25, 9:26 PM PDT · 1958 days ago · 3 km deep · 4 km away
6. 2.94km SSE of Redwood Valley, CATue, May 25, 9:14 PM PDT · 1958 days ago · 5 km deep · 55 km away · felt by 232
7. 2.34km NNW of The Geysers, CATue, May 25, 12:15 PM PDT · 1959 days ago · 2 km deep · 4 km away · felt by 1
8. 2.012km WNW of Redwood Valley, CATue, May 25, 3:19 AM PDT · 1959 days ago · 5 km deep · 69 km away
9. 2.17km ESE of Roseland, CATue, May 25, 2:59 AM PDT · 1959 days ago · 10 km deep · 50 km away · felt by 2
10. 1.97km NW of The Geysers, CATue, May 25, 1:14 AM PDT · 1959 days ago · 3 km deep · 2 km away
11. 1.810km NNW of Redwood Valley, CAMon, May 24, 8:27 PM PDT · 1959 days ago · 7 km deep · 68 km away
12. 2.02km NW of The Geysers, CAMon, May 24, 12:58 PM PDT · 1960 days ago · 4 km deep · 5 km away
13. 1.611km NNE of Boonville, CAMon, May 24, 10:17 AM PDT · 1960 days ago · -1 km deep · 55 km away
14. 1.518km NNW of Cloverdale, CAMon, May 24, 3:37 AM PDT · 1960 days ago · 3 km deep · 30 km away
15. 2.24km NW of The Geysers, CASun, May 23, 9:38 AM PDT · 1961 days ago · 3 km deep · 4 km away
16. 1.76km NW of The Geysers, CASun, May 23, 6:54 AM PDT · 1961 days ago · 3 km deep · 1 km away
17. 2.610km NNW of Redwood Valley, CASat, May 22, 7:39 PM PDT · 1961 days ago · 5 km deep · 69 km away · felt by 7
18. 1.65km NW of The Geysers, CASat, May 22, 7:19 PM PDT · 1961 days ago · 1 km deep · 3 km away
19. 1.65km NW of The Geysers, CAFri, May 21, 7:39 PM PDT · 1962 days ago · 1 km deep · 3 km away
20. 1.98km WNW of Cobb, CAFri, May 21, 6:35 PM PDT · 1962 days ago · 3 km deep · 1 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73566191. Read Mon, Oct 5, 2026, 7:42 AM UTC.