M1.8 earthquake 1 km WNW of Avenal, California

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Aug 25, 1987, 7:30 AM PDT

UTC

1987-08-25 14:30:03 UTC

Depth

13.4 km (8.3 mi), shallow

Epicenter

36.014° N, 120.148° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.0 km in depth

Magnitude uncertainty

±0.11

Depth from

From location

Station coverage gap

165°

Stations used

19

• Avenal, CaliforniaPopulation 13,301. Forecast2 kmWNW
• Visalia, CaliforniaPopulation 130,104. Forecast84 kmWSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast279 kmNW

After

1. 2.023 km NE of San Lucas, CaliforniaWed, Aug 26, 2:56 AM PDT · 14283 days ago · 7 km deep · 68 km away
2. 2.810 km N of Coalinga, CaliforniaWed, Aug 26, 3:13 AM PDT · 14283 days ago · 10 km deep · 32 km away
3. 2.38 km S of Huron, CaliforniaWed, Aug 26, 7:43 AM PDT · 14283 days ago · 6 km deep · 13 km away
4. 2.38 km W of Huron, CaliforniaWed, Aug 26, 3:08 PM PDT · 14283 days ago · 15 km deep · 20 km away
5. 2.09 km SE of Avenal, CaliforniaThu, Aug 27, 11:17 AM PDT · 14282 days ago · -1 km deep · 11 km away
6. 2.312 km NW of Parkfield, CaliforniaFri, Aug 28, 1:39 PM PDT · 14281 days ago · 10 km deep · 34 km away
7. 1.512 km SW of Huron, CaliforniaSat, Aug 29, 2:05 AM PDT · 14280 days ago · 13 km deep · 12 km away
8. 1.7Central CaliforniaSat, Aug 29, 2:45 AM PDT · 14280 days ago · 11 km deep · 50 km away
9. 2.9Central CaliforniaSat, Aug 29, 5:45 AM PDT · 14280 days ago · 6 km deep · 64 km away
10. 2.311 km SSW of Three Rocks, CaliforniaSat, Aug 29, 7:07 PM PDT · 14280 days ago · 10 km deep · 50 km away
11. 1.92 km S of Oak Shores, CaliforniaMon, Aug 31, 12:21 PM PDT · 14278 days ago · 8 km deep · 81 km away
12. 2.032 km WNW of Three Rocks, CaliforniaMon, Aug 31, 3:56 PM PDT · 14278 days ago · 7 km deep · 84 km away
13. 1.81 km NW of Three Rocks, CaliforniaTue, Sep 1, 1:26 PM PDT · 14277 days ago · 5 km deep · 60 km away
14. 1.823 km NNE of San Lucas, CaliforniaWed, Sep 2, 1:03 AM PDT · 14276 days ago · 6 km deep · 75 km away
15. 1.823 km NW of Parkfield, CaliforniaTue, Sep 8, 3:45 PM PDT · 14270 days ago · 6 km deep · 42 km away
16. 1.524 km NE of Greenfield, CaliforniaWed, Sep 9, 7:40 AM PDT · 14269 days ago · 5 km deep · 97 km away
17. 1.515 km NNE of Coalinga, CaliforniaFri, Sep 11, 3:43 AM PDT · 14267 days ago · 9 km deep · 32 km away
18. 1.78 km ESE of Coalinga, CaliforniaFri, Sep 11, 8:04 PM PDT · 14267 days ago · 9 km deep · 16 km away
19. 2.024km SSE of Kettleman City, CAFri, Sep 11, 8:55 PM PDT · 14267 days ago · 5 km deep · 34 km away
20. 1.917 km NW of Parkfield, CaliforniaSun, Sep 13, 9:01 AM PDT · 14265 days ago · 5 km deep · 38 km away
21. 2.33 km E of San Luis Obispo, CaliforniaSun, Sep 13, 7:56 PM PDT · 14265 days ago · 9 km deep · 92 km away
22. 2.215 km WNW of Oak Shores, CaliforniaMon, Sep 14, 4:56 AM PDT · 14264 days ago · 5 km deep · 93 km away
23. 3.412 km NNW of Kettleman City, CaliforniaMon, Sep 14, 7:06 PM PDT · 14264 days ago · 24 km deep · 18 km away
24. 2.08 km SW of Stratford, CaliforniaMon, Sep 14, 7:10 PM PDT · 14264 days ago · 25 km deep · 27 km away
25. 1.513 km NNE of Coalinga, CaliforniaTue, Sep 15, 12:49 AM PDT · 14263 days ago · 9 km deep · 31 km away
26. 3.316 km NNW of Coalinga, CaliforniaTue, Sep 15, 3:48 AM PDT · 14263 days ago · 9 km deep · 38 km away
27. 1.715 km NNW of Coalinga, CaliforniaWed, Sep 16, 12:32 PM PDT · 14262 days ago · 9 km deep · 37 km away
28. 3.113 km N of Coalinga, CaliforniaFri, Sep 18, 2:40 AM PDT · 14260 days ago · 9 km deep · 34 km away
29. 1.64 km NW of Parkfield, CaliforniaFri, Sep 18, 3:50 AM PDT · 14260 days ago · 5 km deep · 31 km away
30. 1.94 km NW of Parkfield, CaliforniaFri, Sep 18, 3:50 AM PDT · 14260 days ago · 5 km deep · 31 km away
31. 1.94 km NW of Parkfield, CaliforniaFri, Sep 18, 3:55 AM PDT · 14260 days ago · 5 km deep · 31 km away
32. 2.24 km NW of Parkfield, CaliforniaFri, Sep 18, 5:02 PM PDT · 14260 days ago · 5 km deep · 31 km away
33. 2.08 km ENE of Coalinga, CaliforniaSun, Sep 20, 3:15 PM PDT · 14258 days ago · 10 km deep · 21 km away
34. 1.66 km ENE of Coalinga, CaliforniaMon, Sep 21, 12:07 PM PDT · 14257 days ago · 13 km deep · 21 km away
35. 1.610 km NW of Parkfield, CaliforniaMon, Sep 21, 5:31 PM PDT · 14257 days ago · 7 km deep · 34 km away
36. 1.96 km W of Oak Shores, CaliforniaTue, Sep 22, 9:53 PM PDT · 14256 days ago · 5 km deep · 85 km away
37. 1.923 km NE of San Lucas, CaliforniaThu, Sep 24, 4:21 AM PDT · 14254 days ago · 7 km deep · 65 km away
38. 2.310 km NW of Coalinga, CaliforniaSun, Sep 27, 1:43 AM PDT · 14251 days ago · 6 km deep · 34 km away
39. 1.616 km N of Coalinga, CaliforniaSun, Sep 27, 12:32 PM PDT · 14251 days ago · 11 km deep · 37 km away
40. 1.614 km WNW of Coalinga, CaliforniaSun, Sep 27, 8:45 PM PDT · 14251 days ago · 6 km deep · 38 km away
41. 1.512 km NE of Shandon, CaliforniaTue, Sep 29, 4:48 AM PDT · 14249 days ago · 5 km deep · 32 km away
42. 4.822 km NE of San Ardo, CaliforniaThu, Oct 1, 7:49 AM PDT · 14247 days ago · 27 km deep · 53 km away
43. 1.55 km NNE of Coalinga, CaliforniaThu, Oct 1, 8:02 PM PDT · 14247 days ago · 13 km deep · 27 km away
44. 1.910 km WSW of Templeton, CaliforniaFri, Oct 2, 12:21 AM PDT · 14246 days ago · 5 km deep · 82 km away
45. 1.823 km NE of King City, CaliforniaFri, Oct 2, 1:21 PM PDT · 14246 days ago · 7 km deep · 79 km away
46. 2.423 km NE of Greenfield, CaliforniaFri, Oct 2, 2:31 PM PDT · 14246 days ago · 7 km deep · 95 km away
47. 2.2Central CaliforniaSat, Oct 3, 12:35 PM PDT · 14245 days ago · 23 km deep · 40 km away
48. 1.88 km NE of Coalinga, CaliforniaSun, Oct 4, 3:55 AM PDT · 14244 days ago · 10 km deep · 25 km away
49. 1.95 km NNE of Coalinga, CaliforniaSun, Oct 4, 1:52 PM PDT · 14244 days ago · 14 km deep · 25 km away
50. 1.78 km SE of Avenal, CaliforniaMon, Oct 5, 1:13 AM PDT · 14243 days ago · 10 km deep · 10 km away
51. 2.17 km NE of Coalinga, CaliforniaWed, Oct 7, 2:58 PM PDT · 14241 days ago · 9 km deep · 24 km away
52. 2.19 km ENE of Coalinga, CaliforniaWed, Oct 7, 8:22 PM PDT · 14241 days ago · 10 km deep · 19 km away
53. 1.614 km NNW of Coalinga, CaliforniaFri, Oct 9, 3:36 PM PDT · 14239 days ago · 10 km deep · 36 km away
54. 1.725 km NE of King City, CaliforniaFri, Oct 9, 8:03 PM PDT · 14239 days ago · 1 km deep · 85 km away
55. 1.73 km ESE of Avenal, CaliforniaSat, Oct 10, 2:26 AM PDT · 14238 days ago · 13 km deep · 6 km away
56. 2.13 km E of Avenal, CaliforniaSat, Oct 10, 2:54 AM PDT · 14238 days ago · 8 km deep · 5 km away
57. 2.12 km E of Avenal, CaliforniaSat, Oct 10, 6:16 PM PDT · 14238 days ago · 13 km deep · 5 km away
58. 1.715 km NNW of Coalinga, CaliforniaSat, Oct 10, 7:45 PM PDT · 14238 days ago · 8 km deep · 38 km away
59. 2.68 km S of Huron, CaliforniaSun, Oct 11, 12:51 AM PDT · 14237 days ago · 8 km deep · 13 km away
60. 1.713 km N of Cayucos, CaliforniaMon, Oct 12, 4:04 AM PDT · 14236 days ago · 4 km deep · 82 km away

The first 60 of 72.

Before

1. 2.62 km NW of Avenal, CaliforniaMon, Aug 24, 3:29 AM PDT · 14285 days ago · 15 km deep · 1 km away
2. 1.824 km NE of Greenfield, CaliforniaSat, Aug 22, 11:47 PM PDT · 14286 days ago · 6 km deep · 96 km away
3. 1.57 km NNE of Avenal, CaliforniaFri, Aug 21, 7:53 PM PDT · 14288 days ago · 8 km deep · 8 km away
4. 2.120 km SSW of Three Rocks, CaliforniaFri, Aug 21, 3:58 PM PDT · 14288 days ago · 9 km deep · 43 km away
5. 1.712 km E of Coalinga, CaliforniaThu, Aug 20, 9:18 PM PDT · 14289 days ago · 11 km deep · 14 km away
6. 2.06 km ENE of Coalinga, CaliforniaThu, Aug 20, 7:19 PM PDT · 14289 days ago · 7 km deep · 21 km away
7. 1.68 km NNW of Huron, CaliforniaTue, Aug 18, 3:43 PM PDT · 14291 days ago · 5 km deep · 29 km away
8. 1.824 km NE of Greenfield, CaliforniaTue, Aug 18, 1:37 PM PDT · 14291 days ago · 1 km deep · 95 km away
9. 2.122 km NE of San Lucas, CaliforniaMon, Aug 17, 6:42 PM PDT · 14292 days ago · 9 km deep · 67 km away
10. 1.65 km SSW of Huron, CaliforniaMon, Aug 17, 4:07 AM PDT · 14292 days ago · 5 km deep · 16 km away
11. 1.630 km ESE of Shandon, CaliforniaSun, Aug 16, 3:10 PM PDT · 14293 days ago · 10 km deep · 55 km away
12. 2.125 km NE of Greenfield, CaliforniaSun, Aug 16, 2:59 AM PDT · 14293 days ago · 9 km deep · 91 km away
13. 1.611 km SW of Huron, CaliforniaSat, Aug 15, 12:23 PM PDT · 14294 days ago · 11 km deep · 14 km away
14. 2.230 km ESE of Shandon, CaliforniaSat, Aug 15, 11:29 AM PDT · 14294 days ago · 8 km deep · 55 km away
15. 2.030 km ESE of Shandon, CaliforniaSat, Aug 15, 10:54 AM PDT · 14294 days ago · 8 km deep · 55 km away
16. 2.730 km ESE of Shandon, CaliforniaSat, Aug 15, 10:52 AM PDT · 14294 days ago · 7 km deep · 55 km away
17. 2.130 km ESE of Shandon, CaliforniaSat, Aug 15, 9:24 AM PDT · 14294 days ago · 10 km deep · 55 km away
18. 2.8Central CaliforniaSat, Aug 15, 9:04 AM PDT · 14294 days ago · 12 km deep · 55 km away
19. 2.311 km NNE of Coalinga, CaliforniaFri, Aug 14, 8:06 AM PDT · 14295 days ago · 9 km deep · 30 km away
20. 2.413 km NE of Coalinga, CaliforniaThu, Aug 13, 7:20 PM PDT · 14296 days ago · 8 km deep · 26 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc105045. Read Sat, Oct 3, 2026, 5:29 PM UTC.