M1.8 earthquake 17km WSW of Olancha, CA

Magnitude

1.8 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Tue, Sep 22, 1987, 8:03 AM PDT

UTC

1987-09-22 15:03:16 UTC

Depth

10.8 km (6.7 mi), shallow

Epicenter

36.212° N, 118.175° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

226°, poorly surrounded by stations

Stations used

0

• Lone Pine, CaliforniaPopulation 2,035. Forecast45 kmSSW
• Porterville, CaliforniaPopulation 56,058. Forecast77 kmENE
• Visalia, CaliforniaPopulation 130,104. Forecast101 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast240 kmN

After

1. 1.815km S of Bodfish, CATue, Sep 22, 10:53 AM PDT · 14258 days ago · 3 km deep · 88 km away
2. 1.618km WSW of Olancha, CAWed, Sep 23, 2:07 AM PDT · 14257 days ago · 10 km deep · 1 km away
3. 1.618km WSW of Olancha, CAWed, Sep 23, 4:19 AM PDT · 14257 days ago · 9 km deep · 1 km away
4. 1.729km W of Olancha, CAWed, Sep 23, 5:41 AM PDT · 14257 days ago · 5 km deep · 13 km away
5. 1.518km WSW of Olancha, CAWed, Sep 23, 5:44 AM PDT · 14257 days ago · 11 km deep · 2 km away
6. 1.818km WSW of Olancha, CAWed, Sep 23, 7:06 PM PDT · 14256 days ago · 5 km deep · 1 km away
7. 2.419km SW of Olancha, CAThu, Sep 24, 6:42 AM PDT · 14256 days ago · 11 km deep · 3 km away
8. 1.519km WSW of Olancha, CAThu, Sep 24, 5:24 PM PDT · 14256 days ago · 12 km deep · 2 km away
9. 2.418km WSW of Olancha, CAFri, Sep 25, 12:26 AM PDT · 14255 days ago · 10 km deep · 1 km away
10. 1.633km NNE of Kernville, CAFri, Sep 25, 2:02 AM PDT · 14255 days ago · 2 km deep · 24 km away
11. 2.036km N of Kernville, CAFri, Sep 25, 3:45 AM PDT · 14255 days ago · 11 km deep · 25 km away
12. 2.335km N of Kernville, CAFri, Sep 25, 8:24 AM PDT · 14255 days ago · 8 km deep · 26 km away
13. 2.026km WSW of Olancha, CAFri, Sep 25, 5:03 PM PDT · 14255 days ago · 4 km deep · 10 km away
14. 2.418km WSW of Olancha, CAFri, Sep 25, 10:45 PM PDT · 14254 days ago · 9 km deep · 1 km away
15. 2.818km WSW of Olancha, CAFri, Sep 25, 11:37 PM PDT · 14254 days ago · 8 km deep · 1 km away
16. 2.118km SW of Olancha, CASat, Sep 26, 12:13 AM PDT · 14254 days ago · 8 km deep · 3 km away
17. 2.318km SW of Olancha, CASat, Sep 26, 12:55 AM PDT · 14254 days ago · 8 km deep · 3 km away
18. 2.218km WSW of Olancha, CASat, Sep 26, 4:27 AM PDT · 14254 days ago · 8 km deep · 2 km away
19. 1.818km WSW of Olancha, CASat, Sep 26, 7:26 AM PDT · 14254 days ago · 9 km deep · 1 km away
20. 2.518km SW of Olancha, CASat, Sep 26, 8:01 AM PDT · 14254 days ago · 5 km deep · 3 km away
21. 2.618km SW of Olancha, CASat, Sep 26, 8:49 AM PDT · 14254 days ago · 7 km deep · 3 km away
22. 1.928km W of Olancha, CASat, Sep 26, 2:43 PM PDT · 14254 days ago · 5 km deep · 12 km away
23. 2.120km ENE of Oildale, CASun, Sep 27, 5:00 AM PDT · 14253 days ago · 3 km deep · 99 km away
24. 2.318km WSW of Olancha, CASun, Sep 27, 6:31 AM PDT · 14253 days ago · 10 km deep · 1 km away
25. 2.819km WSW of Olancha, CASun, Sep 27, 9:06 AM PDT · 14253 days ago · 5 km deep · 2 km away
26. 1.615km ESE of Olancha, CASun, Sep 27, 10:59 AM PDT · 14253 days ago · 5 km deep · 28 km away
27. 2.818km WSW of Olancha, CASun, Sep 27, 2:10 PM PDT · 14253 days ago · 8 km deep · 2 km away
28. 2.518km SW of Olancha, CASun, Sep 27, 2:15 PM PDT · 14253 days ago · 4 km deep · 3 km away
29. 1.917km SW of Olancha, CASun, Sep 27, 3:12 PM PDT · 14253 days ago · 1 km deep · 3 km away
30. 1.817km SW of Olancha, CASun, Sep 27, 3:15 PM PDT · 14253 days ago · 1 km deep · 4 km away
31. 1.719km WSW of Olancha, CASun, Sep 27, 3:25 PM PDT · 14253 days ago · 5 km deep · 2 km away
32. 2.618km WSW of Olancha, CASun, Sep 27, 3:33 PM PDT · 14253 days ago · 9 km deep · 1 km away
33. 1.818km WSW of Olancha, CASun, Sep 27, 3:57 PM PDT · 14253 days ago · 10 km deep · 2 km away
34. 2.518km SW of Olancha, CASun, Sep 27, 4:13 PM PDT · 14253 days ago · 4 km deep · 3 km away
35. 2.826km WSW of Olancha, CASun, Sep 27, 4:54 PM PDT · 14253 days ago · 3 km deep · 11 km away
36. 1.618km SW of Olancha, CASun, Sep 27, 5:12 PM PDT · 14253 days ago · 0 km deep · 5 km away
37. 2.318km WSW of Olancha, CASun, Sep 27, 6:45 PM PDT · 14253 days ago · 8 km deep · 2 km away
38. 1.818km WSW of Olancha, CAMon, Sep 28, 2:49 AM PDT · 14252 days ago · 8 km deep · 2 km away
39. 1.915km NNE of Olancha, CAMon, Sep 28, 4:27 AM PDT · 14252 days ago · 11 km deep · 29 km away
40. 2.927km ENE of Coso Junction, CAMon, Sep 28, 9:58 AM PDT · 14252 days ago · 0 km deep · 48 km away
41. 2.619km SW of Olancha, CATue, Sep 29, 12:44 AM PDT · 14251 days ago · 4 km deep · 3 km away
42. 1.818km WSW of Olancha, CATue, Sep 29, 8:49 PM PDT · 14250 days ago · 8 km deep · 1 km away
43. 2.820km SE of Little Lake, CATue, Sep 29, 9:48 PM PDT · 14250 days ago · 5 km deep · 58 km away
44. 2.118km SW of Olancha, CAWed, Sep 30, 4:24 AM PDT · 14250 days ago · 6 km deep · 3 km away
45. 2.218km SW of Olancha, CAWed, Sep 30, 6:30 AM PDT · 14250 days ago · 8 km deep · 3 km away
46. 1.618km SW of Olancha, CAWed, Sep 30, 7:45 AM PDT · 14250 days ago · 7 km deep · 2 km away
47. 2.48km NW of Kernville, CAWed, Sep 30, 1:44 PM PDT · 14250 days ago · 11 km deep · 52 km away
48. 1.718km WSW of Olancha, CAWed, Sep 30, 6:21 PM PDT · 14250 days ago · 9 km deep · 1 km away
49. 1.517km WSW of Olancha, CAWed, Sep 30, 6:22 PM PDT · 14250 days ago · 8 km deep · 0 km away
50. 2.410km SE of Kernville, CAThu, Oct 1, 5:21 AM PDT · 14249 days ago · 4 km deep · 58 km away
51. 1.636km N of Kernville, CAThu, Oct 1, 5:23 PM PDT · 14249 days ago · 10 km deep · 27 km away
52. 1.818km WSW of Olancha, CAThu, Oct 1, 10:30 PM PDT · 14248 days ago · 8 km deep · 1 km away
53. 1.840km SW of Stovepipe Wells, CAFri, Oct 2, 1:30 PM PDT · 14248 days ago · 5 km deep · 64 km away
54. 1.618km SW of Olancha, CAFri, Oct 2, 5:23 PM PDT · 14248 days ago · 4 km deep · 3 km away
55. 1.927km WSW of Olancha, CAFri, Oct 2, 6:26 PM PDT · 14248 days ago · 4 km deep · 11 km away
56. 1.817km WSW of Olancha, CASat, Oct 3, 3:43 AM PDT · 14247 days ago · 4 km deep · 1 km away
57. 2.218km WSW of Olancha, CASat, Oct 3, 9:47 AM PDT · 14247 days ago · 12 km deep · 1 km away
58. 1.517km WSW of Olancha, CASat, Oct 3, 5:35 PM PDT · 14247 days ago · 4 km deep · 1 km away
59. 2.017km WSW of Olancha, CASun, Oct 4, 4:45 AM PDT · 14246 days ago · 10 km deep · 1 km away
60. 1.818km SW of Olancha, CASun, Oct 4, 4:33 PM PDT · 14246 days ago · 4 km deep · 3 km away

The first 60 of 139.

Before

1. 2.018km WSW of Olancha, CAMon, Sep 21, 10:26 PM PDT · 14258 days ago · 10 km deep · 1 km away
2. 2.414km E of Coso Junction, CAMon, Sep 21, 7:54 AM PDT · 14259 days ago · 0 km deep · 39 km away
3. 1.820km WSW of Olancha, CASun, Sep 20, 10:12 AM PDT · 14260 days ago · 14 km deep · 3 km away
4. 1.520km E of Coso Junction, CASun, Sep 20, 6:10 AM PDT · 14260 days ago · 1 km deep · 44 km away
5. 1.518km WSW of Olancha, CASun, Sep 20, 3:59 AM PDT · 14260 days ago · 7 km deep · 2 km away
6. 1.918km WSW of Olancha, CASun, Sep 20, 3:46 AM PDT · 14260 days ago · 10 km deep · 2 km away
7. 1.821km E of Coso Junction, CASat, Sep 19, 3:23 PM PDT · 14261 days ago · 0 km deep · 45 km away
8. 1.84km WNW of Olancha, CASat, Sep 19, 11:37 AM PDT · 14261 days ago · 5 km deep · 15 km away
9. 1.930km ENE of Coso Junction, CAFri, Sep 18, 9:55 AM PDT · 14262 days ago · 2 km deep · 49 km away
10. 1.818km WSW of Olancha, CAFri, Sep 18, 6:35 AM PDT · 14262 days ago · 9 km deep · 1 km away
11. 2.018km WSW of Olancha, CAThu, Sep 17, 5:34 PM PDT · 14263 days ago · 12 km deep · 2 km away
12. 1.918km WSW of Olancha, CATue, Sep 15, 11:11 PM PDT · 14264 days ago · 10 km deep · 1 km away
13. 1.918km WSW of Olancha, CATue, Sep 15, 9:19 PM PDT · 14264 days ago · 11 km deep · 1 km away
14. 2.118km WSW of Olancha, CATue, Sep 15, 2:30 PM PDT · 14265 days ago · 8 km deep · 2 km away
15. 1.918km WSW of Olancha, CATue, Sep 15, 3:41 AM PDT · 14265 days ago · 9 km deep · 2 km away
16. 1.917km WSW of Olancha, CAMon, Sep 14, 2:06 PM PDT · 14266 days ago · 7 km deep · 1 km away
17. 1.817km WSW of Olancha, CAMon, Sep 14, 9:11 AM PDT · 14266 days ago · 5 km deep · 1 km away
18. 1.718km WSW of Olancha, CAMon, Sep 14, 12:39 AM PDT · 14266 days ago · 5 km deep · 1 km away
19. 1.918km WSW of Olancha, CASun, Sep 13, 11:06 PM PDT · 14266 days ago · 9 km deep · 2 km away
20. 1.919km WSW of Olancha, CASun, Sep 13, 10:53 PM PDT · 14266 days ago · 5 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci623821. Read Mon, Oct 5, 2026, 1:25 PM UTC.