M2.5 earthquake Central California

Magnitude

2.5 (md), micro

Local time

Wed, Jun 21, 1978, 2:33 PM PDT

UTC

1978-06-21 21:33:29 UTC

Depth

9.3 km (5.8 mi), shallow

Epicenter

36.006° N, 120.252° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.6 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

260°, poorly surrounded by stations

Stations used

11

• Avenal, CaliforniaPopulation 13,301. Forecast11 kmW
• Fresno, CaliforniaPopulation 542,107. Forecast93 kmSSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast284 kmNW

After

1. 1.74 km NW of Parkfield, CaliforniaFri, Jun 23, 8:52 PM PDT · 17629 days ago · 5 km deep · 22 km away
2. 1.5Central CaliforniaSat, Jun 24, 4:16 PM PDT · 17628 days ago · 4 km deep · 79 km away
3. 1.813 km SSE of Parkfield, CaliforniaSun, Jun 25, 1:01 AM PDT · 17628 days ago · 9 km deep · 25 km away
4. 2.523 km ENE of Soledad, CaliforniaSun, Jun 25, 5:04 PM PDT · 17627 days ago · 4 km deep · 92 km away
5. 1.723 km NE of King City, CaliforniaWed, Jun 28, 11:06 AM PDT · 17624 days ago · 4 km deep · 72 km away
6. 2.322 km NE of Soledad, CaliforniaFri, Jun 30, 12:29 AM PDT · 17623 days ago · 3 km deep · 98 km away
7. 2.022 km NE of Soledad, CaliforniaFri, Jun 30, 2:19 PM PDT · 17622 days ago · 2 km deep · 98 km away
8. 2.36 km N of Avenal, CaliforniaSun, Jul 2, 1:00 PM PDT · 17620 days ago · 6 km deep · 13 km away
9. 1.513 km NW of Parkfield, CaliforniaThu, Jul 6, 10:40 PM PDT · 17616 days ago · 5 km deep · 26 km away
10. 2.013 km NW of Parkfield, CaliforniaSat, Jul 8, 10:18 PM PDT · 17614 days ago · 4 km deep · 26 km away
11. 2.46 km SW of West Park, CaliforniaThu, Jul 13, 10:37 AM PDT · 17609 days ago · 12 km deep · 80 km away
12. 1.822 km NE of San Lucas, CaliforniaThu, Jul 20, 12:29 AM PDT · 17603 days ago · 7 km deep · 60 km away
13. 1.622 km ENE of Soledad, CaliforniaThu, Jul 20, 6:37 PM PDT · 17602 days ago · 4 km deep · 94 km away
14. 2.318km SSE of Alpaugh, CAFri, Jul 21, 1:51 AM PDT · 17602 days ago · 6 km deep · 79 km away
15. 2.120 km NW of Parkfield, CaliforniaFri, Jul 21, 5:36 AM PDT · 17601 days ago · 8 km deep · 31 km away
16. 1.616 km NW of Parkfield, CaliforniaFri, Jul 21, 6:29 AM PDT · 17601 days ago · 4 km deep · 28 km away
17. 3.29 km NW of Parkfield, CaliforniaSun, Jul 23, 7:38 AM PDT · 17599 days ago · 7 km deep · 24 km away
18. 1.99 km NW of Parkfield, CaliforniaSun, Jul 23, 8:34 AM PDT · 17599 days ago · 7 km deep · 24 km away
19. 1.711 km NNE of Cayucos, CaliforniaSun, Jul 23, 8:37 PM PDT · 17599 days ago · 5 km deep · 75 km away
20. 2.340 km SSW of South Dos Palos, CaliforniaThu, Jul 27, 3:38 PM PDT · 17595 days ago · 4 km deep · 89 km away
21. 1.719 km NW of Parkfield, CaliforniaFri, Jul 28, 2:15 AM PDT · 17595 days ago · 5 km deep · 30 km away
22. 2.024 km NE of Greenfield, CaliforniaFri, Jul 28, 4:38 PM PDT · 17594 days ago · 4 km deep · 88 km away
23. 2.217 km WSW of Lockwood, CaliforniaSat, Jul 29, 4:43 PM PDT · 17593 days ago · 12 km deep · 92 km away
24. 2.025 km NE of Soledad, CaliforniaMon, Jul 31, 6:08 PM PDT · 17591 days ago · 12 km deep · 97 km away
25. 1.98 km WSW of San Miguel, CaliforniaTue, Aug 1, 5:48 AM PDT · 17590 days ago · 5 km deep · 57 km away
26. 2.818 km NW of Parkfield, CaliforniaWed, Aug 2, 7:59 AM PDT · 17589 days ago · 5 km deep · 29 km away
27. 1.621 km NW of Parkfield, CaliforniaThu, Aug 3, 11:51 PM PDT · 17588 days ago · 4 km deep · 31 km away
28. 1.821 km NW of Parkfield, CaliforniaSat, Aug 5, 2:26 AM PDT · 17587 days ago · 2 km deep · 31 km away
29. 1.64 km NE of Bradley, CaliforniaSat, Aug 5, 3:43 AM PDT · 17586 days ago · 10 km deep · 48 km away
30. 2.330 km NE of Soledad, CaliforniaSun, Aug 6, 5:11 PM PDT · 17585 days ago · 6 km deep · 97 km away
31. 1.62 km SSE of Parkfield, CaliforniaMon, Aug 7, 12:22 PM PDT · 17584 days ago · 10 km deep · 21 km away
32. 1.821 km NW of Parkfield, CaliforniaFri, Aug 11, 5:23 PM PDT · 17580 days ago · 4 km deep · 31 km away
33. 1.929 km ENE of Soledad, CaliforniaSat, Aug 12, 12:46 AM PDT · 17580 days ago · 6 km deep · 92 km away
34. 1.929 km ENE of Soledad, CaliforniaMon, Aug 14, 3:30 AM PDT · 17577 days ago · 6 km deep · 94 km away
35. 1.523 km NNE of San Lucas, CaliforniaMon, Aug 14, 7:59 PM PDT · 17577 days ago · 4 km deep · 67 km away
36. 2.010 km SSW of Avenal, CaliforniaMon, Aug 14, 11:15 PM PDT · 17577 days ago · 14 km deep · 13 km away
37. 2.18 km SSW of Avenal, CaliforniaMon, Aug 14, 11:26 PM PDT · 17577 days ago · 14 km deep · 13 km away
38. 2.3Central CaliforniaWed, Aug 16, 9:10 PM PDT · 17575 days ago · 2 km deep · 88 km away
39. 2.323 km NNE of San Lucas, CaliforniaWed, Aug 16, 10:43 PM PDT · 17575 days ago · 6 km deep · 65 km away
40. 2.330 km SSW of South Dos Palos, CaliforniaThu, Aug 17, 12:04 AM PDT · 17575 days ago · 6 km deep · 96 km away
41. 2.911km SSW of Lemoore Station, CAFri, Aug 18, 7:49 AM PDT · 17573 days ago · 6 km deep · 33 km away
42. 1.922 km NE of San Lucas, CaliforniaSat, Aug 19, 3:33 PM PDT · 17572 days ago · 6 km deep · 62 km away
43. 2.09 km SSW of Avenal, CaliforniaSun, Aug 20, 12:34 PM PDT · 17571 days ago · 14 km deep · 13 km away

Before

1. 2.02 km SE of San Ardo, CaliforniaSun, Jun 18, 12:19 AM PDT · 17635 days ago · 13 km deep · 57 km away
2. 2.024 km ENE of Greenfield, CaliforniaFri, Jun 16, 6:51 PM PDT · 17636 days ago · 6 km deep · 83 km away
3. 2.233 km ENE of Soledad, CaliforniaThu, Jun 15, 1:53 PM PDT · 17637 days ago · 17 km deep · 89 km away
4. 2.124 km ENE of Greenfield, CaliforniaSun, Jun 11, 5:36 PM PDT · 17641 days ago · 6 km deep · 80 km away
5. 2.423 km NW of Parkfield, CaliforniaSat, Jun 10, 6:56 AM PDT · 17642 days ago · 6 km deep · 33 km away
6. 2.423 km NW of Parkfield, CaliforniaSat, Jun 10, 6:44 AM PDT · 17642 days ago · 5 km deep · 33 km away
7. 1.821 km NE of Soledad, CaliforniaFri, Jun 9, 11:44 AM PDT · 17643 days ago · 7 km deep · 100 km away
8. 2.46km W of Buttonwillow, CAFri, Jun 9, 1:57 AM PDT · 17644 days ago · 24 km deep · 94 km away
9. 2.124 km ENE of Soledad, CaliforniaThu, Jun 8, 8:38 PM PDT · 17644 days ago · 3 km deep · 92 km away
10. 1.622 km NE of San Lucas, CaliforniaWed, Jun 7, 1:57 AM PDT · 17646 days ago · 6 km deep · 64 km away
11. 1.616 km NW of Parkfield, CaliforniaMon, Jun 5, 4:20 PM PDT · 17647 days ago · 4 km deep · 28 km away
12. 1.621 km NW of Parkfield, CaliforniaSun, Jun 4, 12:10 PM PDT · 17648 days ago · 2 km deep · 32 km away
13. 2.731 km ENE of San Lucas, CaliforniaSat, Jun 3, 10:14 PM PDT · 17649 days ago · 9 km deep · 50 km away
14. 2.027 km NE of Soledad, CaliforniaSat, Jun 3, 5:08 AM PDT · 17649 days ago · 9 km deep · 97 km away
15. 2.523 km NE of King City, CaliforniaFri, Jun 2, 5:10 PM PDT · 17650 days ago · 8 km deep · 76 km away
16. 1.924 km NE of Greenfield, CaliforniaFri, Jun 2, 9:40 AM PDT · 17650 days ago · 5 km deep · 90 km away
17. 1.86 km N of Greenfield, CaliforniaWed, May 31, 10:26 AM PDT · 17652 days ago · 3 km deep · 98 km away
18. 1.910 km W of Templeton, CaliforniaTue, May 30, 6:54 PM PDT · 17653 days ago · 3 km deep · 72 km away
19. 2.6Central CaliforniaSun, May 28, 9:26 PM PDT · 17655 days ago · 9 km deep · 97 km away
20. 2.435 km W of Three Rocks, CaliforniaSat, May 27, 8:08 AM PDT · 17656 days ago · 3 km deep · 77 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1040740 (also filed as ci3340142). Read Mon, Sep 28, 2026, 9:29 PM UTC.