M2.5 earthquake 137 km W of Ferndale, California

Magnitude

2.5 (md), micro

Local time

Wed, Sep 22, 1982, 4:49 PM PDT

UTC

1982-09-22 23:49:44 UTC

Depth

4.6 km (2.9 mi), shallow

Epicenter

40.437° N, 125.876° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 12.0 km horizontally, 17.7 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

313°, poorly surrounded by stations

Stations used

18

• Ferndale, CaliforniaPopulation 1,369. Forecast137 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast146 kmW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast351 kmNW

After

1. 2.179 km W of Ferndale, CaliforniaWed, Sep 22, 6:37 PM PDT · 16078 days ago · 7 km deep · 58 km away
2. 2.7167 km W of Ferndale, CaliforniaWed, Sep 22, 7:39 PM PDT · 16078 days ago · 5 km deep · 31 km away
3. 2.5138 km W of Ferndale, CaliforniaSat, Sep 25, 9:10 AM PDT · 16075 days ago · 5 km deep · 13 km away
4. 2.4123 km W of Ferndale, CaliforniaMon, Sep 27, 7:18 AM PDT · 16074 days ago · 5 km deep · 14 km away
5. 2.165 km WSW of Ferndale, CaliforniaMon, Oct 4, 8:44 PM PDT · 16066 days ago · 13 km deep · 74 km away
6. 1.738 km WSW of Ferndale, CaliforniaTue, Oct 5, 7:25 PM PDT · 16065 days ago · 26 km deep · 99 km away
7. 2.455 km WSW of Ferndale, CaliforniaMon, Oct 11, 2:20 AM PDT · 16060 days ago · 5 km deep · 89 km away
8. 3.368 km WSW of Ferndale, CaliforniaMon, Oct 11, 7:07 AM PDT · 16060 days ago · 1 km deep · 71 km away
9. 2.8127 km W of Ferndale, CaliforniaThu, Oct 14, 1:02 PM PDT · 16056 days ago · 5 km deep · 11 km away
10. 2.286 km WSW of Ferndale, CaliforniaMon, Oct 18, 6:10 AM PDT · 16053 days ago · 8 km deep · 55 km away
11. 1.855 km W of Ferndale, CaliforniaTue, Oct 19, 2:59 PM PDT · 16051 days ago · 7 km deep · 82 km away
12. 2.471 km WNW of Samoa, CaliforniaWed, Oct 20, 8:11 AM PDT · 16050 days ago · 5 km deep · 94 km away
13. 2.2117 km W of Ferndale, CaliforniaFri, Oct 22, 2:16 PM PDT · 16048 days ago · 5 km deep · 21 km away
14. 2.141 km WSW of Ferndale, CaliforniaWed, Nov 3, 7:46 AM PST · 16036 days ago · 22 km deep · 96 km away
15. 2.7101 km W of Ferndale, CaliforniaThu, Nov 11, 4:23 PM PST · 16028 days ago · 21 km deep · 36 km away
16. 2.9166 km W of Ferndale, CaliforniaMon, Nov 15, 9:19 PM PST · 16024 days ago · 5 km deep · 34 km away

Before

1. 2.551 km W of Ferndale, CaliforniaTue, Sep 21, 9:34 AM PDT · 16079 days ago · 31 km deep · 86 km away
2. 2.0off the coast of Northern CaliforniaSun, Sep 19, 11:00 PM PDT · 16081 days ago · 6 km deep · 72 km away
3. 2.299 km W of Ferndale, CaliforniaSun, Sep 19, 2:50 PM PDT · 16081 days ago · 8 km deep · 43 km away
4. 2.3114 km W of Ferndale, CaliforniaSun, Sep 19, 9:19 AM PDT · 16081 days ago · 11 km deep · 24 km away
5. 2.6121 km W of Ferndale, CaliforniaSat, Sep 18, 7:04 PM PDT · 16082 days ago · 19 km deep · 16 km away
6. 2.847 km WSW of Ferndale, CaliforniaSat, Sep 18, 6:24 AM PDT · 16083 days ago · 21 km deep · 95 km away
7. 2.046 km W of Ferndale, CaliforniaFri, Sep 17, 4:26 AM PDT · 16084 days ago · 19 km deep · 92 km away
8. 2.7134 km W of Ferndale, CaliforniaFri, Sep 17, 3:48 AM PDT · 16084 days ago · 5 km deep · 3 km away
9. 3.196 km W of Ferndale, CaliforniaThu, Sep 16, 4:07 AM PDT · 16085 days ago · 22 km deep · 42 km away
10. 2.556 km WSW of Ferndale, CaliforniaThu, Sep 9, 3:42 PM PDT · 16091 days ago · 5 km deep · 81 km away
11. 3.362 km WNW of Indianola, CaliforniaThu, Sep 9, 4:26 AM PDT · 16092 days ago · 7 km deep · 88 km away
12. 2.564 km WSW of Ferndale, CaliforniaTue, Sep 7, 2:27 AM PDT · 16094 days ago · 0 km deep · 75 km away
13. 2.3124 km W of Trinidad, CaliforniaMon, Sep 6, 3:53 AM PDT · 16095 days ago · 5 km deep · 76 km away
14. 3.346 km WSW of Ferndale, CaliforniaFri, Sep 3, 9:38 AM PDT · 16097 days ago · 18 km deep · 91 km away
15. 3.1102 km W of Ferndale, CaliforniaFri, Sep 3, 9:37 AM PDT · 16097 days ago · 5 km deep · 35 km away
16. 3.065 km WSW of Ferndale, CaliforniaFri, Sep 3, 1:54 AM PDT · 16098 days ago · 25 km deep · 72 km away
17. 2.254 km W of Ferndale, CaliforniaThu, Sep 2, 5:14 PM PDT · 16098 days ago · 34 km deep · 83 km away
18. 2.782 km W of Ferndale, CaliforniaSun, Aug 29, 5:13 PM PDT · 16102 days ago · 25 km deep · 62 km away
19. 3.680 km W of Ferndale, CaliforniaSun, Aug 29, 2:23 PM PDT · 16102 days ago · 1 km deep · 64 km away
20. 3.278 km WSW of Ferndale, CaliforniaSat, Aug 28, 7:18 PM PDT · 16103 days ago · 10 km deep · 60 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1079347. Read Wed, Sep 30, 2026, 2:26 AM UTC.