M1.6 earthquake 4 km WSW of Monroe, Washington

Magnitude

1.6 (md), micro

Local time

Fri, Aug 2, 1985, 12:02 PM PDT

UTC

1985-08-02 19:02:23 UTC

Depth

-0.6 km (-0.4 mi), shallow

Epicenter

47.836° N, 122.029° W

Region

Washington

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.2 km in depth

Magnitude uncertainty

±0.10

Depth from

Operator assigned

Station coverage gap

103°

Stations used

8

• Monroe, WashingtonPopulation 18,090. Forecast5 kmWSW
• Everett, WashingtonPopulation 108,010. Forecast20 kmSE
• Calgary, CanadaPopulation 1,306,784. Forecast676 kmWSW

After

1. 2.013 km E of Wilkeson, WashingtonSat, Aug 3, 5:21 PM PDT · 15024 days ago · 10 km deep · 84 km away
2. 1.54 km SW of Swede Heaven, WashingtonTue, Aug 6, 7:28 AM PDT · 15022 days ago · 4 km deep · 50 km away
3. 1.515 km E of Greenwater, WashingtonTue, Aug 6, 10:00 AM PDT · 15021 days ago · -1 km deep · 87 km away
4. 1.829 km NW of Leavenworth, WashingtonWed, Aug 7, 11:11 AM PDT · 15020 days ago · -1 km deep · 85 km away
5. 1.6Puget Sound region, WashingtonThu, Aug 8, 10:45 AM PDT · 15019 days ago · 0 km deep · 92 km away
6. 1.58 km SSE of Greenwater, WashingtonMon, Aug 12, 9:36 AM PDT · 15015 days ago · 0 km deep · 89 km away
7. 1.72 km SSE of Crocker, WashingtonWed, Aug 14, 1:13 PM PDT · 15013 days ago · 0 km deep · 86 km away
8. 1.61 km NW of Lake Roesiger, WashingtonSat, Aug 17, 3:53 PM PDT · 15010 days ago · 12 km deep · 19 km away
9. 1.90 km ENE of Acme, WashingtonSun, Aug 18, 6:18 PM PDT · 15009 days ago · 15 km deep · 99 km away
10. 1.52 km SE of Acme, WashingtonSun, Aug 18, 6:21 PM PDT · 15009 days ago · -1 km deep · 97 km away
11. 2.52 km ENE of Acme, WashingtonSun, Aug 18, 8:42 PM PDT · 15009 days ago · 15 km deep · 100 km away
12. 1.60 km ENE of Acme, WashingtonMon, Aug 19, 3:42 AM PDT · 15009 days ago · 6 km deep · 99 km away
13. 1.612 km ESE of Enumclaw, WashingtonMon, Aug 19, 1:43 PM PDT · 15008 days ago · 1 km deep · 77 km away
14. 1.52 km ENE of Acme, WashingtonTue, Aug 20, 12:12 PM PDT · 15007 days ago · 11 km deep · 100 km away
15. 1.83 km NNW of Seabeck, WashingtonThu, Aug 22, 7:18 AM PDT · 15006 days ago · 50 km deep · 64 km away
16. 1.54 km N of Seattle, WashingtonFri, Aug 23, 8:31 PM PDT · 15004 days ago · 21 km deep · 31 km away
17. 1.63 km SE of Acme, WashingtonSun, Aug 25, 5:57 AM PDT · 15003 days ago · -1 km deep · 97 km away
18. 1.55 km SSE of Edison, WashingtonMon, Aug 26, 8:20 AM PDT · 15001 days ago · 15 km deep · 81 km away
19. 1.51 km ESE of Keyport, WashingtonFri, Aug 30, 10:40 PM PDT · 14997 days ago · 23 km deep · 46 km away
20. 1.81 km NNE of Port Townsend, WashingtonSat, Aug 31, 12:13 AM PDT · 14997 days ago · 20 km deep · 63 km away
21. 2.34 km ENE of Acme, WashingtonMon, Sep 2, 3:59 AM PDT · 14995 days ago · 17 km deep · 100 km away
22. 2.30 km ENE of Acme, WashingtonMon, Sep 2, 10:33 AM PDT · 14994 days ago · -1 km deep · 99 km away
23. 2.13 km ENE of Acme, WashingtonMon, Sep 2, 10:38 AM PDT · 14994 days ago · 12 km deep · 99 km away
24. 2.32 km ENE of Keyport, WashingtonMon, Sep 2, 7:52 PM PDT · 14994 days ago · 19 km deep · 44 km away
25. 1.822 km E of Skykomish, WashingtonSun, Sep 8, 5:57 AM PDT · 14989 days ago · 0 km deep · 74 km away
26. 1.65 km NNW of Maplewood, WashingtonMon, Sep 9, 10:46 AM PDT · 14987 days ago · 17 km deep · 60 km away
27. 2.52 km SW of Des Moines, WashingtonMon, Sep 9, 7:05 PM PDT · 14987 days ago · 14 km deep · 55 km away
28. 1.52 km SW of Des Moines, WashingtonTue, Sep 10, 6:32 AM PDT · 14987 days ago · 15 km deep · 55 km away
29. 1.530 km NW of Leavenworth, WashingtonTue, Sep 10, 2:31 PM PDT · 14986 days ago · -1 km deep · 85 km away
30. 2.37 km SSE of Carbonado, WashingtonWed, Sep 11, 9:45 AM PDT · 14985 days ago · 14 km deep · 91 km away
31. 1.812 km W of Greenwater, WashingtonFri, Sep 13, 6:23 AM PDT · 14984 days ago · 14 km deep · 76 km away
32. 3.04 km WSW of Des Moines, WashingtonFri, Sep 13, 11:24 PM PDT · 14983 days ago · 19 km deep · 56 km away
33. 1.85 km E of Hobart, WashingtonMon, Sep 16, 2:42 PM PDT · 14980 days ago · 10 km deep · 46 km away
34. 2.21 km SSW of Mount Vernon, WashingtonTue, Sep 17, 12:00 PM PDT · 14979 days ago · 16 km deep · 68 km away
35. 1.51 km NNW of Freeland, WashingtonThu, Sep 19, 8:08 PM PDT · 14977 days ago · 18 km deep · 43 km away
36. 2.03 km SSE of Issaquah, WashingtonFri, Sep 20, 12:37 PM PDT · 14976 days ago · -1 km deep · 38 km away
37. 2.63 km NW of Redmond, WashingtonMon, Sep 23, 11:29 AM PDT · 14973 days ago · 8 km deep · 18 km away
38. 1.53 km S of Monroe, WashingtonWed, Sep 25, 9:16 AM PDT · 14971 days ago · -1 km deep · 5 km away
39. 2.23 km S of Issaquah, WashingtonWed, Sep 25, 12:28 PM PDT · 14971 days ago · 0 km deep · 38 km away
40. 1.516 km SE of Darrington, WashingtonWed, Sep 25, 5:15 PM PDT · 14971 days ago · 9 km deep · 58 km away
41. 1.82 km WNW of Navy Yard City, WashingtonThu, Sep 26, 7:45 AM PDT · 14970 days ago · 13 km deep · 58 km away
42. 2.43 km NW of Burien, WashingtonSat, Sep 28, 2:49 AM PDT · 14969 days ago · 23 km deep · 47 km away
43. 2.02 km NW of Burien, WashingtonSat, Sep 28, 2:55 AM PDT · 14969 days ago · 22 km deep · 47 km away
44. 1.6WashingtonSat, Sep 28, 12:03 PM PDT · 14968 days ago · 27 km deep · 90 km away
45. 1.83 km SSW of Swede Heaven, WashingtonSat, Sep 28, 5:30 PM PDT · 14968 days ago · 2 km deep · 51 km away
46. 2.117 km ESE of Carbonado, WashingtonMon, Sep 30, 9:47 AM PDT · 14966 days ago · 16 km deep · 94 km away

Before

1. 1.53 km SW of Mirrormont, WashingtonThu, Aug 1, 11:30 PM PDT · 15026 days ago · 21 km deep · 45 km away
2. 1.97 km SSE of Carbonado, WashingtonThu, Aug 1, 11:32 AM PDT · 15026 days ago · 15 km deep · 91 km away
3. 2.33 km SW of Swede Heaven, WashingtonWed, Jul 31, 11:58 PM PDT · 15027 days ago · 2 km deep · 51 km away
4. 1.84 km SSW of Swede Heaven, WashingtonWed, Jul 31, 11:57 PM PDT · 15027 days ago · 2 km deep · 50 km away
5. 1.74 km SSW of Swede Heaven, WashingtonTue, Jul 30, 2:58 PM PDT · 15028 days ago · 0 km deep · 51 km away
6. 2.03 km E of Granite Falls, WashingtonMon, Jul 29, 2:53 PM PDT · 15029 days ago · -1 km deep · 29 km away
7. 3.23 km SW of Swede Heaven, WashingtonMon, Jul 29, 2:05 PM PDT · 15029 days ago · 2 km deep · 51 km away
8. 1.84 km WSW of Wilderness Rim, WashingtonSat, Jul 27, 4:13 AM PDT · 15032 days ago · 17 km deep · 47 km away
9. 1.529 km NW of Leavenworth, WashingtonThu, Jul 25, 10:42 AM PDT · 15033 days ago · 0 km deep · 85 km away
10. 2.17 km NE of Hoodsport, WashingtonWed, Jul 24, 1:23 PM PDT · 15034 days ago · 10 km deep · 89 km away
11. 2.56 km NE of Hoodsport, WashingtonTue, Jul 23, 9:33 AM PDT · 15035 days ago · 6 km deep · 90 km away
12. 2.27 km NNE of Hoodsport, WashingtonTue, Jul 23, 2:53 AM PDT · 15036 days ago · 8 km deep · 90 km away
13. 1.53 km N of Bryant, WashingtonFri, Jul 19, 1:04 PM PDT · 15039 days ago · 14 km deep · 49 km away
14. 1.54 km SSE of Lake McMurray, WashingtonTue, Jul 16, 4:29 PM PDT · 15042 days ago · 13 km deep · 50 km away
15. 1.84 km WSW of Gorst, WashingtonMon, Jul 15, 1:26 PM PDT · 15043 days ago · 15 km deep · 66 km away
16. 2.03 km N of Bryant, WashingtonSun, Jul 14, 3:23 PM PDT · 15044 days ago · 15 km deep · 49 km away
17. 1.94 km ENE of Southworth, WashingtonFri, Jul 12, 5:28 AM PDT · 15047 days ago · 47 km deep · 47 km away
18. 1.51 km NE of Kingston, WashingtonFri, Jul 12, 1:55 AM PDT · 15047 days ago · 21 km deep · 34 km away
19. 3.10 km NE of Inglewood-Finn Hill, WashingtonSat, Jul 6, 4:46 PM PDT · 15052 days ago · 18 km deep · 19 km away
20. 2.07 km ENE of Snoqualmie, WashingtonThu, Jul 4, 7:26 AM PDT · 15055 days ago · 8 km deep · 37 km away

From the USGS Earthquake Hazards Program and its partner networks, event uw10192053. Read Tue, Sep 22, 2026, 2:09 AM UTC.