M1.8 earthquake 29 km NW of Leavenworth, Washington

Magnitude

1.8 (Md, duration), micro

Magnitude from

Pacific Northwest Seismic Network

Local time

Wed, Aug 7, 1985, 11:11 AM PDT

UTC

1985-08-07 18:11:43 UTC

Depth

-0.8 km (-0.5 mi), shallow

Epicenter

47.815° N, 120.893° W

Region

Washington

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 1.5 km in depth

Magnitude uncertainty

±0.13

Depth from

Operator assigned

Station coverage gap

138°

Stations used

12

• Leavenworth, WashingtonPopulation 2,002. Forecast30 kmNW
• Wenatchee, WashingtonPopulation 33,636. Forecast62 kmNW
• Everett, WashingtonPopulation 108,010. Forecast99 kmE
• Calgary, CanadaPopulation 1,306,784. Forecast609 kmWSW

After

1. 1.61 km N of Chelan Falls, WashingtonFri, Aug 9, 9:50 AM PDT · 15030 days ago · 0 km deep · 68 km away
2. 1.58 km SSE of Greenwater, WashingtonMon, Aug 12, 9:36 AM PDT · 15027 days ago · 0 km deep · 96 km away
3. 1.61 km NW of Lake Roesiger, WashingtonSat, Aug 17, 3:53 PM PDT · 15022 days ago · 12 km deep · 80 km away
4. 1.77 km N of Methow, WashingtonThu, Aug 22, 2:40 AM PDT · 15017 days ago · -1 km deep · 80 km away
5. 2.1WashingtonTue, Aug 27, 8:53 PM PDT · 15011 days ago · 2 km deep · 48 km away
6. 1.61 km N of Chelan Falls, WashingtonSat, Sep 7, 5:35 PM PDT · 15001 days ago · 0 km deep · 68 km away
7. 1.822 km E of Skykomish, WashingtonSun, Sep 8, 5:57 AM PDT · 15000 days ago · 0 km deep · 20 km away
8. 1.530 km NW of Leavenworth, WashingtonTue, Sep 10, 2:31 PM PDT · 14998 days ago · -1 km deep · 0 km away
9. 1.83 km E of Manson, WashingtonSat, Sep 14, 10:27 PM PDT · 14993 days ago · 0 km deep · 59 km away
10. 1.85 km E of Hobart, WashingtonMon, Sep 16, 2:42 PM PDT · 14992 days ago · 10 km deep · 87 km away
11. 2.10 km E of Entiat, WashingtonFri, Sep 20, 2:14 AM PDT · 14988 days ago · 0 km deep · 54 km away
12. 2.03 km SSE of Issaquah, WashingtonFri, Sep 20, 12:37 PM PDT · 14988 days ago · -1 km deep · 92 km away
13. 2.63 km NW of Redmond, WashingtonMon, Sep 23, 11:29 AM PDT · 14985 days ago · 8 km deep · 94 km away
14. 1.53 km S of Monroe, WashingtonWed, Sep 25, 9:16 AM PDT · 14983 days ago · -1 km deep · 80 km away
15. 2.23 km S of Issaquah, WashingtonWed, Sep 25, 12:28 PM PDT · 14983 days ago · 0 km deep · 92 km away
16. 1.516 km SE of Darrington, WashingtonWed, Sep 25, 5:15 PM PDT · 14983 days ago · 9 km deep · 55 km away
17. 1.61 km NNW of Chelan Falls, WashingtonThu, Sep 26, 3:44 PM PDT · 14982 days ago · 0 km deep · 67 km away
18. 1.83 km SSW of Swede Heaven, WashingtonSat, Sep 28, 5:30 PM PDT · 14980 days ago · 2 km deep · 81 km away
19. 1.8WashingtonMon, Sep 30, 9:45 AM PDT · 14978 days ago · 4 km deep · 58 km away
20. 1.61 km NNW of Chelan Falls, WashingtonMon, Sep 30, 4:25 PM PDT · 14978 days ago · -1 km deep · 67 km away

Before

1. 1.515 km E of Greenwater, WashingtonTue, Aug 6, 10:00 AM PDT · 15033 days ago · -1 km deep · 85 km away
2. 1.54 km SW of Swede Heaven, WashingtonTue, Aug 6, 7:28 AM PDT · 15033 days ago · 4 km deep · 81 km away
3. 1.64 km WSW of Monroe, WashingtonFri, Aug 2, 12:02 PM PDT · 15037 days ago · -1 km deep · 85 km away
4. 1.53 km SW of Mirrormont, WashingtonThu, Aug 1, 11:30 PM PDT · 15037 days ago · 21 km deep · 95 km away
5. 2.33 km SW of Swede Heaven, WashingtonWed, Jul 31, 11:58 PM PDT · 15038 days ago · 2 km deep · 81 km away
6. 1.84 km SSW of Swede Heaven, WashingtonWed, Jul 31, 11:57 PM PDT · 15038 days ago · 2 km deep · 80 km away
7. 1.74 km SSW of Swede Heaven, WashingtonTue, Jul 30, 2:58 PM PDT · 15040 days ago · 0 km deep · 80 km away
8. 2.35 km E of Entiat, WashingtonMon, Jul 29, 9:07 PM PDT · 15040 days ago · 3 km deep · 58 km away
9. 2.03 km E of Granite Falls, WashingtonMon, Jul 29, 2:53 PM PDT · 15041 days ago · -1 km deep · 82 km away
10. 3.23 km SW of Swede Heaven, WashingtonMon, Jul 29, 2:05 PM PDT · 15041 days ago · 2 km deep · 81 km away
11. 2.110 km WNW of Entiat, WashingtonSun, Jul 28, 12:45 PM PDT · 15042 days ago · 6 km deep · 43 km away
12. 1.84 km WSW of Wilderness Rim, WashingtonSat, Jul 27, 4:13 AM PDT · 15043 days ago · 17 km deep · 82 km away
13. 1.529 km NW of Leavenworth, WashingtonThu, Jul 25, 10:42 AM PDT · 15045 days ago · 0 km deep · 1 km away
14. 1.5WashingtonThu, Jul 25, 8:43 AM PDT · 15045 days ago · 0 km deep · 67 km away
15. 1.58 km WSW of Entiat, WashingtonSat, Jul 20, 1:42 PM PDT · 15050 days ago · -1 km deep · 48 km away
16. 1.721 km NW of Granite Falls, WashingtonSat, Jul 20, 5:22 AM PDT · 15050 days ago · 0 km deep · 44 km away
17. 1.52 km SW of Entiat, WashingtonMon, Jul 15, 7:48 PM PDT · 15055 days ago · 0 km deep · 52 km away

From the USGS Earthquake Hazards Program and its partner networks, event uw10193083. Read Sat, Oct 3, 2026, 3:22 PM UTC.