M1.5 earthquake 1 km N of Fall City, Washington

Magnitude

1.5 (md), micro

Local time

Mon, Jul 30, 1984, 3:29 AM PDT

UTC

1984-07-30 10:29:39 UTC

Depth

-0.4 km (-0.2 mi), shallow

Epicenter

47.584° N, 121.890° W

Region

Washington

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.10

Depth from

From location

Station coverage gap

190°, poorly surrounded by stations

Stations used

4

• Fall City, WashingtonPopulation 1,993. Forecast2 kmN
• Snoqualmie, WashingtonPopulation 13,169. Forecast8 kmNW
• Bellevue, WashingtonPopulation 139,820. Forecast23 kmE
• Calgary, CanadaPopulation 1,306,784. Forecast684 kmWSW

After

1. 2.24 km WNW of Fall City, WashingtonMon, Jul 30, 5:47 AM PDT · 15402 days ago · -1 km deep · 4 km away
2. 2.02 km SSW of Machias, WashingtonThu, Aug 2, 6:29 AM PDT · 15399 days ago · 11 km deep · 44 km away
3. 1.74 km ENE of Granite Falls, WashingtonThu, Aug 2, 12:05 PM PDT · 15399 days ago · -1 km deep · 57 km away
4. 1.85 km WSW of Mount Vernon, WashingtonFri, Aug 3, 8:12 PM PDT · 15398 days ago · 6 km deep · 99 km away
5. 1.65 km SW of Mount Vernon, WashingtonMon, Aug 6, 2:03 AM PDT · 15395 days ago · 7 km deep · 97 km away
6. 2.03 km NNW of White Center, WashingtonTue, Aug 7, 7:59 AM PDT · 15394 days ago · 8 km deep · 36 km away
7. 1.92 km NW of Lakeland South, WashingtonTue, Aug 7, 9:50 PM PDT · 15393 days ago · 9 km deep · 45 km away
8. 1.8Puget Sound region, WashingtonSat, Aug 11, 6:22 AM PDT · 15390 days ago · 18 km deep · 38 km away
9. 1.51 km WNW of Redmond, WashingtonSun, Aug 12, 2:52 AM PDT · 15389 days ago · 23 km deep · 21 km away
10. 2.28 km W of Brinnon, WashingtonSun, Aug 12, 4:54 AM PDT · 15389 days ago · 46 km deep · 85 km away
11. 1.75 km NW of Dash Point, WashingtonMon, Aug 13, 9:16 PM PDT · 15388 days ago · 8 km deep · 51 km away
12. 1.54 km W of Fall City, WashingtonTue, Aug 14, 12:18 AM PDT · 15387 days ago · 6 km deep · 4 km away
13. 1.57 km SW of Camano, WashingtonWed, Aug 15, 6:19 PM PDT · 15386 days ago · 28 km deep · 81 km away
14. 1.52 km NW of Kingston, WashingtonWed, Aug 15, 6:52 PM PDT · 15386 days ago · 52 km deep · 53 km away
15. 1.732 km NNW of Leavenworth, WashingtonWed, Aug 15, 10:45 PM PDT · 15385 days ago · 8 km deep · 89 km away
16. 1.72 km SW of Wilderness Rim, WashingtonSat, Aug 18, 7:49 PM PDT · 15383 days ago · 19 km deep · 18 km away
17. 1.811 km ESE of Black Diamond, WashingtonSun, Aug 19, 5:57 AM PDT · 15382 days ago · 12 km deep · 36 km away
18. 1.94 km WSW of Monroe, WashingtonTue, Aug 21, 5:07 PM PDT · 15380 days ago · -1 km deep · 31 km away
19. 1.53 km SW of Wilderness Rim, WashingtonTue, Aug 21, 11:12 PM PDT · 15379 days ago · 17 km deep · 19 km away
20. 1.65 km W of Burley, WashingtonWed, Aug 22, 4:13 AM PDT · 15379 days ago · 22 km deep · 64 km away
21. 3.022 km WNW of Leavenworth, WashingtonThu, Aug 23, 9:43 PM PDT · 15377 days ago · 0 km deep · 70 km away
22. 1.93 km SSW of Vashon, WashingtonSat, Aug 25, 3:55 PM PDT · 15376 days ago · 19 km deep · 48 km away
23. 1.78 km NNW of Belfair, WashingtonSat, Aug 25, 5:43 PM PDT · 15376 days ago · 18 km deep · 73 km away
24. 1.56 km ENE of Allyn, WashingtonThu, Aug 30, 5:54 PM PDT · 15371 days ago · 8 km deep · 67 km away
25. 1.59 km ESE of Verlot, WashingtonTue, Sep 4, 10:35 AM PDT · 15366 days ago · 1 km deep · 57 km away
26. 2.21 km NW of White Center, WashingtonTue, Sep 4, 3:41 PM PDT · 15366 days ago · 22 km deep · 37 km away
27. 1.74 km NE of Woods Creek, WashingtonTue, Sep 4, 4:51 PM PDT · 15366 days ago · -1 km deep · 36 km away
28. 1.812 km WNW of Greenwater, WashingtonTue, Sep 4, 6:52 PM PDT · 15366 days ago · 16 km deep · 43 km away
29. 2.22 km SW of Roosevelt, WashingtonWed, Sep 5, 8:48 AM PDT · 15365 days ago · 17 km deep · 34 km away
30. 1.71 km N of Lake Ketchum, WashingtonThu, Sep 6, 11:01 AM PDT · 15364 days ago · 15 km deep · 86 km away
31. 1.93 km WNW of Bryant, WashingtonMon, Sep 10, 5:30 PM PDT · 15360 days ago · 19 km deep · 78 km away
32. 1.94 km ESE of Carbonado, WashingtonThu, Sep 13, 3:04 AM PDT · 15357 days ago · 1 km deep · 58 km away
33. 2.17 km E of Kapowsin, WashingtonMon, Sep 17, 6:51 AM PDT · 15353 days ago · 19 km deep · 69 km away
34. 3.06 km SW of Camano, WashingtonTue, Sep 18, 9:54 AM PDT · 15352 days ago · 2 km deep · 81 km away
35. 1.72 km E of Sammamish, WashingtonTue, Sep 18, 10:27 AM PDT · 15352 days ago · 11 km deep · 14 km away
36. 1.81 km ESE of Clyde Hill, WashingtonTue, Sep 18, 4:16 PM PDT · 15352 days ago · 0 km deep · 23 km away
37. 2.70 km NE of Boulevard Park, WashingtonWed, Sep 19, 7:16 PM PDT · 15351 days ago · 26 km deep · 33 km away
38. 2.39 km WNW of Belfair, WashingtonFri, Sep 21, 2:17 PM PDT · 15349 days ago · 14 km deep · 80 km away
39. 2.16 km SSW of Sultan, WashingtonSat, Sep 22, 2:50 AM PDT · 15348 days ago · 9 km deep · 25 km away
40. 2.13 km S of South Prairie, WashingtonMon, Sep 24, 2:27 PM PDT · 15346 days ago · 7 km deep · 55 km away
41. 1.67 km WNW of Lofall, WashingtonWed, Sep 26, 4:31 AM PDT · 15344 days ago · 51 km deep · 70 km away

Before

1. 2.219 km NNE of Index, WashingtonSun, Jul 29, 2:22 AM PDT · 15403 days ago · 2 km deep · 54 km away
2. 2.018 km N of Index, WashingtonSat, Jul 28, 9:50 PM PDT · 15403 days ago · 1 km deep · 53 km away
3. 1.99 km SSE of Leavenworth, WashingtonSat, Jul 28, 7:40 AM PDT · 15404 days ago · 0 km deep · 96 km away
4. 2.76 km WSW of Shoreline, WashingtonTue, Jul 24, 3:12 PM PDT · 15408 days ago · 21 km deep · 44 km away
5. 2.16 km S of Wilderness Rim, WashingtonSun, Jul 22, 2:52 PM PDT · 15410 days ago · 18 km deep · 23 km away
6. 1.77 km S of Easton, WashingtonThu, Jul 19, 8:57 PM PDT · 15413 days ago · -1 km deep · 70 km away
7. 1.914 km WSW of Cliffdell, WashingtonThu, Jul 12, 3:32 AM PDT · 15420 days ago · 0 km deep · 93 km away
8. 2.39 km W of Belfair, WashingtonWed, Jul 11, 12:25 AM PDT · 15421 days ago · 17 km deep · 81 km away
9. 1.98 km ESE of Quilcene, WashingtonTue, Jul 10, 9:06 PM PDT · 15422 days ago · 22 km deep · 70 km away
10. 1.52 km SW of Lake Morton-Berrydale, WashingtonTue, Jul 10, 3:43 PM PDT · 15422 days ago · 50 km deep · 35 km away
11. 1.73 km ENE of Granite Falls, WashingtonTue, Jul 10, 1:52 PM PDT · 15422 days ago · 1 km deep · 57 km away
12. 1.87 km E of Greenwater, WashingtonMon, Jul 9, 12:18 PM PDT · 15423 days ago · -1 km deep · 55 km away
13. 1.514 km WSW of Cliffdell, WashingtonSun, Jul 8, 11:14 PM PDT · 15423 days ago · 0 km deep · 93 km away
14. 2.25 km WNW of Gorst, WashingtonSun, Jul 8, 8:04 AM PDT · 15424 days ago · 46 km deep · 67 km away
15. 1.93 km SSW of Swede Heaven, WashingtonWed, Jul 4, 12:10 PM PDT · 15428 days ago · 2 km deep · 76 km away
16. 2.03 km SSE of Swede Heaven, WashingtonTue, Jul 3, 8:51 PM PDT · 15429 days ago · -1 km deep · 76 km away
17. 2.16 km NNW of Freeland, WashingtonTue, Jul 3, 5:45 PM PDT · 15429 days ago · 29 km deep · 73 km away
18. 1.65 km NNW of North Sultan, WashingtonTue, Jul 3, 12:35 PM PDT · 15429 days ago · 11 km deep · 39 km away
19. 1.64 km W of Burley, WashingtonTue, Jul 3, 7:26 AM PDT · 15429 days ago · 22 km deep · 63 km away

From the USGS Earthquake Hazards Program and its partner networks, event uw10179083. Read Wed, Sep 30, 2026, 4:01 PM UTC.