Washington earthquakes

M1.6 earthquake 3 km E of Riverside, Washington

A magnitude 1.6 earthquake struck 3 km E of Riverside, Washington on Sun, Oct 8, 1989, 10:30 AM PDT (17:30 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.4 6 km ENE of Bainbridge Island, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-10-08 17:30:00 UTC
Depth
2.8 km (1.7 mi), shallow
Epicenter
48.118° N, 121.955° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.3 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
149°
Stations used
6

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.63 km NNW of Dash Point, Washington · 13503 days ago · 52 km deep · 93 km away
  2. 1.55 km SSE of Lake Roesiger, Washington · 13500 days ago · 15 km deep · 21 km away
  3. 2.04 km WNW of Federal Way, Washington · 13499 days ago · 9 km deep · 93 km away
  4. 1.97 km S of Bellingham, Washington · 13497 days ago · -1 km deep · 75 km away
  5. 1.91 km ESE of Darrington, Washington · 13488 days ago · 9 km deep · 32 km away
  6. 2.46 km ENE of Bainbridge Island, Washington · 13486 days ago · 25 km deep · 64 km away
  7. 2.22 km E of Yarrow Point, WA · 13477 days ago · 25 km deep · 56 km away
  8. 1.56 km N of Dash Point, Washington · 13471 days ago · 14 km deep · 89 km away
  9. 2.43 km ESE of Kirkland, Washington · 13470 days ago · 21 km deep · 53 km away
  10. 1.65 km SSW of Lake Cavanaugh, Washington · 13460 days ago · 11 km deep · 20 km away
  11. 1.84 km E of Echo Lake, Washington · 13459 days ago · 21 km deep · 37 km away
  12. 1.92 km WNW of Manchester, Washington · 13458 days ago · 30 km deep · 77 km away
  13. 2.23 km ESE of Riverbend, Washington · 13455 days ago · 12 km deep · 75 km away
  14. 2.04 km S of Alger, Washington · 13454 days ago · 7 km deep · 59 km away
  15. 1.60 km S of Bainbridge Island, Washington · 13452 days ago · 48 km deep · 70 km away
  16. 1.78 km NNE of Snoqualmie, Washington · 13448 days ago · 3 km deep · 60 km away
  17. 1.91 km NE of Chico, Washington · 13448 days ago · 23 km deep · 79 km away

Before

  1. 1.71 km WNW of Anacortes, Washington · 13513 days ago · 10 km deep · 67 km away
  2. 1.61 km S of Issaquah, Washington · 13522 days ago · -1 km deep · 67 km away
  3. 2.26 km W of Lake Cavanaugh, Washington · 13524 days ago · 12 km deep · 25 km away
  4. 2.36 km W of Lake Cavanaugh, Washington · 13524 days ago · 10 km deep · 25 km away
  5. 1.516 km E of Verlot, Washington · 13526 days ago · -1 km deep · 30 km away
  6. 1.74 km SE of Seabeck, Washington · 13534 days ago · 22 km deep · 84 km away
  7. 1.85 km ENE of Lake Marcel-Stillwater, Washington · 13534 days ago · -1 km deep · 45 km away
  8. 1.76 km NE of Hobart, Washington · 13536 days ago · 10 km deep · 74 km away
  9. 1.72 km NNE of Skykomish, Washington · 13536 days ago · 2 km deep · 63 km away
  10. 1.90 km NE of Edgewood, Washington · 13537 days ago · 6 km deep · 100 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10247468. Read Thu, Oct 1, 2026, 5:53 PM UTC.