Washington earthquakes

M1.8 earthquake 8 km SW of Warden, Washington

A magnitude 1.8 earthquake struck 8 km SW of Warden, Washington on Mon, Aug 5, 1985, 7:04 AM PDT (14:04 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.1 9 km WSW of Royal City, Washington. This one was a foreshock.

Warden forecastMore in Washington

Map

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

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1985-08-05 14:04:39 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
46.910° N, 119.120° 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 0.2 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
189°, poorly surrounded by stations
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.19 km WSW of Royal City, Washington · 15008 days ago · 0 km deep · 49 km away
  2. 1.914 km NW of Mattawa, Washington · 15003 days ago · 0 km deep · 72 km away
  3. 2.415 km ESE of Mansfield, Washington · 14996 days ago · -1 km deep · 98 km away
  4. 2.213 km WNW of Mattawa, Washington · 14992 days ago · 0 km deep · 72 km away
  5. 1.913 km WNW of Mattawa, Washington · 14972 days ago · 3 km deep · 72 km away
  6. 2.118 km NNW of Banks Lake South, Washington · 14972 days ago · 0 km deep · 98 km away
  7. 1.712 km WNW of Mattawa, Washington · 14972 days ago · 0 km deep · 71 km away
  8. 2.01 km SW of Quincy, Washington · 14969 days ago · 0 km deep · 66 km away
  9. 2.517 km NNW of Banks Lake South, Washington · 14969 days ago · 0 km deep · 98 km away
  10. 3.012 km WNW of Mattawa, Washington · 14966 days ago · 1 km deep · 72 km away
  11. 3.012 km WNW of Mattawa, Washington · 14966 days ago · 1 km deep · 72 km away
  12. 2.512 km WNW of Mattawa, Washington · 14966 days ago · 1 km deep · 71 km away

Before

  1. 1.83 km E of Connell, Washington · 15027 days ago · 2 km deep · 36 km away
  2. 2.714 km ESE of Mansfield, Washington · 15034 days ago · -1 km deep · 99 km away
  3. 2.514 km ESE of Mansfield, Washington · 15036 days ago · 0 km deep · 99 km away
  4. 1.67 km SSW of Highland, Washington · 15044 days ago · 6 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10192603. Read Tue, Sep 22, 2026, 6:06 AM UTC.