Washington earthquakes

M2.8 earthquake 14 km NNE of Richland, Washington

A magnitude 2.8 earthquake struck 14 km NNE of Richland, Washington on Sun, Oct 27, 1985, 2:19 PM PST (22:19 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.2 8 km NNW of Moses Lake North, Washington. This one was a foreshock.

Richland 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
2.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1985-10-27 22:19:25 UTC
Depth
2.0 km (1.2 mi), shallow
Epicenter
46.399° N, 119.192° 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 0.6 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
77°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.28 km NNW of Moses Lake North, Washington · 14923 days ago · 20 km deep · 97 km away
  2. 1.623 km SSE of Kittitas, Washington · 14913 days ago · 1 km deep · 95 km away
  3. 1.823 km SSE of Kittitas, Washington · 14912 days ago · 2 km deep · 95 km away
  4. 2.913 km ESE of Prosser, Washington · 14912 days ago · 1 km deep · 41 km away
  5. 2.64 km NE of Royal City, Washington · 14912 days ago · 0 km deep · 66 km away
  6. 2.310 km ESE of Royal City, Washington · 14908 days ago · 0 km deep · 56 km away
  7. 2.65 km ENE of Umapine, Oregon · 14889 days ago · 3 km deep · 75 km away

Before

  1. 2.515 km NNE of Richland, Washington · 14949 days ago · 1 km deep · 1 km away
  2. 1.723 km NE of Terrace Heights, Washington · 14949 days ago · 3 km deep · 92 km away
  3. 1.912 km NW of Mattawa, Washington · 14954 days ago · 4 km deep · 78 km away
  4. 1.914 km SSW of Vantage, Washington · 14954 days ago · 0 km deep · 81 km away
  5. 1.822 km NNE of Terrace Heights, Washington · 14955 days ago · 2 km deep · 96 km away
  6. 1.711 km S of Toppenish, Washington · 14961 days ago · -1 km deep · 88 km away
  7. 2.123 km NNE of Terrace Heights, Washington · 14961 days ago · 2 km deep · 94 km away
  8. 1.622 km NNE of Terrace Heights, Washington · 14961 days ago · 0 km deep · 94 km away
  9. 2.512 km WNW of Mattawa, Washington · 14975 days ago · 1 km deep · 79 km away
  10. 3.012 km WNW of Mattawa, Washington · 14975 days ago · 1 km deep · 78 km away
  11. 3.012 km WNW of Mattawa, Washington · 14975 days ago · 1 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10201578. Read Thu, Oct 1, 2026, 10:46 AM UTC.