Washington earthquakes

M2.0 earthquake 7 km S of Richland, Washington

A magnitude 2.0 earthquake struck 7 km S of Richland, Washington on Sat, Aug 13, 1983, 3:14 PM PDT (22:14 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.4 2 km W of Tutuilla, Oregon. This one was a foreshock.

Richland forecastMore in Washington

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

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The earthquake

Magnitude
2.0 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1983-08-13 22:14:07 UTC
Depth
3.6 km (2.2 mi), shallow
Epicenter
46.222° N, 119.290° 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 1.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
106°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.07 km S of Richland, Washington · 15755 days ago · 0 km deep · 0 km away
  2. 2.42 km W of Tutuilla, Oregon · 15737 days ago · 16 km deep · 79 km away
  3. 2.41 km SSW of Waitsburg, Washington · 15730 days ago · 6 km deep · 87 km away
  4. 2.114 km WSW of Basin City, Washington · 15704 days ago · 12 km deep · 36 km away
  5. 1.73 km NNW of Highland, Washington · 15701 days ago · 8 km deep · 14 km away

Before

  1. 2.010 km W of Othello, Washington · 15756 days ago · 0 km deep · 67 km away
  2. 2.39 km W of Othello, Washington · 15756 days ago · 1 km deep · 68 km away
  3. 1.913 km NE of Mattawa, Washington · 15773 days ago · 1 km deep · 78 km away
  4. 2.09 km SW of Royal City, Washington · 15777 days ago · 0 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10159573. Read Fri, Oct 2, 2026, 3:42 AM UTC.