Washington earthquakes

M2.2 earthquake 12 km SSE of Mossyrock, Washington

A magnitude 2.2 earthquake struck 12 km SSE of Mossyrock, Washington on Fri, Sep 14, 1973, 1:04 AM PDT (08:04 UTC), 11 km (7 mi) below the surface.

Mossyrock 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
2.2 (md), micro
Local time
UTC
1973-09-14 08:04:39 UTC
Depth
11.0 km (6.8 mi), shallow
Epicenter
46.430° N, 122.423° 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 2.2 km horizontally, 3.4 km in depth
Magnitude uncertainty
±0.18
Depth from
Operator assigned
Station coverage gap
265°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.214 km NNE of Ashford, Washington · 19364 days ago · 7 km deep · 62 km away
  2. 1.616 km ESE of Ashford, Washington · 19355 days ago · 11 km deep · 55 km away
  3. 1.734 km SSE of Morton, Washington · 19335 days ago · 6 km deep · 32 km away
  4. 1.61 km WNW of Puyallup, Washington · 19324 days ago · 23 km deep · 85 km away

Before

  1. 1.99 km SSE of Mossyrock, Washington · 19377 days ago · 9 km deep · 2 km away
  2. 1.910 km NNW of Packwood, Washington · 19378 days ago · 2 km deep · 60 km away
  3. 2.438 km NNE of Amboy, Washington · 19383 days ago · 8 km deep · 30 km away
  4. 1.827 km NNE of Amboy, Washington · 19387 days ago · 10 km deep · 31 km away
  5. 2.712 km S of Morton, Washington · 19393 days ago · 11 km deep · 13 km away
  6. 1.913 km ENE of Ashford, Washington · 19397 days ago · 8 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10857078. Read Wed, Sep 30, 2026, 1:14 AM UTC.