Washington earthquakes

M1.6 earthquake 6 km ESE of Mossyrock, Washington

A magnitude 1.6 earthquake struck 6 km ESE of Mossyrock, Washington on Fri, Jul 27, 2001, 5:27 AM PDT (12:27 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M2.1 15 km ESE of Carbonado, Washington. This one was a foreshock.

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
1.6 (md), micro
Local time
UTC
2001-07-27 12:27:58 UTC
Depth
20.3 km (12.6 mi), shallow
Epicenter
46.497° N, 122.412° 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 0.4 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
84°
Stations used
20

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 6 in the 30 days before it.

After

  1. 1.615 km ENE of Packwood, Washington · 9194 days ago · 2 km deep · 74 km away
  2. 1.622 km N of Amboy, Washington · 9193 days ago · 12 km deep · 44 km away
  3. 1.721 km N of Amboy, Washington · 9188 days ago · 14 km deep · 44 km away
  4. 1.523 km ENE of Ashford, Washington · 9174 days ago · 0 km deep · 64 km away
  5. 1.81 km SSW of Auburn, Washington · 9173 days ago · 16 km deep · 90 km away
  6. 1.74 km WNW of Dash Point, Washington · 9173 days ago · 21 km deep · 94 km away
  7. 1.817 km W of Packwood, Washington · 9167 days ago · 2 km deep · 43 km away
  8. 1.617 km E of Kelso, Washington · 9166 days ago · 12 km deep · 46 km away
  9. 2.115 km ESE of Carbonado, Washington · 9161 days ago · 16 km deep · 72 km away
  10. 1.619 km E of Kelso, Washington · 9157 days ago · 13 km deep · 43 km away
  11. 1.54 km ESE of Mossyrock, Washington · 9149 days ago · 19 km deep · 2 km away
  12. 1.615 km SSW of Morton, Washington · 9145 days ago · 16 km deep · 10 km away

Before

  1. 4.34 km WSW of DuPont, Washington · 9201 days ago · 52 km deep · 69 km away · felt by 740
  2. 1.67 km SE of Mineral, Washington · 9207 days ago · 16 km deep · 31 km away
  3. 1.915 km ENE of Packwood, Washington · 9212 days ago · 5 km deep · 73 km away
  4. 1.821 km NNW of Amboy, Washington · 9219 days ago · 17 km deep · 45 km away
  5. 1.616 km ENE of Yacolt, Washington · 9221 days ago · 14 km deep · 67 km away
  6. 3.311 km NNE of Ashford, Washington · 9223 days ago · 6 km deep · 52 km away · felt by 20

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10544988. Read Wed, Sep 30, 2026, 11:41 AM UTC.