Washington earthquakes

M1.5 earthquake 23 km ENE of Ashford, Washington

A magnitude 1.5 earthquake struck 23 km ENE of Ashford, Washington on Sat, Aug 18, 2001, 6:00 AM PDT (13:00 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.3 12 km N of Naches, Washington. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
2001-08-18 13:00:58 UTC
Depth
0.4 km (0.2 mi), shallow
Epicenter
46.853° N, 121.758° 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 0.5 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
64°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.81 km SSW of Auburn, Washington · 9173 days ago · 16 km deep · 61 km away
  2. 1.74 km WNW of Dash Point, Washington · 9173 days ago · 21 km deep · 77 km away
  3. 1.817 km W of Packwood, Washington · 9167 days ago · 2 km deep · 27 km away
  4. 1.73 km NNE of White Center, Washington · 9164 days ago · 30 km deep · 89 km away
  5. 2.115 km ESE of Carbonado, Washington · 9161 days ago · 16 km deep · 21 km away
  6. 1.54 km ESE of Mossyrock, Washington · 9149 days ago · 19 km deep · 64 km away
  7. 1.615 km SSW of Morton, Washington · 9145 days ago · 16 km deep · 64 km away
  8. 2.312 km N of Naches, Washington · 9140 days ago · 15 km deep · 81 km away
  9. 1.538 km NNE of Amboy, Washington · 9136 days ago · 0 km deep · 79 km away
  10. 1.917 km S of Morton, Washington · 9132 days ago · 17 km deep · 64 km away

Before

  1. 1.56 km S of Baring, Washington · 9177 days ago · 9 km deep · 98 km away
  2. 1.622 km N of Amboy, Washington · 9193 days ago · 12 km deep · 100 km away
  3. 1.615 km ENE of Packwood, Washington · 9194 days ago · 2 km deep · 30 km away
  4. 1.66 km ESE of Mossyrock, Washington · 9196 days ago · 20 km deep · 64 km away
  5. 2.02 km NNE of Redmond, Washington · 9196 days ago · 2 km deep · 97 km away
  6. 2.23 km NNW of Mirrormont, Washington · 9199 days ago · 16 km deep · 74 km away
  7. 4.34 km WSW of DuPont, Washington · 9201 days ago · 52 km deep · 75 km away · felt by 740
  8. 1.63 km S of Seattle, Washington · 9201 days ago · 13 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10539983. Read Wed, Sep 30, 2026, 10:33 AM UTC.