Washington earthquakes

M1.6 earthquake 15 km ENE of Packwood, Washington

A magnitude 1.6 earthquake struck 15 km ENE of Packwood, Washington on Sat, Jul 28, 2001, 7:35 PM PDT (02:35 UTC), 2 km (1 mi) below the surface.

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

Tieton 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
2001-07-29 02:35:55 UTC
Depth
2.4 km (1.5 mi), shallow
Epicenter
46.658° N, 121.477° 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 0.3 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
109°
Stations used
22

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 6 in the 30 days before it.

After

  1. 1.622 km N of Amboy, Washington · 9193 days ago · 12 km deep · 99 km away
  2. 1.721 km N of Amboy, Washington · 9188 days ago · 14 km deep · 99 km away
  3. 1.523 km ENE of Ashford, Washington · 9174 days ago · 0 km deep · 30 km away
  4. 1.81 km SSW of Auburn, Washington · 9174 days ago · 16 km deep · 91 km away
  5. 1.817 km W of Packwood, Washington · 9168 days ago · 2 km deep · 32 km away
  6. 2.115 km ESE of Carbonado, Washington · 9161 days ago · 16 km deep · 51 km away
  7. 1.54 km ESE of Mossyrock, Washington · 9150 days ago · 19 km deep · 75 km away
  8. 1.615 km SSW of Morton, Washington · 9146 days ago · 16 km deep · 70 km away
  9. 2.312 km N of Naches, Washington · 9140 days ago · 15 km deep · 63 km away
  10. 1.538 km NNE of Amboy, Washington · 9136 days ago · 0 km deep · 74 km away

Before

  1. 1.66 km ESE of Mossyrock, Washington · 9196 days ago · 20 km deep · 74 km away
  2. 1.67 km SE of Mineral, Washington · 9208 days ago · 16 km deep · 48 km away
  3. 1.93 km SW of North Bend, Washington · 9211 days ago · 18 km deep · 95 km away
  4. 1.915 km ENE of Packwood, Washington · 9213 days ago · 5 km deep · 1 km away
  5. 1.616 km ENE of Yacolt, Washington · 9221 days ago · 14 km deep · 100 km away
  6. 3.311 km NNE of Ashford, Washington · 9224 days ago · 6 km deep · 44 km away · felt by 20

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10545978. Read Wed, Sep 30, 2026, 9:30 PM UTC.