Washington earthquakes

M1.8 earthquake 43 km SE of Marblemount, Washington

A magnitude 1.8 earthquake struck 43 km SE of Marblemount, Washington on Sun, Nov 25, 2001, 1:22 AM PST (09:22 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.2 53 km WSW of Twisp, 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2001-11-25 09:22:54 UTC
Depth
6.0 km (3.8 mi), shallow
Epicenter
48.302° N, 120.967° 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 1.7 km horizontally, 99.9 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
157°
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: 9 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.83 km ENE of Granite Falls, Washington · 9067 days ago · -1 km deep · 75 km away
  2. 1.88 km NNE of Lake Marcel-Stillwater, Washington · 9065 days ago · 8 km deep · 90 km away
  3. 1.88 km NNE of Lake Marcel-Stillwater, Washington · 9065 days ago · 8 km deep · 89 km away
  4. 2.253 km WSW of Twisp, Washington · 9058 days ago · 4 km deep · 17 km away
  5. 2.05 km SSW of Big Lake, Washington · 9047 days ago · 16 km deep · 97 km away
  6. 1.62 km NW of Lake McMurray, Washington · 9047 days ago · 12 km deep · 95 km away
  7. 1.93 km ESE of Lake Marcel-Stillwater, Washington · 9047 days ago · 11 km deep · 97 km away
  8. 1.74 km SSE of Entiat, Washington · 9043 days ago · 1 km deep · 94 km away
  9. 1.62 km SSE of Entiat, Washington · 9042 days ago · -1 km deep · 92 km away

Before

  1. 1.76 km S of Darrington, Washington · 9081 days ago · 6 km deep · 48 km away
  2. 1.56 km N of Waterville, Washington · 9085 days ago · 2 km deep · 94 km away
  3. 1.71 km N of Woods Creek, Washington · 9086 days ago · 6 km deep · 83 km away
  4. 1.72 km E of Granite Falls, Washington · 9095 days ago · -1 km deep · 76 km away
  5. 1.56 km NNW of Waterville, Washington · 9096 days ago · 3 km deep · 93 km away
  6. 1.92 km NW of Waterville, Washington · 9098 days ago · 2 km deep · 96 km away
  7. 1.92 km S of Lake Roesiger, Washington · 9100 days ago · 11 km deep · 80 km away
  8. 2.31 km SW of Lake Marcel-Stillwater, Washington · 9106 days ago · 25 km deep · 100 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10547043. Read Sat, Oct 3, 2026, 1:33 AM UTC.