Washington earthquakes

M2.8 earthquake 9 km SSE of Sultan, Washington

A magnitude 2.8 earthquake struck 9 km SSE of Sultan, Washington on Tue, Nov 25, 2008, 11:31 PM PST (07:31 UTC), 17 km (11 mi) below the surface.

Sultan forecast More in Washington

Map

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

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The earthquake

Magnitude: 2.8 (Md, duration), micro
Magnitude from: Pacific Northwest Seismic Network
Local time: Tue, Nov 25, 2008, 11:31 PM PST
UTC: 2008-11-26 07:31:27 UTC
Depth: 17.2 km (10.7 mi), shallow
Epicenter: 47.778° N, 121.772° W
Region: Washington
Felt reports: 11
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.8	Md, duration	Pacific Northwest Seismic Network	Preferred · Final · ±0.05 · 20 stations
2.8	Md, duration	USGS National Earthquake Information Center	Reviewed

What happened

The USGS’s account of the effects of this earthquake.

Felt (III) at Sultan and (II) at Monroe and Snohomish. Also felt at Duvall, Oold Bar, Granite Falls, Index, Skykomish and Snoqualmie.

From the USGS event page for uw10763258. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

11 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 36°
Stations used: 64

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 17 in the 30 days before it.

After

Before

Earthquakes today Washington earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10763258 (also filed as usp000gpfs, uw11260731). Read Mon, Oct 5, 2026, 11:55 AM UTC.