M3.2 earthquake 32 km NE of Marblemount, Washington

A magnitude 3.2 earthquake struck 32 km NE of Marblemount, Washington on Sun, Feb 6, 2005, 12:53 AM PST (08:53 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.5 8 km ENE of Lake Roesiger, Washington. This one was a foreshock.

Map

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

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
3.2	Md, duration	Pacific Northwest Seismic Network	Preferred · Final · ±0.04 · 9 stations
3.2	Md, duration	USGS National Earthquake Information Center	Reviewed

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

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for uw10624203. U.S. Geological Survey text and figures are in the public domain.

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 3 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event uw10624203 (also filed as usp000dfkz). Read Fri, Oct 2, 2026, 2:40 PM UTC.