Oregon earthquakes

M2.8 earthquake 3 km E of Portland, Oregon

A magnitude 2.8 earthquake struck 3 km E of Portland, Oregon on Sat, Jan 28, 2006, 6:00 PM PST (02:00 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.1 37 km NNE of Amboy, 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: 2.8 (Md, duration), micro
Magnitude from: Pacific Northwest Seismic Network
Local time: Sat, Jan 28, 2006, 6:00 PM PST
UTC: 2006-01-29 02:00:53 UTC
Depth: 15.2 km (9.4 mi), shallow
Epicenter: 45.519° N, 122.634° W
Region: Oregon
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 · ±0.04 · 13 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 Beaverton, Hillsboro, Lake Oswego, Portland and West Linn; (II) at Gresham, Oregon City and Scappoose. Also felt at Gladstone, Rainier, Saint Helens and Tualatin. Felt (III) at Camas, Ridgefield and Vancouver; (II) at La Center, Washington. Also felt at Battle Ground and Brush Prairie, Washington.

From the USGS event page for uw10693693. U.S. Geological Survey text and figures are in the public domain.

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 0.4 km horizontally, 0.5 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 58°
Stations used: 36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 67 in the 60 days after this one and 30 in the 30 days before it.

After

The first 60 of 67.

Before

Earthquakes today Oregon earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10693693 (also filed as usp000e91t). Read Sat, Oct 3, 2026, 7:59 AM UTC.