Washington earthquakes

M2.8 earthquake 10 km SSE of Mineral, Washington

A magnitude 2.8 earthquake struck 10 km SSE of Mineral, Washington on Fri, Mar 29, 1985, 11:09 PM PST (07:09 UTC), 15 km (9 mi) below the surface.

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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), micro
Local time
UTC
1985-03-30 07:09:18 UTC
Depth
15.1 km (9.4 mi), shallow
Epicenter
46.631° N, 122.144° 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, 0.6 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
46°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 196.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10190363. Read Tue, Sep 22, 2026, 10:00 AM UTC.