M2.7 earthquake 1 km SSW of Warden, Washington
A magnitude 2.7 earthquake struck 1 km SSW of Warden, Washington on Sat, Feb 2, 1991, 1:38 PM PST (21:38 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M3.0 2 km SSE of Mattawa, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.7 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1991-02-02 21:38:23 UTC
- Depth
- 2.1 km (1.3 mi), shallow
- Epicenter
- 46.956° N, 119.049° W
- Region
- Washington
- 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 0.4 km horizontally, 0.5 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 136°
- Stations used
- 32
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 3.02 km SSE of Mattawa, Washington · 13005 days ago · 1 km deep · 69 km away
- 1.89 km SW of Royal City, Washington · 12989 days ago · 3 km deep · 53 km away
- 1.610 km SW of Royal City, Washington · 12989 days ago · 2 km deep · 54 km away
- 1.89 km WSW of Royal City, Washington · 12988 days ago · 0 km deep · 53 km away
- 2.39 km SW of Royal City, Washington · 12985 days ago · 3 km deep · 53 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10268833. Read Mon, Oct 5, 2026, 9:19 AM UTC.