M1.5 earthquake 18 km SSW of Mansfield, Washington
A magnitude 1.5 earthquake struck 18 km SSW of Mansfield, Washington on Thu, Feb 18, 1982, 5:55 AM PST (13:55 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.4 8 km NW of Entiat, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1982-02-18 13:55:12 UTC
- Depth
- 0.1 km (0.1 mi), shallow
- Epicenter
- 47.658° N, 119.742° 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
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.48 km NW of Entiat, Washington · 16273 days ago · 6 km deep · 42 km away
- 1.75 km SSE of Almira, Washington · 16267 days ago · -1 km deep · 62 km away
- 2.76 km ENE of Chelan, Washington · 16255 days ago · 0 km deep · 27 km away
- 2.34 km WNW of Waterville, Washington · 16248 days ago · 4 km deep · 29 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10129193. Read Tue, Sep 22, 2026, 10:40 AM UTC.