M1.6 earthquake 12 km S of Prosser, Washington
A magnitude 1.6 earthquake struck 12 km S of Prosser, Washington on Thu, Mar 11, 1982, 1:17 PM PST (21:17 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M1.7 11 km NE of Grandview, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1982-03-11 21:17:07 UTC
- Depth
- -0.5 km (-0.3 mi), shallow
- Epicenter
- 46.090° N, 119.767° 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 1.2 km horizontally, 1.0 km in depth
- Depth from
- Operator assigned
- Station coverage gap
- 198°, poorly surrounded by stations
- Stations used
- 6
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
- 1.711 km NE of Grandview, Washington · 16254 days ago · 0 km deep · 25 km away
- 2.18 km NE of Grandview, Washington · 16245 days ago · 2 km deep · 23 km away
- 1.68 km NNW of Selah, Washington · 16241 days ago · 13 km deep · 94 km away
- 1.715 km NNE of Richland, Washington · 16236 days ago · 0 km deep · 57 km away
- 1.713 km NE of Richland, Washington · 16224 days ago · 1 km deep · 56 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10131893. Read Tue, Sep 22, 2026, 12:10 PM UTC.