M1.5 earthquake 9 km NE of Prosser, Washington
A magnitude 1.5 earthquake struck 9 km NE of Prosser, Washington on Sat, Jul 10, 1982, 1:15 PM PDT (20:15 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M2.3 18 km ESE of Royal City, 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
- 1982-07-10 20:15:06 UTC
- Depth
- 6.4 km (4.0 mi), shallow
- Epicenter
- 46.273° N, 119.697° 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 0.5 km horizontally, 0.3 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 120°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.318 km ESE of Royal City, Washington · 16144 days ago · 2 km deep · 64 km away
- 2.620 km NW of Bickleton, Washington · 16135 days ago · 9 km deep · 63 km away
- 1.620 km NW of Bickleton, Washington · 16135 days ago · 2 km deep · 62 km away
- 1.614 km E of Warden, Washington · 16125 days ago · 4 km deep · 99 km away
- 2.016 km SW of Ione, Oregon · 16105 days ago · 28 km deep · 99 km away
- 2.619 km WNW of Bickleton, Washington · 16094 days ago · 2 km deep · 68 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10138008. Read Tue, Sep 22, 2026, 9:54 AM UTC.