M1.7 earthquake 23 km NE of Sunnyside, Washington
A magnitude 1.7 earthquake struck 23 km NE of Sunnyside, Washington on Mon, Jul 4, 1983, 6:52 PM PDT (01:52 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M2.3 9 km W of Othello, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1983-07-05 01:52:06 UTC
- Depth
- 17.8 km (11.1 mi), shallow
- Epicenter
- 46.444° N, 119.763° 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
- ±0.09
- Depth from
- From location
- Station coverage gap
- 164°
- 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: 7 in the 60 days after this one and 0 in the 30 days before it.
After
- 2.020 km SW of Tampico, Washington · 15794 days ago · -1 km deep · 99 km away
- 2.09 km SW of Royal City, Washington · 15777 days ago · 0 km deep · 43 km away
- 1.913 km NE of Mattawa, Washington · 15773 days ago · 1 km deep · 44 km away
- 2.39 km W of Othello, Washington · 15756 days ago · 1 km deep · 56 km away
- 2.010 km W of Othello, Washington · 15756 days ago · 0 km deep · 54 km away
- 2.07 km S of Richland, Washington · 15755 days ago · 4 km deep · 44 km away
- 2.07 km S of Richland, Washington · 15755 days ago · 0 km deep · 44 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10156083. Read Fri, Oct 2, 2026, 7:36 AM UTC.