M2.5 earthquake 7 km SE of Walla Walla East, Washington
A magnitude 2.5 earthquake struck 7 km SE of Walla Walla East, Washington on Sat, Aug 18, 1990, 5:52 AM PDT (12:52 UTC), 1 km (1 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.5 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1990-08-18 12:52:26 UTC
- Depth
- 1.4 km (0.8 mi), shallow
- Epicenter
- 46.011° N, 118.225° 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 10.3 km horizontally, 6.7 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- Operator assigned
- Station coverage gap
- 257°, poorly surrounded by stations
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 5 in the 30 days before it.
After
Before
- 1.63 km SSE of Mesa, Washington · 13195 days ago · 0 km deep · 84 km away
- 2.46 km SSW of Walla Walla East, Washington · 13200 days ago · 0 km deep · 9 km away
- 2.38 km E of Walla Walla East, Washington · 13200 days ago · 5 km deep · 6 km away
- 2.410 km ESE of Walla Walla East, Washington · 13201 days ago · 0 km deep · 3 km away
- 2.611 km SSE of Walla Walla East, Washington · 13202 days ago · 6 km deep · 6 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10264708. Read Fri, Oct 2, 2026, 4:02 PM UTC.