M1.9 earthquake Washington
A magnitude 1.9 earthquake struck in Washington on Mon, Apr 30, 1990, 6:35 AM PDT (13:35 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M3.3 11 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
- 1.9 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1990-04-30 13:35:11 UTC
- Depth
- -0.2 km (-0.1 mi), shallow
- Epicenter
- 46.738° N, 119.507° 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 0.0 km horizontally, 0.1 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 51°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.78 km E of Mesa, Washington · 13293 days ago · 4 km deep · 50 km away
- 2.215 km WSW of Ellensburg, Washington · 13280 days ago · 4 km deep · 95 km away
- 1.710 km WNW of Vantage, Washington · 13278 days ago · 2 km deep · 53 km away
- 1.711 km WSW of Basin City, Washington · 13276 days ago · 1 km deep · 27 km away
- 1.812 km WSW of Basin City, Washington · 13271 days ago · 4 km deep · 28 km away
- 1.714 km NNE of Selah, Washington · 13271 days ago · 16 km deep · 72 km away
- 2.815 km NNE of Naches, Washington · 13263 days ago · 7 km deep · 84 km away
- 1.6Washington · 13259 days ago · 7 km deep · 97 km away
- 3.311 km W of Othello, Washington · 13254 days ago · 2 km deep · 18 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10263538. Read Fri, Oct 2, 2026, 1:49 AM UTC.