Washington earthquakes

M1.8 earthquake 4 km NE of Entiat, Washington

A magnitude 1.8 earthquake struck 4 km NE of Entiat, Washington on Thu, Apr 12, 1990, 5:18 AM PDT (12:18 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.8 15 km NNE of Naches, Washington. This one was a foreshock.

Entiat forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-04-12 12:18:24 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
47.699° N, 120.159° W
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 1.3 km horizontally
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
66°
Stations used
14

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.88 km WSW of Chelan, Washington · 13320 days ago · 4 km deep · 13 km away
  2. 2.69 km NNW of Entiat, Washington · 13317 days ago · 0 km deep · 10 km away
  3. 1.69 km NNE of Entiat, Washington · 13311 days ago · 0 km deep · 7 km away
  4. 2.613 km W of Mansfield, Washington · 13310 days ago · -1 km deep · 30 km away
  5. 1.86 km W of Entiat, Washington · 13308 days ago · -1 km deep · 11 km away
  6. 2.26 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 46 km away
  7. 1.86 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 45 km away
  8. 1.83 km NNW of Waterville, Washington · 13295 days ago · 7 km deep · 6 km away
  9. 1.61 km SE of Entiat, Washington · 13288 days ago · 4 km deep · 4 km away
  10. 2.215 km WSW of Ellensburg, Washington · 13280 days ago · 4 km deep · 96 km away
  11. 1.710 km WNW of Vantage, Washington · 13278 days ago · 2 km deep · 82 km away
  12. 2.815 km NNE of Naches, Washington · 13263 days ago · 7 km deep · 99 km away

Before

  1. 1.79 km WNW of Entiat, Washington · 13329 days ago · 0 km deep · 12 km away
  2. 2.813 km NNW of Hartline, Washington · 13333 days ago · 7 km deep · 76 km away
  3. 1.812 km NW of Malott, Washington · 13337 days ago · 7 km deep · 78 km away
  4. 2.28 km NNE of Cashmere, Washington · 13340 days ago · 7 km deep · 23 km away
  5. 1.812 km SW of Entiat, Washington · 13341 days ago · 5 km deep · 17 km away
  6. 2.7Washington · 13344 days ago · 0 km deep · 56 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10257338. Read Fri, Oct 2, 2026, 12:05 AM UTC.