Washington earthquakes

M1.8 earthquake 8 km WSW of Chelan, Washington

A magnitude 1.8 earthquake struck 8 km WSW of Chelan, Washington on Fri, Apr 13, 1990, 5:39 PM PDT (00:39 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.6 9 km NNW of Entiat, Washington. This one was a foreshock.

Chelan forecastMore in Washington

Map

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

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-04-14 00:39:58 UTC
Depth
3.8 km (2.3 mi), shallow
Epicenter
47.813° N, 120.118° 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 0.4 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
89°
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: 9 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.69 km NNW of Entiat, Washington · 13317 days ago · 0 km deep · 13 km away
  2. 1.69 km NNE of Entiat, Washington · 13311 days ago · 0 km deep · 7 km away
  3. 2.613 km W of Mansfield, Washington · 13310 days ago · -1 km deep · 23 km away
  4. 1.86 km W of Entiat, Washington · 13308 days ago · -1 km deep · 20 km away
  5. 2.26 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 42 km away
  6. 1.86 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 41 km away
  7. 1.83 km NNW of Waterville, Washington · 13295 days ago · 7 km deep · 15 km away
  8. 1.61 km SE of Entiat, Washington · 13288 days ago · 4 km deep · 17 km away
  9. 1.710 km WNW of Vantage, Washington · 13278 days ago · 2 km deep · 94 km away

Before

  1. 1.84 km NE of Entiat, Washington · 13321 days ago · -1 km deep · 13 km away
  2. 1.79 km WNW of Entiat, Washington · 13329 days ago · 0 km deep · 18 km away
  3. 2.813 km NNW of Hartline, Washington · 13333 days ago · 7 km deep · 71 km away
  4. 1.812 km NW of Malott, Washington · 13337 days ago · 7 km deep · 65 km away
  5. 2.28 km NNE of Cashmere, Washington · 13340 days ago · 7 km deep · 33 km away
  6. 1.812 km SW of Entiat, Washington · 13341 days ago · 5 km deep · 28 km away
  7. 2.7Washington · 13344 days ago · 0 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10257613. Read Thu, Oct 1, 2026, 10:07 PM UTC.