Washington earthquakes

M1.8 earthquake 7 km NNE of Waterville, Washington

A magnitude 1.8 earthquake struck 7 km NNE of Waterville, Washington on Wed, Apr 19, 1989, 11:02 PM PDT (06:02 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.5 12 km WSW of Malott, Washington. This one was a foreshock.

Waterville 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
1989-04-20 06:02:57 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
47.706° N, 120.014° 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 0.8 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
140°
Stations used
15

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 5 in the 30 days before it.

After

  1. 1.814 km E of Mansfield, Washington · 13669 days ago · -1 km deep · 44 km away
  2. 2.215 km E of Mansfield, Washington · 13669 days ago · 0 km deep · 45 km away
  3. 2.214 km ESE of Mansfield, Washington · 13668 days ago · 0 km deep · 42 km away
  4. 1.754 km E of Darrington, Washington · 13665 days ago · 0 km deep · 84 km away
  5. 4.512 km WSW of Malott, Washington · 13660 days ago · 15 km deep · 60 km away
  6. 1.86 km N of Waterville, Washington · 13657 days ago · 4 km deep · 4 km away
  7. 1.711 km NNW of Entiat, Washington · 13650 days ago · 0 km deep · 21 km away
  8. 2.38 km SSW of Entiat, Washington · 13644 days ago · 9 km deep · 20 km away
  9. 1.910 km SW of Royal City, Washington · 13638 days ago · 1 km deep · 98 km away
  10. 1.62 km SSW of Entiat, Washington · 13635 days ago · 9 km deep · 16 km away
  11. 1.87 km NNW of Entiat, Washington · 13626 days ago · 8 km deep · 19 km away
  12. 2.07 km NNW of Chelan, Washington · 13625 days ago · 0 km deep · 23 km away

Before

  1. 2.415 km E of Mansfield, Washington · 13688 days ago · 0 km deep · 45 km away
  2. 1.58 km NNW of Chelan, Washington · 13695 days ago · 0 km deep · 23 km away
  3. 1.67 km NNW of Chelan, Washington · 13695 days ago · -1 km deep · 23 km away
  4. 1.58 km NNW of Chelan, Washington · 13697 days ago · 0 km deep · 23 km away
  5. 2.63 km W of Entiat, Washington · 13705 days ago · 7 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10242883. Read Fri, Oct 2, 2026, 8:53 PM UTC.