Oregon earthquakes

M1.7 earthquake 4 km E of Silverton, Oregon

A magnitude 1.7 earthquake struck 4 km E of Silverton, Oregon on Sun, Jul 23, 1989, 7:04 PM PDT (02:04 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M3.7 4 km SE of Mill Plain, Washington. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-07-24 02:04:52 UTC
Depth
27.8 km (17.2 mi), shallow
Epicenter
45.001° N, 122.730° W
Region
Oregon
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 1.4 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
181°, poorly surrounded by stations
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 3.74 km SE of Mill Plain, Washington · 13575 days ago · 14 km deep · 71 km away
  2. 1.94 km WNW of Camas, Washington · 13575 days ago · 12 km deep · 71 km away
  3. 2.32 km SSE of La Center, Washington · 13564 days ago · 16 km deep · 94 km away
  4. 2.66 km N of Cherry Grove, Washington · 13548 days ago · 13 km deep · 96 km away
  5. 1.66 km E of La Center, Washington · 13548 days ago · 15 km deep · 96 km away
  6. 2.27 km NNE of Government Camp, Oregon · 13531 days ago · 3 km deep · 90 km away
  7. 2.18 km NNE of Government Camp, Oregon · 13531 days ago · 4 km deep · 90 km away
  8. 3.58 km NNE of Government Camp, Oregon · 13531 days ago · 4 km deep · 90 km away
  9. 2.07 km NNE of Government Camp, Oregon · 13531 days ago · 4 km deep · 90 km away
  10. 1.57 km NNE of Government Camp, Oregon · 13531 days ago · 3 km deep · 90 km away
  11. 1.68 km NE of Government Camp, Oregon · 13531 days ago · -1 km deep · 91 km away

Before

  1. 1.93 km SW of Silverton, Oregon · 13584 days ago · 8 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10248203. Read Fri, Oct 2, 2026, 1:37 AM UTC.