Oregon earthquakes

M1.7 earthquake 9 km N of Bethany, Oregon

A magnitude 1.7 earthquake struck 9 km N of Bethany, Oregon on Sat, Oct 19, 1991, 7:17 PM PDT (02:17 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M3.0 8 km N of Bethany, Oregon. This one was a foreshock.

Bethany forecastMore in Oregon

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
1991-10-20 02:17:37 UTC
Depth
18.8 km (11.7 mi), shallow
Epicenter
45.640° N, 122.880° 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 0.6 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
77°
Stations used
34

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 12 in the 30 days before it.

After

  1. 3.08 km N of Bethany, Oregon · 12768 days ago · 20 km deep · 1 km away
  2. 1.88 km N of Bethany, Oregon · 12767 days ago · 19 km deep · 1 km away
  3. 1.610 km NE of North Plains, Oregon · 12767 days ago · 17 km deep · 1 km away
  4. 2.18 km N of Bethany, Oregon · 12766 days ago · 20 km deep · 1 km away
  5. 1.64 km SW of Mill Plain, Washington · 12755 days ago · 18 km deep · 27 km away
  6. 2.54 km WSW of Mill Plain, Washington · 12755 days ago · 15 km deep · 26 km away
  7. 1.84 km S of Orchards, Washington · 12755 days ago · 15 km deep · 26 km away
  8. 1.94 km S of Orchards, Washington · 12755 days ago · 13 km deep · 25 km away
  9. 1.94 km WSW of Mill Plain, Washington · 12753 days ago · 16 km deep · 26 km away
  10. 1.83 km S of Orchards, Washington · 12753 days ago · 19 km deep · 25 km away
  11. 1.81 km NE of Canby, Oregon · 12748 days ago · 25 km deep · 44 km away
  12. 1.829 km SSE of Mossyrock, Washington · 12718 days ago · 6 km deep · 80 km away

Before

  1. 2.88 km N of Bethany, Oregon · 12770 days ago · 18 km deep · 2 km away
  2. 1.79 km N of Bethany, Oregon · 12771 days ago · 20 km deep · 0 km away
  3. 1.58 km N of Bethany, Oregon · 12771 days ago · 19 km deep · 1 km away
  4. 3.18 km ENE of North Plains, Oregon · 12771 days ago · 20 km deep · 1 km away
  5. 1.78 km N of Bethany, Oregon · 12771 days ago · 18 km deep · 0 km away
  6. 1.57 km W of Deer Island, Oregon · 12780 days ago · 23 km deep · 32 km away
  7. 1.93 km WSW of Falls City, Oregon · 12781 days ago · 21 km deep · 99 km away
  8. 1.938 km NNE of Amboy, Washington · 12786 days ago · -1 km deep · 83 km away
  9. 2.127 km SSE of Mossyrock, Washington · 12790 days ago · 0 km deep · 86 km away
  10. 2.338 km NNE of Amboy, Washington · 12794 days ago · -2 km deep · 82 km away
  11. 2.538 km NNE of Amboy, Washington · 12795 days ago · -2 km deep · 82 km away
  12. 1.923 km S of Morton, Washington · 12796 days ago · 9 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10282443. Read Mon, Oct 5, 2026, 1:01 AM UTC.