Washington earthquakes

M1.5 earthquake 2 km E of Hockinson, Washington

A magnitude 1.5 earthquake struck 2 km E of Hockinson, Washington on Thu, Oct 18, 2001, 2:12 AM PDT (09:12 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.6 3 km NNE of Government Camp, Oregon. This one was a foreshock.

Hockinson 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
1.5 (md), micro
Local time
UTC
2001-10-18 09:12:52 UTC
Depth
9.6 km (5.9 mi), shallow
Epicenter
45.743° N, 122.450° 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
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
71°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.012 km E of Mount Hood, Oregon · 9112 days ago · 3 km deep · 84 km away
  2. 1.737 km NNE of Amboy, Washington · 9105 days ago · 0 km deep · 55 km away
  3. 2.110 km S of Mossyrock, Washington · 9093 days ago · 18 km deep · 77 km away
  4. 1.52 km NE of Brush Prairie, Washington · 9090 days ago · 17 km deep · 6 km away
  5. 1.733 km NNE of Amboy, Washington · 9086 days ago · 11 km deep · 51 km away
  6. 2.43 km NNE of Government Camp, Oregon · 9068 days ago · 1 km deep · 72 km away
  7. 1.8Washington-Oregon border region · 9068 days ago · 3 km deep · 71 km away
  8. 2.13 km NNE of Government Camp, Oregon · 9068 days ago · 1 km deep · 72 km away
  9. 2.63 km NNE of Government Camp, Oregon · 9067 days ago · 4 km deep · 72 km away
  10. 1.627 km SSE of Morton, Washington · 9065 days ago · 4 km deep · 67 km away

Before

  1. 1.62 km S of Beaverton, Oregon · 9128 days ago · 24 km deep · 41 km away
  2. 2.322 km W of Yamhill, Oregon · 9128 days ago · 23 km deep · 92 km away
  3. 1.917 km S of Morton, Washington · 9132 days ago · 17 km deep · 74 km away
  4. 1.54 km NNE of Government Camp, Oregon · 9133 days ago · -1 km deep · 71 km away
  5. 1.538 km NNE of Amboy, Washington · 9136 days ago · 0 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10541533. Read Wed, Sep 30, 2026, 6:09 PM UTC.