Washington earthquakes

M2.1 earthquake 38 km NNE of Amboy, Washington

A magnitude 2.1 earthquake struck 38 km NNE of Amboy, Washington on Thu, Nov 12, 1987, 12:35 AM PST (08:35 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.6 21 km S of Morton, Washington. This one was a foreshock.

Amboy 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
2.1 (md), micro
Local time
UTC
1987-11-12 08:35:10 UTC
Depth
3.5 km (2.2 mi), shallow
Epicenter
46.200° N, 122.184° 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 0.3 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
74°
Stations used
16

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 2 in the 30 days before it.

After

  1. 1.522 km SSE of Packwood, Washington · 14190 days ago · -1 km deep · 50 km away
  2. 1.537 km NNE of Amboy, Washington · 14181 days ago · -2 km deep · 0 km away
  3. 2.014 km NE of Kalama, Washington · 14181 days ago · 17 km deep · 41 km away
  4. 1.921 km S of Morton, Washington · 14179 days ago · 10 km deep · 20 km away
  5. 2.621 km S of Morton, Washington · 14177 days ago · 7 km deep · 19 km away
  6. 1.97 km S of Morton, Washington · 14149 days ago · 15 km deep · 33 km away
  7. 1.52 km NE of North Bonneville, Washington · 14139 days ago · 2 km deep · 63 km away
  8. 2.73 km WSW of Crocker, Washington · 14137 days ago · -1 km deep · 96 km away
  9. 2.24 km SE of Orting, Washington · 14136 days ago · 6 km deep · 97 km away
  10. 2.03 km SW of Crocker, Washington · 14136 days ago · 0 km deep · 95 km away
  11. 2.03 km NE of North Bonneville, Washington · 14136 days ago · 3 km deep · 63 km away
  12. 2.24 km SE of Orting, Washington · 14134 days ago · 5 km deep · 97 km away

Before

  1. 2.025 km ENE of Ashford, Washington · 14219 days ago · -1 km deep · 82 km away
  2. 2.021 km SSE of Mossyrock, Washington · 14222 days ago · 7 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10225903. Read Tue, Sep 22, 2026, 11:13 AM UTC.