M2.0 earthquake 22 km S of Morton, Washington
A magnitude 2.0 earthquake struck 22 km S of Morton, Washington on Tue, Jun 16, 1987, 7:32 PM PDT (02:32 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.1 37 km NNE of Amboy, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.0 (md), micro
- Local time
- UTC
- 1987-06-17 02:32:57 UTC
- Depth
- 10.3 km (6.4 mi), shallow
- Epicenter
- 46.357° N, 122.251° W
- Region
- Washington
- 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, 0.5 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 41°
- Stations used
- 32
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 4 in the 30 days before it.
After
- 1.58 km S of Pe Ell, Washington · 14340 days ago · 23 km deep · 83 km away
- 2.011 km ENE of Kalama, WA · 14333 days ago · 16 km deep · 50 km away
- 2.137 km NNE of Amboy, Washington · 14332 days ago · -2 km deep · 19 km away
- 1.838 km NNE of Amboy, Washington · 14329 days ago · -2 km deep · 17 km away
- 1.823 km ENE of Ashford, Washington · 14325 days ago · 2 km deep · 67 km away
- 1.923 km ENE of Ashford, Washington · 14317 days ago · -1 km deep · 67 km away
- 1.917 km ENE of Packwood, Washington · 14312 days ago · 8 km deep · 69 km away
- 1.712 km S of Morton, Washington · 14308 days ago · 6 km deep · 10 km away
- 1.625 km ENE of Ashford, Washington · 14304 days ago · 0 km deep · 69 km away
- 1.635 km NNE of Amboy, Washington · 14288 days ago · -2 km deep · 20 km away
Before
- 1.519 km E of Kelso, Washington · 14360 days ago · 13 km deep · 39 km away
- 2.210 km E of Yacolt, Washington · 14366 days ago · 6 km deep · 54 km away
- 1.511 km ENE of East Cathlamet, Washington · 14367 days ago · 23 km deep · 76 km away
- 1.77 km ENE of Mossyrock, Washington · 14369 days ago · 22 km deep · 25 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10220538. Read Tue, Sep 22, 2026, 9:29 PM UTC.