M2.8 earthquake 22 km S of Morton, Washington
A magnitude 2.8 earthquake struck 22 km S of Morton, Washington on Fri, Sep 11, 1987, 6:13 AM PDT (13:13 UTC), 11 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.8 (md), micro
- Local time
- UTC
- 1987-09-11 13:13:10 UTC
- Depth
- 11.3 km (7.0 mi), shallow
- Epicenter
- 46.353° 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, 0.6 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 27°
- Stations used
- 46
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 1.622 km S of Morton, Washington · 14255 days ago · 12 km deep · 0 km away
- 2.616 km WSW of Alder, Washington · 14254 days ago · 18 km deep · 44 km away
- 1.53 km W of Deer Island, Oregon · 14252 days ago · 23 km deep · 68 km away
- 1.930 km E of Packwood, Washington · 14243 days ago · -1 km deep · 80 km away
- 1.715 km E of Castle Rock, Washington · 14239 days ago · 6 km deep · 35 km away
- 2.62 km W of Brush Prairie, Washington · 14236 days ago · 18 km deep · 73 km away
- 2.021 km SSE of Mossyrock, Washington · 14223 days ago · 7 km deep · 12 km away
- 2.025 km ENE of Ashford, Washington · 14219 days ago · -1 km deep · 70 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10223333 (also filed as usp00038ak). Read Tue, Sep 22, 2026, 8:35 PM UTC.