M2.1 earthquake 5 km SSW of Morton, Washington
A magnitude 2.1 earthquake struck 5 km SSW of Morton, Washington on Fri, May 28, 1971, 11:07 AM PDT (18:07 UTC), 22 km (14 mi) below the surface.
A larger quake followed: M2.4 0 km NE of Lakeland South, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (md), micro
- Local time
- UTC
- 1971-05-28 18:07:07 UTC
- Depth
- 22.4 km (13.9 mi), shallow
- Epicenter
- 46.520° N, 122.313° 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 1.2 km horizontally, 4.0 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 252°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.40 km NE of Lakeland South, Washington · 20198 days ago · 18 km deep · 85 km away
- 2.77 km SW of Alder, Washington · 20191 days ago · 2 km deep · 27 km away
- 2.117 km SSW of Greenwater, Washington · 20191 days ago · 21 km deep · 70 km away
- 1.79 km NNW of Mossyrock, Washington · 20186 days ago · 45 km deep · 19 km away
- 2.334 km SSE of Morton, Washington · 20177 days ago · 13 km deep · 33 km away
- 2.43 km NE of Ashford, Washington · 20160 days ago · 6 km deep · 38 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10839068. Read Tue, Sep 22, 2026, 8:45 AM UTC.