M1.7 earthquake 40 km SSE of Morton, Washington
A magnitude 1.7 earthquake struck 40 km SSE of Morton, Washington on Mon, May 3, 1976, 10:51 AM PDT (17:51 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.0 6 km NE of Elbe, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (md), micro
- Local time
- UTC
- 1976-05-03 17:51:42 UTC
- Depth
- 10.3 km (6.4 mi), shallow
- Epicenter
- 46.230° N, 122.048° 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 1.1 km horizontally, 3.2 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 318°, poorly surrounded by stations
- Stations used
- 4
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 2 in the 30 days before it.
After
- 2.128 km S of Morton, Washington · 18406 days ago · 16 km deep · 18 km away
- 1.83 km SW of Crocker, Washington · 18404 days ago · 8 km deep · 92 km away
- 1.54 km ENE of Mossyrock, Washington · 18395 days ago · 20 km deep · 45 km away
- 3.06 km NE of Elbe, Washington · 18375 days ago · 5 km deep · 64 km away
- 1.65 km ENE of Elbe, Washington · 18375 days ago · 3 km deep · 63 km away
- 1.92 km NE of Mossyrock, Washington · 18368 days ago · 19 km deep · 47 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10841293. Read Tue, Sep 29, 2026, 2:43 PM UTC.