M1.9 earthquake 3 km SSW of Concrete, Washington
A magnitude 1.9 earthquake struck 3 km SSW of Concrete, Washington on Fri, Jun 1, 1973, 12:05 PM PDT (19:05 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.3 6 km SSE of Kendall, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1973-06-01 19:05:50 UTC
- Depth
- -0.7 km (-0.5 mi), shallow
- Epicenter
- 48.510° N, 121.766° 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 1.7 km horizontally, 2.5 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 322°, 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: 9 in the 60 days after this one and 6 in the 30 days before it.
After
- 1.84 km SSE of Freeland, Washington · 19471 days ago · 54 km deep · 81 km away
- 1.93 km NE of Big Lake, Washington · 19469 days ago · 18 km deep · 34 km away
- 1.53 km WSW of Hansville, Washington · 19462 days ago · -1 km deep · 91 km away
- 2.36 km SSE of Kendall, Washington · 19460 days ago · 10 km deep · 46 km away
- 2.65 km S of Sultan, Washington · 19422 days ago · 16 km deep · 77 km away
- 1.64 km SW of Hansville, Washington · 19422 days ago · 18 km deep · 93 km away
- 2.55 km SW of Darrington, Washington · 19419 days ago · -1 km deep · 34 km away
- 2.82 km ENE of Lochsloy, Washington · 19418 days ago · 43 km deep · 53 km away
- 2.12 km N of Burlington, Washington · 19415 days ago · 11 km deep · 41 km away
Before
- 2.34 km ESE of La Conner, Washington · 19472 days ago · 11 km deep · 52 km away
- 2.07 km ESE of Carnation, Washington · 19484 days ago · 6 km deep · 98 km away
- 1.83 km NE of Redmond, Washington · 19488 days ago · 15 km deep · 94 km away
- 2.213 km SSW of Gold Bar, Washington · 19489 days ago · 3 km deep · 86 km away
- 2.66 km SSW of Hansville, Washington · 19493 days ago · 21 km deep · 94 km away
- 1.711 km WNW of Ault Field, Washington · 19500 days ago · 23 km deep · 79 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10840178. Read Tue, Sep 22, 2026, 5:23 PM UTC.