M1.9 earthquake 5 km SSE of Concrete, Washington
A magnitude 1.9 earthquake struck 5 km SSE of Concrete, Washington on Mon, Mar 22, 1982, 4:41 AM PST (12:41 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.0 4 km S of Shoreline, 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
- 1982-03-22 12:41:45 UTC
- Depth
- -0.7 km (-0.4 mi), shallow
- Epicenter
- 48.496° N, 121.709° 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 0.5 km horizontally, 8.2 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 206°, poorly surrounded by stations
- Stations used
- 8
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 5 in the 30 days before it.
After
- 2.04 km S of Shoreline, Washington · 16252 days ago · 21 km deep · 99 km away
- 1.52 km WSW of Monroe, Washington · 16239 days ago · 22 km deep · 75 km away
- 1.73 km S of Lake Cavanaugh, Washington · 16238 days ago · 10 km deep · 32 km away
- 2.44 km S of Mount Vernon, Washington · 16238 days ago · 15 km deep · 48 km away
- 2.62 km SSE of Mount Vernon, Washington · 16238 days ago · 19 km deep · 46 km away
- 1.84 km SSW of Clinton, Washington · 16211 days ago · 28 km deep · 79 km away
Before
- 2.16 km WNW of Chilliwack, Canada · 16263 days ago · -1 km deep · 81 km away
- 2.10 km ENE of Lake Marcel-Stillwater, Washington · 16264 days ago · 6 km deep · 90 km away
- 1.93 km WSW of Lake Cavanaugh, Washington · 16268 days ago · 13 km deep · 32 km away
- 2.15 km ESE of Lake Marcel-Stillwater, Washington · 16279 days ago · 13 km deep · 91 km away
- 1.53 km ENE of Union Hill-Novelty Hill, Washington · 16281 days ago · 0 km deep · 91 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10139953. Read Tue, Sep 22, 2026, 7:45 PM UTC.