M2.1 earthquake 6 km SSE of Monroe, Washington
A magnitude 2.1 earthquake struck 6 km SSE of Monroe, Washington on Wed, Mar 5, 1980, 11:00 PM PST (07:00 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M3.8 10 km W of Port Townsend, 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
- 1980-03-06 07:00:47 UTC
- Depth
- 23.6 km (14.7 mi), shallow
- Epicenter
- 47.797° N, 121.949° 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, 0.8 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 17
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 4 in the 30 days before it.
After
- 2.118 km NNE of Ashford, Washington · 16996 days ago · 7 km deep · 98 km away
- 1.51 km ESE of Black Diamond, Washington · 16986 days ago · -1 km deep · 55 km away
- 1.89 km SSW of Bell Hill, Washington · 16982 days ago · 44 km deep · 91 km away
- 2.11 km S of Lynnwood, Washington · 16976 days ago · 22 km deep · 28 km away
- 3.810 km W of Port Townsend, Washington · 16960 days ago · 50 km deep · 80 km away
- 1.53 km NW of Bainbridge Island, Washington · 16951 days ago · 25 km deep · 49 km away
- 3.72 km E of Canterwood, Washington · 16949 days ago · 20 km deep · 65 km away
- 2.03 km S of Black Diamond, Washington · 16943 days ago · 13 km deep · 58 km away
- 2.00 km NE of Carnation, Washington · 16942 days ago · 25 km deep · 17 km away
Before
- 2.77 km S of Baring, Washington · 17005 days ago · 9 km deep · 36 km away
- 2.36 km W of Burley, Washington · 17007 days ago · 21 km deep · 71 km away
- 2.24 km ENE of Manchester, Washington · 17009 days ago · 22 km deep · 47 km away
- 1.84 km ESE of Hobart, Washington · 17024 days ago · 22 km deep · 44 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10075493. Read Tue, Sep 22, 2026, 9:05 AM UTC.