M1.7 earthquake 10 km WNW of Greenwater, Washington
A magnitude 1.7 earthquake struck 10 km WNW of Greenwater, Washington on Tue, Oct 21, 1980, 6:00 PM PDT (01:00 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M2.8 4 km SSW of Fall City, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1980-10-22 01:00:12 UTC
- Depth
- -1.2 km (-0.8 mi), shallow
- Epicenter
- 47.206° N, 121.770° 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 0.2 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 85°
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 7 in the 30 days before it.
After
- 1.812 km W of Packwood, Washington · 16778 days ago · 5 km deep · 69 km away
- 1.82 km ESE of Dash Point, Washington · 16772 days ago · 13 km deep · 49 km away
- 2.112 km SE of Mossyrock, Washington · 16755 days ago · 9 km deep · 97 km away
- 2.119 km NE of Ashford, Washington · 16750 days ago · 9 km deep · 34 km away
- 2.84 km SSW of Fall City, Washington · 16748 days ago · 7 km deep · 38 km away
- 1.619 km NNE of Ashford, Washington · 16744 days ago · 7 km deep · 34 km away
- 1.53 km SW of Cottage Lake, Washington · 16725 days ago · 20 km deep · 63 km away
Before
- 1.823 km SW of Packwood, Washington · 16781 days ago · 0 km deep · 86 km away
- 1.813 km W of Packwood, Washington · 16782 days ago · 6 km deep · 69 km away
- 3.013 km W of Packwood, Washington · 16784 days ago · 5 km deep · 69 km away
- 1.718 km SW of Cashmere, Washington · 16787 days ago · 0 km deep · 89 km away
- 1.70 km N of Federal Way, Washington · 16788 days ago · 8 km deep · 43 km away
- 1.84 km NE of Maplewood, Washington · 16795 days ago · 45 km deep · 61 km away
- 2.82 km E of Cottage Lake, Washington · 16802 days ago · 8 km deep · 63 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10093508. Read Fri, Oct 2, 2026, 12:48 AM UTC.