M1.7 earthquake 14 km S of Packwood, Washington
A magnitude 1.7 earthquake struck 14 km S of Packwood, Washington on Wed, Sep 5, 1979, 3:44 PM PDT (22:44 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M1.9 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
- 1979-09-05 22:44:24 UTC
- Depth
- 2.4 km (1.5 mi), shallow
- Epicenter
- 46.477° N, 121.699° 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 1.5 km horizontally, 1.5 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 230°, poorly surrounded by stations
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 1.9Washington · 17180 days ago · 10 km deep · 47 km away
- 1.68 km SW of Morton, Washington · 17169 days ago · 20 km deep · 50 km away
- 1.537 km SSE of Morton, Washington · 17146 days ago · 6 km deep · 40 km away
- 1.611 km SSE of Mossyrock, Washington · 17142 days ago · 16 km deep · 54 km away
- 2.617 km SSE of Carbonado, Washington · 17125 days ago · 9 km deep · 55 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10850578. Read Tue, Sep 22, 2026, 12:20 PM UTC.