M1.7 earthquake 17 km SSE of Glacier, Washington
A magnitude 1.7 earthquake struck 17 km SSE of Glacier, Washington on Mon, Sep 10, 1979, 1:20 PM PDT (20:20 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.5 1 km SW of Rockport, 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
- 1979-09-10 20:20:18 UTC
- Depth
- -0.4 km (-0.3 mi), shallow
- Epicenter
- 48.761° N, 121.817° 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 0.9 km horizontally, 1.1 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 295°, poorly surrounded by stations
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10850658. Read Tue, Sep 22, 2026, 8:25 PM UTC.