M1.7 earthquake 6 km WSW of Darrington, Washington
A magnitude 1.7 earthquake struck 6 km WSW of Darrington, Washington on Mon, Aug 7, 1978, 1:37 PM PDT (20:37 UTC), 9 km (6 mi) below the surface.
A larger quake followed: M2.3 10 km S of Baring, 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
- 1978-08-07 20:37:04 UTC
- Depth
- 9.5 km (5.9 mi), shallow
- Epicenter
- 48.232° N, 121.682° 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 0.0 km horizontally, 0.1 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 156°
- 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: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 1.73 km NE of Southworth, Washington · 17572 days ago · 14 km deep · 97 km away
- 2.310 km S of Baring, Washington · 17568 days ago · 11 km deep · 63 km away
- 1.923 km N of Marblemount, Washington · 17559 days ago · 1 km deep · 59 km away
- 2.16 km N of Kingston, Washington · 17551 days ago · 14 km deep · 73 km away
- 1.610 km NNE of Snoqualmie, Washington · 17541 days ago · -1 km deep · 69 km away
Before
- 1.50 km WSW of North Bend, Washington · 17583 days ago · 19 km deep · 83 km away
- 1.54 km SW of Hansville, Washington · 17587 days ago · 12 km deep · 78 km away
- 1.93 km E of Port Townsend, Washington · 17593 days ago · 23 km deep · 78 km away
- 1.53 km E of Alger, Washington · 17602 days ago · 18 km deep · 63 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10847643. Read Tue, Sep 22, 2026, 9:09 AM UTC.