M1.6 earthquake 6 km NE of Ashford, Washington
A magnitude 1.6 earthquake struck 6 km NE of Ashford, Washington on Sun, Jul 23, 1978, 12:14 PM PDT (19:14 UTC), 12 km (7 mi) below the surface.
A larger quake followed: M1.7 3 km NE of Southworth, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1978-07-23 19:14:56 UTC
- Depth
- 11.6 km (7.2 mi), shallow
- Epicenter
- 46.797° N, 121.964° 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 0.8 km horizontally, 1.6 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 126°
- Stations used
- 12
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 5 in the 30 days before it.
After
- 1.50 km WSW of North Bend, Washington · 17583 days ago · 19 km deep · 78 km away
- 1.611 km ENE of Onalaska, Washington · 17581 days ago · 17 km deep · 51 km away
- 1.65 km W of Burley, Washington · 17574 days ago · 22 km deep · 89 km away
- 1.73 km NE of Southworth, Washington · 17572 days ago · 14 km deep · 90 km away
- 1.96 km W of Burley, Washington · 17548 days ago · 22 km deep · 90 km away
- 1.610 km NNE of Snoqualmie, Washington · 17542 days ago · -1 km deep · 92 km away
- 2.11 km NW of Federal Way, Washington · 17539 days ago · 14 km deep · 66 km away
Before
- 1.6Washington · 17608 days ago · 3 km deep · 9 km away
- 1.514 km NNE of Ashford, Washington · 17609 days ago · 3 km deep · 8 km away
- 1.67 km ESE of Mineral, Washington · 17615 days ago · 16 km deep · 16 km away
- 1.78 km NW of Nile, Washington · 17617 days ago · 2 km deep · 73 km away
- 3.66 km NNW of Nile, Washington · 17620 days ago · 11 km deep · 76 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10847563. Read Tue, Sep 22, 2026, 4:15 PM UTC.