M1.5 earthquake 10 km NE of Ashford, Washington
A magnitude 1.5 earthquake struck 10 km NE of Ashford, Washington on Mon, Oct 9, 1978, 10:28 AM PDT (17:28 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M2.0 16 km NNE of Ashford, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1978-10-09 17:28:44 UTC
- Depth
- 7.7 km (4.8 mi), shallow
- Epicenter
- 46.818° N, 121.916° 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 0.5 km horizontally, 0.5 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 125°
- 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 2 in the 30 days before it.
After
- 1.98 km ESE of Kapowsin, Washington · 17514 days ago · 1 km deep · 22 km away
- 1.62 km ENE of Dash Point, Washington · 17514 days ago · 24 km deep · 68 km away
- 1.61 km WSW of Auburn, Washington · 17514 days ago · 10 km deep · 59 km away
- 1.915 km WSW of Alder, Washington · 17493 days ago · 11 km deep · 43 km away
- 2.016 km NNE of Ashford, Washington · 17479 days ago · 8 km deep · 9 km away
- 2.010 km ENE of Cliffdell, Washington · 17475 days ago · 3 km deep · 76 km away
- 1.6Puget Sound region, Washington · 17469 days ago · 23 km deep · 92 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10848063. Read Mon, Sep 28, 2026, 7:26 PM UTC.