M1.6 earthquake 5 km ENE of Acme, Washington
A magnitude 1.6 earthquake struck 5 km ENE of Acme, Washington on Mon, Jul 23, 1979, 10:03 AM PDT (17:03 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.3 3 km WSW of Snohomish, 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
- 1979-07-23 17:03:35 UTC
- Depth
- -0.8 km (-0.5 mi), shallow
- Epicenter
- 48.737° N, 122.140° 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 0.2 km horizontally, 0.2 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 170°
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.33 km WSW of Snohomish, Washington · 17220 days ago · 23 km deep · 93 km away
- 1.83 km ENE of Eastmont, Washington · 17220 days ago · 23 km deep · 92 km away
- 1.5Washington · 17212 days ago · 13 km deep · 80 km away
- 1.57 km ESE of Deming, Washington · 17210 days ago · 0 km deep · 8 km away
- 2.76 km N of Jamestown, Washington · 17206 days ago · 50 km deep · 92 km away
- 1.717 km SSE of Glacier, Washington · 17179 days ago · 0 km deep · 24 km away
Before
- 1.53 km NE of Lake Ketchum, Washington · 17230 days ago · 2 km deep · 49 km away
- 1.910 km NW of Orcas, Washington · 17231 days ago · 9 km deep · 67 km away
- 1.57 km NW of Ault Field, Washington · 17242 days ago · 12 km deep · 59 km away
- 1.97 km SE of Hamilton, Washington · 17245 days ago · 4 km deep · 33 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10850283. Read Tue, Sep 22, 2026, 4:25 PM UTC.