M1.6 earthquake 25 km NNE of Concrete, Washington
A magnitude 1.6 earthquake struck 25 km NNE of Concrete, Washington on Sat, Sep 29, 2007, 12:42 PM PDT (19:42 UTC), 1 km (0 mi) below the surface.
A larger quake followed: M3.2 39 km W of Winthrop, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2007-09-29 19:42:34 UTC
- Depth
- 0.7 km (0.5 mi), shallow
- Epicenter
- 48.752° N, 121.624° 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, 2.2 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 64°
- Stations used
- 14
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 3 in the 30 days before it.
After
- 2.43 km S of Everson, Washington · 6944 days ago · 12 km deep · 54 km away
- 1.65 km WSW of Lake Cavanaugh, Washington · 6941 days ago · 8 km deep · 60 km away
- 2.32 km ENE of Granite Falls, Washington · 6939 days ago · -1 km deep · 77 km away
- 1.53 km WNW of Tulalip, Washington · 6939 days ago · 23 km deep · 92 km away
- 3.239 km W of Winthrop, Washington · 6901 days ago · 0 km deep · 74 km away
- 1.93 km SE of Arlington Heights, Washington · 6894 days ago · 2 km deep · 70 km away
- 1.63 km ENE of Maple Ridge, Canada · 6888 days ago · 3 km deep · 86 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10736828. Read Sun, Oct 4, 2026, 8:18 PM UTC.