M2.2 earthquake 7 km W of Sumas, Washington
A magnitude 2.2 earthquake struck 7 km W of Sumas, Washington on Tue, Nov 12, 1974, 7:36 AM PST (15:36 UTC), 4 km (2 mi) below the surface.
A larger quake followed: M3.1 3 km SSW of Lyman, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.2 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1974-11-12 15:36:41 UTC
- Depth
- 3.8 km (2.4 mi), shallow
- Epicenter
- 48.990° N, 122.362° 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.
- Magnitude uncertainty
- ±0.26
- Depth from
- Operator assigned
- Station coverage gap
- 295°, poorly surrounded by stations
- Stations used
- 3
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 2 in the 30 days before it.
After
- 2.21 km NNW of Hamilton, Washington · 18949 days ago · 2 km deep · 57 km away
- 1.84 km E of Big Lake, Washington · 18926 days ago · 19 km deep · 66 km away
- 2.83 km SW of Hamilton, Washington · 18919 days ago · 1 km deep · 60 km away
- 3.13 km SSW of Lyman, Washington · 18919 days ago · 1 km deep · 58 km away
- 2.14 km SW of Hamilton, Washington · 18919 days ago · 0 km deep · 60 km away
- 2.85 km WSW of Mount Vernon, Washington · 18897 days ago · 19 km deep · 65 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10859813. Read Fri, Oct 2, 2026, 10:30 PM UTC.