M1.8 earthquake 11 km ENE of Mission, Canada
A magnitude 1.8 earthquake struck 11 km ENE of Mission, Canada on Fri, Mar 8, 1991, 4:52 PM PST (00:52 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M2.4 0 km NW of Burlington, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1991-03-09 00:52:17 UTC
- Depth
- -1.1 km (-0.7 mi), shallow
- Epicenter
- 49.154° N, 122.150° W
- Region
- Canada
- 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 1.4 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- Operator assigned
- Station coverage gap
- 266°, poorly surrounded by stations
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.36 km WSW of Lake Cavanaugh, Washington · 12988 days ago · 2 km deep · 94 km away
- 2.40 km NW of Burlington, Washington · 12953 days ago · 15 km deep · 76 km away
- 1.60 km WSW of Burlington, Washington · 12953 days ago · 14 km deep · 77 km away
- 2.12 km S of Kendall, Washington · 12951 days ago · 16 km deep · 29 km away
- 2.121 km N of Mission, Canada · 12950 days ago · 5 km deep · 22 km away
- 2.05 km W of Concrete, Washington · 12950 days ago · 3 km deep · 73 km away
- 1.79 km SW of Everson, Washington · 12944 days ago · 15 km deep · 39 km away
- 1.5Washington · 12936 days ago · -1 km deep · 74 km away
Before
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10269933. Read Fri, Oct 2, 2026, 2:07 AM UTC.