M1.5 earthquake 7 km WSW of Aldergrove, Canada
A magnitude 1.5 earthquake struck 7 km WSW of Aldergrove, Canada on Thu, Aug 27, 1981, 2:51 PM PDT (21:51 UTC), 37 km (23 mi) below the surface.
A larger quake followed: M1.9 17 km SSW of Gibsons, Canada. 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
- 1981-08-27 21:51:16 UTC
- Depth
- 37.3 km (23.2 mi), shallow
- Epicenter
- 49.041° N, 122.572° 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 3.4 km horizontally, 2.5 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 260°, poorly surrounded by stations
- 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: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 1.917 km SSW of Gibsons, Canada · 16460 days ago · 14 km deep · 80 km away
- 1.87 km NNW of Deming, Washington · 16441 days ago · 12 km deep · 30 km away
- 1.54 km ENE of Blaine, Washington · 16439 days ago · 10 km deep · 10 km away
Before
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10133103. Read Thu, Sep 24, 2026, 9:11 AM UTC.