M1.7 earthquake 12 km WNW of Langford, Canada
A magnitude 1.7 earthquake struck 12 km WNW of Langford, Canada on Sun, May 31, 1981, 7:42 PM PDT (02:42 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M1.9 11 km NE of Oak Bay, Canada. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (md), micro
- Local time
- UTC
- 1981-06-01 02:42:24 UTC
- Depth
- 19.3 km (12.0 mi), shallow
- Epicenter
- 48.501° N, 123.657° 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 2.9 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 277°, poorly surrounded by stations
- Stations used
- 6
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 2 in the 30 days before it.
After
- 1.911 km NE of Oak Bay, Canada · 16543 days ago · 35 km deep · 36 km away
- 2.37 km ENE of Quilcene, Washington · 16541 days ago · 52 km deep · 98 km away
- 1.55 km NE of Port Townsend, Washington · 16525 days ago · 26 km deep · 81 km away
- 2.313 km WNW of Orcas, Washington · 16519 days ago · 16 km deep · 44 km away
- 1.613 km WNW of Orcas, Washington · 16506 days ago · 15 km deep · 43 km away
- 2.320 km S of Port Angeles East, Washington · 16498 days ago · 44 km deep · 67 km away
- 2.15 km NW of Orcas, Washington · 16497 days ago · 16 km deep · 51 km away
Before
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10107578. Read Tue, Sep 22, 2026, 8:06 PM UTC.