M1.7 earthquake 13 km WNW of Chilliwack, Canada
A magnitude 1.7 earthquake struck 13 km WNW of Chilliwack, Canada on Thu, Oct 29, 1987, 4:53 PM PST (00:53 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M1.9 9 km NNW of Ault Field, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (md), micro
- Local time
- UTC
- 1987-10-30 00:53:12 UTC
- Depth
- -1.1 km (-0.7 mi), shallow
- Epicenter
- 49.193° N, 122.135° 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 0.9 km horizontally, 1.3 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 286°, poorly surrounded by stations
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10227058. Read Tue, Sep 22, 2026, 4:18 PM UTC.