M1.7 earthquake 10km NNW of Delta, B.C., MX

A magnitude 1.7 earthquake struck 10km NNW of Delta, B.C., MX on Wed, May 9, 1979, 4:46 PM PDT (23:46 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.1 4km NE of Westmorland, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 76 in the 30 days before it.

The first 60 of at least 200.

From the USGS Earthquake Hazards Program and its partner networks, event ci3348990. Read Sun, Oct 4, 2026, 5:43 AM UTC.