M2.7 earthquake 10km NW of Delta, B.C., MX

A magnitude 2.7 earthquake struck 10km NW of Delta, B.C., MX on Wed, Mar 7, 1973, 8:19 AM PST (16:19 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.3 21km WSW 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: 10 in the 60 days after this one and 3 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ci3320406. Read Thu, Oct 1, 2026, 11:18 PM UTC.