M3.4 earthquake 15km SW of Delta, B.C., MX

A magnitude 3.4 earthquake struck 15km SW of Delta, B.C., MX on Fri, Feb 22, 2002, 10:23 PM PST (06:23 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.0 11km WSW of Delta, B.C., MX. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.36	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.282 · 43 stations
3.6	Md, duration	USGS National Earthquake Information Center	Reviewed

The USGS’s account of the effects of this earthquake.

Felt in the southern part of the Mexicali Valley.

From the USGS event page for ci12457084. U.S. Geological Survey text and figures are in the public domain.

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 201 in the 60 days after this one and 176 in the 30 days before it.

The first 60 of at least 201.

From the USGS Earthquake Hazards Program and its partner networks, event ci12457084 (also filed as usp000az0c). Read Sat, Oct 3, 2026, 11:40 AM UTC.