M3.8 earthquake 8km NW of Delta, B.C., MX

A magnitude 3.8 earthquake struck 8km NW of Delta, B.C., MX on Mon, Jan 13, 2003, 6:28 AM PST (14:28 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M5.0 74km SSW of Alberto Oviedo Mota, 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
3.75	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.227 · 64 stations
3.8	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed

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

Felt slightly in the El Centro area, California.

From the USGS event page for ci9879733. U.S. Geological Survey text and figures are in the public domain.

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

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: 166 in the 60 days after this one and 68 in the 30 days before it.

The first 60 of 166.

From the USGS Earthquake Hazards Program and its partner networks, event ci9879733 (also filed as usp000bnge). Read Sun, Oct 4, 2026, 7:58 PM UTC.