M4.6 earthquake 13 km S of Chlef, Algeria

A magnitude 4.6 earthquake struck 13 km S of Chlef, Algeria on Fri, Oct 10, 1980, 3:12 PM GMT+1 (14:12 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.2 5 km W of El Attaf, Algeria. 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
4.6	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed
5.14	Mw, moment	ISC-GEM global catalog	Final · ±0.2

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 1.6 and up: 39 in the 60 days after this one and 2 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp0001a5z (also filed as iscgem636863). Read Sat, Oct 3, 2026, 6:49 PM UTC.