QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001a5w
USGS usp0001a5w

10 Oct 1980, 13:25

3 km NNE of Chlef, Algeria

A magnitude 7.3 ms earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 3 km NNE of Chlef, Algeria?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

36.195000, 1.354000

Open the interactive map ↗

Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

M 6.68

northern Algeria

M 6.2

5 km W of El Attaf, Algeria

M 6.16

5 km W of Sidi Akkacha, Algeria

M 6.02

12 km SE of Abou el Hassan, Algeria

M 6

22 km N of Tipasa, Algeria

M 5.5

17 km NNE of Mers el Kebir, Algeria

Catalog fields and provenance
Event ID
usp0001a5w
Coordinates
36.195, 1.354
Network
us
Significance
820