1954 Chlef earthquake

1954 Chlef earthquake
Algiers
Oran
UTC time1954-09-09 01:04:43
ISC event891046
USGS-ANSSComCat
Local date9 September 1954 (1954-09-09)
Local time02:04:43
Magnitude6.7 Mw
Depth15 km (9.3 mi)
Epicenter36°16′N 1°35′E / 36.27°N 1.59°E / 36.27; 1.59
TypeDip-slip
Areas affectedEl Asnam Province
French Algeria
Total damage$6 million
Max. intensityMMI XI (Extreme)
Tsunami0.33 m (1 ft 1 in)
Casualties1,243–1,409 dead
5,000 injured

The 1954 Chlef earthquake struck El Asnam Province in French Algeria on 9 September at 02:04:43 local time. The shock measured 6.7 on the moment magnitude scale and had a maximum Mercalli intensity of XI (Extreme). It destroyed Chlef, then named Orléansville, leaving over 1,243 people dead and 5,000 injured. Damage was estimated at $6 million. It was followed by multiple aftershocks. Algeria faces annual earthquakes and has undergone several changes to its earthquake building codes since its first earthquake engineering regulations from 1717.