1954 Chlef earthquake

The 1954 Chlef earthquake struck Chlef Province in French Algeria on September 9 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.

1954 Chlef earthquake
Algiers
Oran
UTC time1954-09-09 01:04:43
ISC event891046
USGS-ANSSComCat
Local dateSeptember 9, 1954 (1954-09-09)
Local time02:04:43
Magnitude6.7 Mw
Depth15 km (9.3 mi)
Epicenter36.27°N 1.59°E / 36.27; 1.59
TypeDip-slip
Areas affectedChlef 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
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