The 1980 El Asnam earthquake occurred on October 10 at 13:25:23 local time with a moment magnitude of 7.1 and a maximum Mercalli intensity of X (Extreme). The shock occurred in the Algerian town of El Asnam. The shocks were felt over 550 km (340 mi) away, with the initial earthquake lasting 35 seconds. It was the largest earthquake in Algeria, and was followed three hours later by a magnitude 6.2 aftershock. The earthquake created about 42 km (26 mi) of surface rupture and had a vertical slip of up to 4.2 m (14 ft). No foreshocks were recorded. The earthquake was found to have occurred very close to the epicenter of the 1954 Chlef earthquake using joint epicenter determination techniques. It occurred at a previously unknown reverse fault.
The 7.1 Mw El Asnam earthquake shakes northern Algeria, killing 2,633 and injuring 8,369.
On October 10, in the year 1980, The 7.1 Mw El Asnam earthquake shakes northern Algeria, killing 2,633 and injuring 8,369. This event is recorded as a Historical Events event in the history of October 10, one of 483 recorded events on this date across all of history.
Key Facts
- This event took place on October 10, 1980 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 1 Wikipedia article.
- The event is associated with a specific geographical location (see map below).
- Wikipedia source last updated on 26 July 2026.
On This Date in History 483
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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