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2003 Boumerdès earthquake : ウィキペディア英語版 | 2003 Boumerdès earthquake
The 2003 Boumerdès earthquake occurred with a moment magnitude of 6.8 on May 21 in northern Algeria. The epicentre of the earthquake was located in the town of Thénia〔(Algeria hit by earthquake ) ''BBC News''〕 in Boumerdès Province, approximately 60 km east of the capital Algiers.〔 The quake was the strongest to hit Algeria in more than twenty years〔(Search for Algeria earthquake survivors ends ) ''BBC News''〕〔(History of deadly earthquakes ) ''BBC News''〕 – since 1980, when a magnitude 7.3 earthquake resulted in 3,500 deaths.〔(The Boumerdes (Algeria) Earthquake of May 21, 2003: Preliminary Reconnaissance Using Remotely Sensed Data ) ''Multidisciplinary Center for Earthquake Engineering''〕 ==Tectonics== Northern Algeria is situated at the boundary between the African Plate and the Eurasian Plate, thus creating a zone of compression. This zone of compression manifests itself by several thrust and faults.〔(Building performance in the Boumerdes, Algeria, Earthquake of May 21, 2003 ) ''Canadian Association for Earthquake Engineering''〕 Due to this location between two tectonic plates, many earthquakes occurred in the region.〔(Quake rescuers race against time ) ''CNN''〕 The mechanism of the earthquake on May 21 corresponds to a northeast-striking thrust fault named Zemmouri fault which was identified for the first time after this earthquake.〔 According to the United States Geological Survey,
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