SISMICITE EN ALGERIE DE 1790 A 2000 : MÉCANISMES AUX FOYERS ET VITESSE DE RAPPROCHEMENT INTER-PLAQUES

Boughacha Mohamed Salah; Ouyed Merzouk; Benhallou Hadj; Djeddi Mabrouk; Hatzfeld Denis

Article Details

SISMICITE EN ALGERIE DE 1790 A 2000 : MÉCANISMES AUX FOYERS ET VITESSE DE RAPPROCHEMENT INTER-PLAQUES

Authors:

Boughacha Mohamed Salah | Ouyed Merzouk | Benhallou Hadj | Djeddi Mabrouk | Hatzfeld Denis

Publisher:

Ministère de l'Energie et des Mines

Journal:

Bulletin du Service Géologique de l'Algérie Vol.14 Issue 2, pp.65-77

Document Type:

Article

Publication Date:

7/2003

Document Language:

French

Document ID (Org No.):

2001400211

pISSN:

2588-1922

Keywords:

Algérie- Sismicité- Vitesse inter-plaques - Cartedes épicentres- Mécanismes au foyer

Abstract:

 More than 800earthquakes with magnitude greater than or equal to 4, have let us to obtain an epicenter map for the region of northern Algeria and the bordering areas, lying between 31°N- 38°N and 3°W-9°E for the period 1790-2000. This map which emphasizes the high degree of seismicity of the Atlas Mountains is completed by the focal solutions of twenty significant earthquakes of the period 1954-2000.The compressivestress regime suffered in the studied area, induced by the approaching movement of the Africa and Eurasia plates, is characterized by  NNW-SSE horizontal direction inferred from the mean P axis direction of the focal mechanisms.
A theoretical inter-plate velocity provides a N 330° direction in agreement with the convergence direction of the Africa and Eurasia plates obtained from the mean P axis. The mean calculated velocity is about 6 mm/year.

Article Details

SISMICITE EN ALGERIE DE 1790 A 2000 : MÉCANISMES AUX FOYERS ET VITESSE DE RAPPROCHEMENT INTER-PLAQUES

Authors: Boughacha Mohamed Salah | Ouyed Merzouk | Benhallou Hadj | Djeddi Mabrouk | Hatzfeld Denis

Publisher: Ministère de l'Energie et des Mines

Journal: Bulletin du Service Géologique de l'Algérie Vol.14 Issue 2, pp.65-77

Document Type: Article

Publication Date: 7/2003

Document Language: French

Document ID (Org No.): 2001400211

pISSN: 2588-1922

Algérie- Sismicité- Vitesse inter-plaques - Cartedes épicentres- Mécanismes au foyer

Issues

Authors:

Boughacha Mohamed Salah | Ouyed Merzouk | Benhallou Hadj | Djeddi Mabrouk | Hatzfeld Denis

Publisher:

Ministère de l'Energie et des Mines

Journal:

Bulletin du Service Géologique de l'Algérie Vol.14 Issue 2, pp.65-77

Document Type:

Article

Publication Date:

7/2003

Document Language:

French

Document ID (Org No.):

2001400211

pISSN:

2588-1922