Sismicité historique de la France 

Source : BRGM, EDF, IRSN / SisFrance   

Characteristic of the earthquake
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IDENTITY: 170131 
Date of the earthquake: 18 April 2005
Time of the earthquake: 6 h 42 min 50 sec 
Nature of the shock: ok 
Epicentral region: ILE D'OLERON - CHARENTES 

Geographic co-ordinates (degrees, sexagesimal minutes) :
Longitude: 1° 20' W, Latitude: 45° 56' N
Reliability index: Fairly certain location (B
Intensity at the epicentre (according to the MSK 1964 macro-seismic scale): 
Intensity:   4,5  
Reliability index: Fairly certain (B

Source : BRGM, EDF, IRSN / SisFrance
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