Sismicité historique de la France 

Source : BRGM, EDF, IRSN / SisFrance   

Characteristic of the earthquake
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IDENTITY: 1140051 
Date of the earthquake: 18 March 1817
Time of the earthquake: 10 h 45 min 
Nature of the shock: ok 
Epicentral region: RIOJA (LOGRONO-ARNEDO) - ESPAGNE 

Geographic co-ordinates (degrees, sexagesimal minutes) :
Longitude: 2° 10' W, Latitude: 42° 11' N
Reliability index: Strongly assumed location (D
Intensity at the epicentre (according to the MSK 1964 macro-seismic scale): 
Intensity:   8,5  
Reliability index: Not very certain (C

Source : BRGM, EDF, IRSN / SisFrance
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