1n the region o/ Ch/ef (ex El AsnC/l17,Northwest ofAlgeriat numerous geodesi campaigns have been mude for the study ofterrestrial crustal movements associated 10 the S ismicity of the region. The results of the works of different timesof leveling measure.ss..¿ J of j 976, /986, /987 are comparad with the results obtained in 198/, /988 and /98, rhey confirm the tendency lo ,VW-SE overthrust and they indicate the persistence ofre/ative 1110Vel17el1i/ns the same sense. The evaluation and the simultaneous representa/ion of these deformations and o/ their errors are made by the method of Monte Carlo that allows /0 simulate a great number ofseries ofmeasurec_c' e' This method has pul in evidence the existence of significant movements in 90% of the simulations of Monte Carlo about {he speed of the altimetric displacements of different sections of leveling net in the region. In this work the results obtained in the different catnpaign are presented

Comunicación presntada a la 3ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica = 3ª Assembleia Luso-Espanhola de Geodesia e Geofisica, celebrada en Valencia entre el 4 y el 8 de febrero de 2002.

Peer reviewed