LIQUEFACTION POTENTIAL IN THE LOWER SEGURA RIVER BASIN (SOUTH-EAST SPAIN)

In this study, we have carried out an analysis of the liquefaction pot ential in a zone where there exists a variety of (geologic, paleoseism ologic and historical) data which confirm the occurrence of past lique faction. The obtained data have been mapped according to susceptibilit y and liquefaction potential. The susceptibility map is based on geote chnical data and a moderate to high susceptibility has been determinat ed for the flood plain of the river and surrounding areas. In order to estimate potential variability, we have worked with various sets of s eismic sources and with a variation of the average SPT value which cha racterizes each zone. The results indicate that the analysis of potent ial is very sensitive to any variation in the variables that are invol ved in its calculation. (C) 1998 Elsevier Science B.V.