Field evidence of seismites in Quaternary deposits of the Jijel (Eastern Algeria) coastal region

Coastal Risk and Water Flow Analysis in Eastern Algeria (Western Mediterranean)

“…Here, the authors highlighted as well that "the action of strong currents and collapse of material may be ruled out because of the absence of slope in the deposit environment of the studied quaternary deposits". The observations gathered by Benhamouche et al [22] correspond to a spatial distribution of the features that fit the area of maximum intensity of the historical major earthquake of August 1856 that triggered a destructive tsunami. In the coast of Jijel (between 3°75E to 6°10E), "the observed soil…”

“…The quantification of the size of the rupture area from the seismic moment helps to propose the sudden sea bottom uplift. Geological and Geophysical offshore surveys and investigations in eastern Algeria revealed several features related to destructive past events and active faults offshore and inland in the Algerian margin [21,22]. The deformation identified in soft sediments (quaternary deposits) located in the coast of Jijel are attributed to strong earthquakes (sismoslumps, seismites) [22].…”

“…Geological and Geophysical offshore surveys and investigations in eastern Algeria revealed several features related to destructive past events and active faults offshore and inland in the Algerian margin [21,22]. The deformation identified in soft sediments (quaternary deposits) located in the coast of Jijel are attributed to strong earthquakes (sismoslumps, seismites) [22]. Nevertheless, Benhamouche et al [22] pointed out that the soft deformation features may have different origins such as seismic shocks, strong turbulence, and high tractive current as well as a collapse of a granular material in slope morphology.…”

“…The deformation identified in soft sediments (quaternary deposits) located in the coast of Jijel are attributed to strong earthquakes (sismoslumps, seismites) [22]. Nevertheless, Benhamouche et al [22] pointed out that the soft deformation features may have different origins such as seismic shocks, strong turbulence, and high tractive current as well as a collapse of a granular material in slope morphology. Here, the authors highlighted as well that "the action of strong currents and collapse of material may be ruled out because of the absence of slope in the deposit environment of the studied quaternary deposits".…”