Field evidence of Quaternary seismites in the Mostaganem-Relizane (western Algeria) region: seismotectonic implication

Guessoum, Nabila; Benhamouche, Azzeddine; Bouhadad, Youcef; Bourenane, Hamid; Abbouda, Moustafa

doi:10.1007/s12517-018-4009-1

Cited by 9 publications

(4 citation statements)

References 61 publications

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“…Hence, when strong shaking, even in the context of normal and strike-slip faulting, sediments can be remobilized and provide a triggering factor for local tsunamis offshore. Moreover, seismites have as well been evidenced in western Oranie and the large distribution of the observed deformations within western Oranie (100 km of coastline) suggests a strong source of energy [29], [52]. Finally, the 2016 Alboran seismic sequence with the first shock of magnitude reminds the potential for strong earthquakes in the region with a well-demonstrated threat for tsunami waves reaching the western coast of Algeria not only for thrusting events but for strike-slipping motions as well [16], [53].…”

Section: B Geohazards and Coastal Environmental Impactmentioning

confidence: 87%

“…2 shows the active tectonic of the Alboran and the Algero-Provençal basin compiled from [11]- [13]. Quaternary seismites from [29] are also reported and give evidence of past strong earthquakes' shaking in western Algeria. Not only can tremors displace sediments and debris, but rivers and lakes transport as well sedimentary bodies into source areas for submarine landslides and turbidity currents.…”

Section: Documenting On the Western Mediterraneanmentioning

confidence: 98%

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Coastal Environmental Impact of Geohazards in the Area of the Habibas Islands (Western Algeria, Alboran): Insights from GIS-Analysis and Remote Sensing

Amir

Theilen‐Willige

2022

EJGEO

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Algerian coastal areas in the southern part of the western Mediterranean Sea are prone to geohazards such as tsunami waves, storm surges, earthquakes, submarine mass movements, and volcanism. Located in the Gulf of Oran, the Habibas Archipelago is a well-preserved bio-environment where fauna and flora are unique. This region is nevertheless a zone where marine traffic (oil) and oil ports pose a threat to environmental offshore pollution. This study is focused on submarine mass movements and their potential to cause local tsunami waves. Digital Elevation Model (DEM) data and the DEM-derived morphometric maps support these investigations being integrated into a GeoInformation System (GIS). Bathymetric data of the western Mediterranean Sea are used to derive causal factors that influence the susceptibility to submarine mass movements. Sentinel 2, Landsat 8, and Sentinel 1 radar images help to identify coastal areas prone to landslides and the coast-near structural pattern. By integrating data collected from the literature and maps (geology, tectonics, earthquakes, mass movements) into a GeoInformationSystem (GIS) and by using remote sensing analysis, it might be possible to derive more precisely in the case of submarine landslides and turbidity currents in the which direction potential tsunami waves caused by these mass movements might be focused and directed.

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Section: B Geohazards and Coastal Environmental Impactmentioning

confidence: 87%

Section: Documenting On the Western Mediterraneanmentioning

confidence: 98%

Coastal Environmental Impact of Geohazards in the Area of the Habibas Islands (Western Algeria, Alboran): Insights from GIS-Analysis and Remote Sensing

Amir

Theilen‐Willige

2022

EJGEO

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“…This in ter val of seis mic ac tiv ity was fol lowed by vol ca nic (rhyolitic) ac tiv ity from the late Mio cene at ~14 Ma (Megartsi, 1985). Boukhedimi et al (2017) and Guessoum et al (2018), in their stud ies of the coastal Qua ter nary de pos its from NW Al geria, in di cated seis mic ac tiv ity dur ing this pe riod.…”

Section: Geological Settingmentioning

confidence: 97%

Record of Late Neogene seismites in turbidite deposits of the Tafna Basin (NW Algeria)

Benzina,

Pisarska-Jamroży,

Hebib

2023

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The wide variety of soft-sediment deformation structures (SSDS) developed within deposits of the same age may hinder the interpretation of their origin. Some types of SSDS may appear similar though have different trigger mechanisms, while others may result from a specific mechanism. Furthermore, the development of particular SSDS may be influenced by several synchronous or semi-synchronous factors. This study deals with the recognition of SSDS trigger mechanisms with respect to lithological and deformational features of the deposits concerned. Turbidite deposits of late Neogene age in the Hadjret El Gat area (Tafna Basin) contain different types of SSDS associated with (1) slope processes (e.g., slump folds) and induced overburden pressure, coupled with broken beds and overloading structures, and (2) liquefaction and fluidisation phenomena, leading to the development of load structures, ball-and-pillow structures, water-escape structures and syndepositional faults. These two mechanisms of SSDS formation in the study area are thought to result from seismically-induced triggers. Recognition of a vertically-repeated, sandwich-like arrangement of deformed and undeformed layers along with the SSDS features ("trapped" within beds) suggests that these internally-deformed beds are seismites, the first recognized in the Tafna Basin of NW Algeria. Large earthquakes may trigger seismic waves energetic enough to deform strata and induce the development of SSDS. This hypothesis is supported here by tectonic evidence, given deposition of the Tafna Basin strata in the convergence zone between Africa and Eurasia, active since the late Neogene.

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“…The North western of Algeria has an experienced several earthquakes and is among the 09/10/1790 Oran earthquake with an macro intensity of I = X (Bouhadad and Laouami, 2002;Marinas and Salord, 1991). The 1819 Mascara events with an intensity of I = X and that of 1851 with an macro intensity of I = VIII (Guessoum et al, 2018). Recently, significant earthquakes are recorded at the Echorfa surroundings region, the Hassine (Mascara) earthquake of August 1994 with a magnitude of moment Mw = 5.7 (Ayadi et al, 2002;Benouar et al, 1994) and those of Ain Temouchent (December 1999, Mw = 5.7) and Oran (Juan 2008, Mw = 5.5) (Belayadi et al, 2017).…”

Section: General Characteristics Of the Study Areamentioning

confidence: 99%

Gis-based analytical hierarchy process, weight of evidence and logistic regression models for the landslide susceptibility predicting in Echorfa Region (northwestern of Algeria)

ABİDİNE¹,

Abdelmansour²

2021

Bulletin of the Mineral Research and Exploration

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The main objective of this study is destined to combine the Analytical Hierarchy Process (AHP), Weight of Evidence (WOE), Logistic Regression (LR) methods and geographic information system (GIS) to predict landslide susceptibility of the Echorfa region (northwestern of Algeria). Nine factors such as slope, aspect, lithology, distance to faults, lineaments density, distance to the streams, precipitations, land use and altitude are included in landslide susceptibility evaluation process. A detailed landslide inventory map established by satellite images and filed surveys. Three landslide susceptibility maps are established using the different statistical models. Five landslide susceptibility categories are generated by the GSI classification nil, low, moderate, high and very high susceptibility. The performance of the different models in landslide susceptibility is calculate based in the area under curve of the Receiver Operating Characteristic (ROC) which give a satisfactory result, The results showed that the weight of evidence method is more performance than the two other techniques. The produced landslide susceptibility maps provide important spatial information about landslide prone area, where the constructed map's content will help the decision makers in land use planning.

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Field evidence of Quaternary seismites in the Mostaganem-Relizane (western Algeria) region: seismotectonic implication

Cited by 9 publications

References 61 publications

Coastal Environmental Impact of Geohazards in the Area of the Habibas Islands (Western Algeria, Alboran): Insights from GIS-Analysis and Remote Sensing

Coastal Environmental Impact of Geohazards in the Area of the Habibas Islands (Western Algeria, Alboran): Insights from GIS-Analysis and Remote Sensing

Record of Late Neogene seismites in turbidite deposits of the Tafna Basin (NW Algeria)

Gis-based analytical hierarchy process, weight of evidence and logistic regression models for the landslide susceptibility predicting in Echorfa Region (northwestern of Algeria)

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