Los mayores sismos en Argelia en la época moderna: las fallas de El Asnam y Zemmouri-Boumerdès

Bezzeghoud, Mourad; Ayadi, Abdelhakim; Caldeira, Bento; Fontiela, João; Borges, José Fernando

doi:10.5209/fite.57618

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…7;Fonseca, 2020) considered this as tsunamigenic. Also, there are records of Mw 6.7 and Mw 7.3 earthquakes occurred in Asnam, North Africa, in 1954and 1980(Bezzeghoud et al, 2017, which triggered submarine landslides and tsunamis (Papadopoulos et al, 2014). These latter examples demonstrate the connection between earthquakes and other natural hazards such as submarine landslide and tsunamis (Collico et al, 2020).…”

Section: Introductionmentioning

confidence: 94%

Review article: Deterministic seismic hazard assessment of the area comprised between west Gulf of Cádiz and east Alboran Sea

Beltré¹,

Paredes

Llorente

2023

Preprint

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Abstract. The convergence zone of the NE-SW complex comprising the Gulf of Cádiz and the Alboran Sea, at the Eurasian-Nubian plate boundary, is frequently affected by seismic activity, caused by submarine long-strike strike-slip fault systems and arcuate fold-thrust systems found in the region. This has resulted in moderate to high magnitude earthquakes, including tsunamigenic earthquakes, and the area has also experienced tsunamis due to major earthquakes and gravitational landslides. This study carries out a Seismic Hazard Analysis, for bedrock conditions, of the marine area between the W of the Gulf of Cádiz and the E of the Alboran Sea in the Ibero-Maghrebian region, based on a deterministic approach, considering areal seismogenic sources. For the estimation of the seismic hazard, a Visual Basic script based on Excel has been used, which has been improved. The results obtained show that the most probable Peak Ground Acceleration (PGA) ranges from 0.2 to 0.4 g, although it can reach up to 1.0 g in certain areas. These results highlight the need for a detailed study of the distribution of seismic hazard in submarine areas, given the significant values of accelerations that can occur. This work is the first comprehensive deterministic seismic hazard assessment carried out in the Ibero-Maghrebian region and aims to take a first step to promote seismic hazard studies in marine areas, whose results can provide relevant information given the implications of earthquakes in the genesis of other natural hazards such as tsunamis and submarine landslides.

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Section: Introductionmentioning

confidence: 94%

Review article: Deterministic seismic hazard assessment of the area comprised between west Gulf of Cádiz and east Alboran Sea

Beltré¹,

Paredes

Llorente

2023

Preprint

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“…The Ibero-Maghrebian region comprises the southern part of the Iberian Peninsula, (including Andalusia, Murcia and Alicante) and North Africa from the Atlas range to the Mediterranean sea, bordering Tunisia to the east and the Atlantic coast of Portugal to the west, embracing Morocco and Algeria [1]. The seismicity of this region is characterized by the N-S to NW-SE convergence between Eurasian and Nubian plates [2]-with a possible rotational axis to the north of Canary Islands-and by the occurrence of shallow earthquakes (<30 km).…”

Section: Introductionmentioning

confidence: 99%

Effects of Earthquakes on Buildings in the Ibero-Maghrebian Region

Florido¹

2021

Natural Hazards - Impacts, Adjustments and Resilience

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The types of damage caused by earthquakes in buildings are closely related to the design and building techniques with which they have been built and the quality of the construction materials used. Most of countries with moderate to high seismic risk areas have implemented earthquake-resistant standards to prevent the collapse of buildings and minimize the severity of the damage. However, every new strong shake that occurs around the world reveals bad construction practices that could have been avoided, and the inadequacy or non-existence of earthquake-resistant standards aimed at reducing vulnerability to non-catastrophic levels. Based on the EMS-98 scale, in this chapter we will analyze three case studies of the Ibero-Maghrebian region that have been using similar construction patterns with similar catastrophic results for buildings despite the different dates in which they occurred and the different earthquake-resistant standards: SW Cape St. Vincent earthquake of February 28, 1969; Al Hoceima earthquake of February 24, 2004; and Lorca earthquake of May 11, 2011.

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Los mayores sismos en Argelia en la época moderna: las fallas de El Asnam y Zemmouri-Boumerdès

Cited by 2 publications

References 3 publications

Review article: Deterministic seismic hazard assessment of the area comprised between west Gulf of Cádiz and east Alboran Sea

Review article: Deterministic seismic hazard assessment of the area comprised between west Gulf of Cádiz and east Alboran Sea

Effects of Earthquakes on Buildings in the Ibero-Maghrebian Region

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