The Agadez city is built on the faulted and fractured sandstones formation of “Agadez Sandstones”, which deposit in unconformity Precambrian basement Aïr Mountain. present study focuses geotechnical risk assessment geological origin building fracturation city. A methodological approach integrating measurement fractures planes affecting buildings their statistical analysis has been implemented. ...

Volcanoes are unstable structures that deform laterally and frequently experience mass wasting events. Hydrothermal alteration is often invoked as a mechanism contributes significantly to volcano instability. We present study combines laboratory experiments, geophysical data, large-scale numerical modeling better understand the influence of on stability, using La Soufrière de Guadeloupe (Easter...

Geophysical phenomena are observable events with spatiotemporal characteristics. These phenomena can have spatial extent and shape but the intensities are generally not homogeneous within this spatial extent. These phenomena also evolve, grow and perish over time. Therefore, developing a robust detection algorithm for geophysical phenomena is difficult and challenging. This paper presents a hyb...

Abstract An integrated approach that combines geophysical surveys and numerical simulations is proposed to study the processes govern fluid flow along active fault zones. It based on reconstruction of architecture investigated system, as well identification possible paths for migration, according distribution parameters retrieved by multi-methodological prospecting. The aim establish, thanks co...

Natural disasters are still insufficiently studied and understood within the scope of public health in this country, with impacts in the short and long term. The scope of this article is to analyze the relationship between disasters and their impact on health based on disaster data recorded in the country. The methodology involved the systematization of data and information contained in the Bra...

Abstract. A natural hazard is a naturally occurring extreme event that has negative effect on people and society or the environment. Natural hazards may have severe implications for human life can potentially generate economic losses damage ecosystems. better understanding of their major causes, probability occurrence, consequences enables to be prepared save lives as well invest in adaptation ...