Abstract. The Azores are an active volcanic region that offers exceptional conditions for nature-based tourism, one of the main axes economic growth in archipelago. A future eruption may have long-term consequences to this sector. Therefore, it is fundamental assess its vulnerability hazards order try mitigate associated risk. This study proposes a new approach assessing impact explosive erupti...

Abstract The Aristarchus plateau hosts a diversity of volcanic features, including the largest pyroclastic deposit on Moon, sinuous rille and intrusive extrusive examples evolved, Th-rich silicic lithologies. We provide an overview previous remote-sensing measurements new analyses Diviner Lunar Radiometer thermal IR data, Prospector Gamma Ray Spectrometer Th Chang’e-5 Microwave hyperspectral mu...

Abstract Sedimentary structures deposited from dilute pyroclastic currents are largely dominated by the products of metre‐scale dune bedforms containing backset lamination. Since first seminal works in 1970s, vast majority literature called these antidunes and chutes‐and‐pools. This consensus led to a loose terminology, either as descriptive terms for beds or an interpretation hydrodynamic cond...

Volcanic eruptions are often very destructive events, having a massive impact on the natural and human environment. In order to mitigate the effect of volcanic hazards such as pyroclastic flows, lahars and tsunamis it is necessary to closely monitor volcanoes. Ground surface deformation is recognised as a reliable indicator of an impending eruption and can give clues to magmatic processes at de...

[1] Abrasion and comminution of pumice clasts during the propagation of pyroclastic flows have long been recognized as a potential source for the enhanced production of volcanic ash, however, their relative importance has eluded quantification. The amount of ash produced in situ can potentially affect runout distance, deposit sorting, the volume of ash introduced in the upper atmosphere, and in...

*Correspondence: Antonio Costa, Istituto Nazionale di Geofisica e Vulcanologia, Via D. Creti 12, Bologna, Italy e-mail: [email protected] Super-eruptions, orders of magnitude larger than biggest eruptions experienced in historic times, have devastated wide areas by pyroclastic flows, covered continent-size areas by ash fallout, and injected large quantities of aerosols into the stratosph...

Abstract In many geotechnical applications, especially in the study of weather-induced landslides, a reliable soil hydraulic characterization unsaturated conditions is required. Currently, experimental techniques that neglect hysteresis represent greatest limitation to landslide forecasting. this paper, procedure obtain an on natural pyroclastic samples proposed and verified. The approach enabl...