The fragmentation-induced fluidisation of pyroclastic density currents [PDF]
Nature Communications, 2023 Pyroclastic density currents (PDCs) are the most lethal volcanic process on Earth. Forecasting their inundation area is essential to mitigate their risk, but existing models are limited by our poor understanding of their dynamics.
Eric C. P. Breard +5 more
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Identifying rheological regimes within pyroclastic density currents [PDF]
Nature CommunicationsPyroclastic density currents (PDCs) are the most lethal of all volcanic hazards. An ongoing challenge is to accurately forecast their run-out distance such that effective mitigation strategies can be implemented.
Thomas. J. Jones +4 more
doaj +4 more sources
Reconciling Pyroclastic Flow and Surge: the Multiphase Physics of Pyroclastic Density Currents. [PDF]
Earth and Planetary Science Letters, 2002 Two end-member types of pyroclastic density current are commonly recognized: pyroclastic surges are dilute currents in which particles are carried in turbulent suspension and pyroclastic flows are highly concentrated flows.
Burgisser, Alain, W. Bergantz, George
core +8 more sources
Inverting sediment bedforms for evaluating the hazard of dilute pyroclastic density currents in the field [PDF]
Scientific Reports, 2021 Pyroclastic density currents are ground hugging gas-particle flows associated to explosive volcanic eruptions and moving down a volcano's slope, causing devastation and deaths.
Pierfrancesco Dellino +4 more
doaj +2 more sources
The impact of pyroclastic density currents duration on humans: the case of the AD 79 eruption of Vesuvius [PDF]
Scientific Reports, 2021 Pyroclastic density currents are ground hugging gas-particle flows that originate from the collapse of an eruption column or lava dome. They move away from the volcano at high speed, causing devastation.
Pierfrancesco Dellino +4 more
doaj +2 more sources
The Relative Effectiveness of Empirical and Physical Models for Simulating the Dense Undercurrent of Pyroclastic Flows under Different Emplacement Conditions [PDF]
Frontiers in Earth Science, 2017 High concentration pyroclastic density currents (PDCs) are hot avalanches of volcanic rock and gas and are among the most destructive volcanic hazards due to their speed and mobility.
Sarah E. Ogburn, Eliza S. Calder
doaj +4 more sources
A new hazard scenario at Vesuvius: deadly thermal impact of detached ash cloud surges in 79CE at Herculaneum [PDF]
Scientific Reports, 2023 Diluted pyroclastic density currents are capable to cause huge devastation and mortality around volcanoes, and temperature is a crucial parameter in assessing their lethal power.
Alessandra Pensa +3 more
doaj +2 more sources
Long-term volcanic hazard assessment on El Hierro (Canary Islands) [PDF]
Natural Hazards and Earth System Sciences, 2014 Long-term hazard assessment, one of the bastions of risk-mitigation programs, is required for land-use planning and for developing emergency plans.
L. Becerril +5 more
doaj +4 more sources
Residential building and occupant vulnerability to pyroclastic density currents in explosive eruptions [PDF]
Natural Hazards and Earth System Sciences, 2007 A major hazard during the eruption of explosive volcanoes is the formation of pyroclastic density currents (PDCs). Casualties and physical building damage from PDCs are caused by the temperature, pressure, and particle load of the flow.
R. Spence +6 more
doaj +4 more sources
Volcano generated tsunami recorded in the near source [PDF]
Nature CommunicationsVolcano sector collapse and pyroclastic density currents are common phenomena on active volcanoes and potentially a fatal source of tsunami waves which constitute a serious hazard for local as well as distant coastal population.
M. Ripepe, G. Lacanna
doaj +2 more sources