scholarly journals Evolution of Conduit Geometry and Eruptive Parameters During Effusive Events

2018 ◽  
Vol 45 (15) ◽  
pp. 7471-7480 ◽  
Author(s):  
A. Aravena ◽  
R. Cioni ◽  
M. de’ Michieli Vitturi ◽  
M. Pistolesi ◽  
M. Ripepe ◽  
...  
Keyword(s):  
Eruptive Parameters

scholarly journals Estimating eruptive parameters and related uncertainties for pyroclastic density currents deposits: worked examples from Somma-Vesuvius (Italy)

2020 ◽  
Vol 82 (9) ◽  
Author(s):  
Raffaello Cioni ◽  
Alessandro Tadini ◽  
Lucia Gurioli ◽  
Antonella Bertagnini ◽  
Maurizio Mulas ◽  
...  
Keyword(s):  
Worked Examples ◽  
Pyroclastic Density Currents ◽  
Density Currents ◽  
Eruptive Parameters

Standing waves in high speed lava channels: A tool for constraining lava dynamics and eruptive parameters

2020 ◽  
Vol 401 ◽  
pp. 106944
Author(s):  
Y. Le Moigne ◽  
J.M. Zurek ◽  
G. Williams-Jones ◽  
E. Lev ◽  
A. Calahorrano-Di Patre ◽  
...  
Keyword(s):  
High Speed ◽  
Standing Waves ◽  
Eruptive Parameters

scholarly journals Unravelling the links between seismo-acoustic signals and eruptive parameters: Etna lava fountain case study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mariangela Sciotto ◽  
Andrea Cannata ◽  
Michele Prestifilippo ◽  
Simona Scollo ◽  
David Fee ◽  
...  
Keyword(s):  
Time Series ◽  
Power Law ◽  
Seismic Velocity ◽  
Source Parameters ◽  
Seismic Energy ◽  
Power Laws ◽  
Geophysical Data ◽  
Time Interval ◽  
Lava Fountain ◽  
Eruptive Parameters

Abstract Deriving eruption source parameters from geophysical data is critical for volcano hazard mitigation, yet remains a challenging task in most volcanoes worldwide. In this work, we explored the temporal relationship between geophysical signals and eruptive parameters measured during six explosive episodes from the New South-East Crater of Mt. Etna (Italy). The quadratic reduced seismic velocity and pressure were calculated to track the temporal variation of volcanic elastic radiation, and the lava fountain height was estimated by thermal camera image processing. The temporal relationships between these geophysical and eruptive time series were studied. In particular, the first considered lava fountain exhibited a “clockwise hysteresis” pattern: higher seismic amplitude with respect to the fountain height during the waxing phase as compared to the waning phase. We also calculated the regression parameters for both linear and power laws, linking seismo-acoustic and eruptive time series. For the linear regressions, we found fairly constant values of the scaling factors in five out of six eruptive episodes, which can be considered as a promising step to derive eruption source parameters from geophysical data in real-time. Regarding power law regressions, a clear relationship was observed between the exponents determined for the power law linking quadratic reduced velocity and lava fountain height, and the time interval duration from the previous eruption. These results suggest that the condition of the uppermost part of the plumbing system (e.g. viscosity of residing magma and conduit conditions) play a key role in the seismic energy generation during the eruptions.

Andesitic Plinian eruptions at Mt. Ruapehu: quantifying the uppermost limits of eruptive parameters

2012 ◽  
Vol 74 (5) ◽  
pp. 1161-1185 ◽  
Author(s):  
Natalia Pardo ◽  
Shane Cronin ◽  
Alan Palmer ◽  
Jonathan Procter ◽  
Ian Smith
Keyword(s):  
Plinian Eruptions ◽  
Eruptive Parameters

Eruptive parameters and dynamics of the April 2015 sub-Plinian eruptions of Calbuco volcano (southern Chile)

2016 ◽  
Vol 78 (9) ◽  
Author(s):  
Angelo Castruccio ◽  
Jorge Clavero ◽  
Andrea Segura ◽  
Pablo Samaniego ◽  
Olivier Roche ◽  
...  
Keyword(s):  
Southern Chile ◽  
Plinian Eruptions ◽  
Eruptive Parameters ◽  
Calbuco Volcano
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