Results 11 to 20 of about 9,762 (210)

Tephra fall impacts to buildings: the 2017–2018 Manaro Voui eruption, Vanuatu

Frontiers in Earth Science
Building damage from tephra falls can have a substantial impact on exposed communities around erupting volcanoes. There are limited empirical studies of tephra fall impacts on buildings, with none on tephra falls impacting traditional thatched timber ...
Susanna F. Jenkins, Ame McSporran, Thomas M. Wilson, Carol Stewart, Graham Leonard, Sandrine Cevuard, Esline Garaebiti   +6 more
doaj   +5 more sources

Tephra fall clean-up in urban environments [PDF]

Journal of Volcanology and Geothermal Research, 2015
Abstract Tephra falls impact urban communities by disrupting transport systems, contaminating and damaging buildings and infrastructures, and are potentially hazardous to human health. Therefore, prompt and effective tephra clean-up measures are an essential component of an urban community's response to tephra fall. This paper reviews case studies of
Hayes, J.L., Wilson, T.M., Magill, C.
openaire   +4 more sources

Automating tephra fall building damage assessment using deep learning [PDF]

Natural Hazards and Earth System Sciences
In the wake of a volcanic eruption, the rapid assessment of building damage is paramount for effective response and recovery planning. Uncrewed aerial vehicles, UAVs, offer a unique opportunity for assessing damage after a volcanic eruption, with the ...
E. Tennant, S. F. Jenkins, V. Miller, R. Robertson, B. Wen, S.-H. Yun, B. Taisne   +6 more
doaj   +4 more sources

Reconstructing tephra fall deposits via ensemble-based data assimilation techniques [PDF]

Geoscientific Model Development, 2023
In recent years, there has been a growing interest in ensemble approaches for modelling the atmospheric transport of volcanic aerosol, ash, and lapilli (tephra).
L. Mingari, L. Mingari, A. Costa, G. Macedonio, A. Folch   +4 more
doaj   +3 more sources

Agriculture and forestry impact assessment for tephra fall hazard

Volcanica, 2021
Developing approaches to assess the impact of tephra fall to agricultural and forestry systems is essential for informing effective disaster risk management strategies.
Heather Craig, Thomas Wilson, Christina Magill, Carol Stewart, Alec J. Wild   +4 more
doaj   +5 more sources

Uncertainty Quantification of Eruption Source Parameters Estimated From Tephra Fall Deposits

Geophysical Research Letters, 2022
AbstractUncertainty quantification (UQ) in eruption source parameters, like tephra volume, plume height, and umbrella cloud radius, is a challenge for volcano scientists because tephra deposits are often sparsely sampled due to burial, erosion, and related factors.
R. Constantinescu, J. T. White, C. B. Connor, A. Hopulele‐Gligor, S. Charbonnier, J.‐C. Thouret, J. M. Lindsay, D. Bertin   +7 more
openaire   +4 more sources

Tephra fall at Tungurahua Volcano (Ecuador) – 1999-2014: An Example of Tephra Accumulation from a Long-lasting Eruptive Cycle

Geofísica Internacional, 2015
El volcán Tungurahua despertó en 1999 después de 75 años de quietud, y su actividad continua hasta el presente (2015). Luego de quince años de erupciones, casi 0.13 km³ de tefra han sido emitidos y depositados principalmente hacia el oeste y suroeste del
Jorge Bustillos A., Jorge E. Romero, Liliana Troncoso, Alicia Guevara C.   +3 more
doaj   +4 more sources

Disruption of tephra fall deposits caused by lava flows during basaltic eruptions [PDF]

Bulletin of Volcanology, 2015
Observations in the USA, Iceland and Tenerife, Canary Islands reveal how processes occurring during basaltic eruptions can result in complex physical and stratigraphic relationships between lava and proximal tephra fall deposits around vents. Observations illustrate how basaltic lavas can disrupt, dissect (spatially and temporally) and alter sheet-form
Brown, R. J., Thordarson, T., Self, S., Blake, S.   +3 more
openaire   +4 more sources

Timber-framed building damage from tephra fall and lahar: 2015 Calbuco eruption, Chile [PDF]

Journal of Volcanology and Geothermal Research, 2019
Abstract Assessing the damage to buildings from volcanic eruptions is an important aspect of volcanic risk assessment and management. However, there is a limited empirical evidence base to draw upon when describing the relation between volcanic hazard intensity and resulting physical damage.
Josh L. Hayes, Rodrigo Calderón B, Natalia I. Deligne, Susanna F. Jenkins, Graham S. Leonard, Ame M. McSporran, George T. Williams, Thomas M. Wilson   +7 more
openaire   +4 more sources

The thickness, volume and grainsize of tephra fall deposits

Bulletin of Volcanology, 1989
An improved empirical method for the plotting of field data and the calculation of tephra fall volumes is presented. The widely used “area” plots of ln(thickness) against ln(isopach area) are curved, implying an exponential thinning law. Use of ln(thickness)−(area)1/2 diagrams confirm the exponential dependence of many parameters (e.g.
openaire   +4 more sources