Results 1 to 10 of about 1,217 (152)

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

open access: yesFrontiers 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, Thomas M Wilson
exaly   +6 more sources

Residential building and occupant vulnerability to tephra fall [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2005
Plinian and subplinian volcanic eruptions can be accompanied by tephra falls which may last hours or days, posing threats to people, buildings and economic activity. Numerous historical examples exist of tephra damage and tephra casualties.
R. J. S. Spence   +4 more
doaj   +7 more sources

Tephra fall clean-up in urban environments [PDF]

open access: yesJournal 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
Josh L Hayes   +2 more
exaly   +5 more sources

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

open access: yesNatural 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   +6 more
doaj   +5 more sources

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

open access: yesBulletin 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
Thorvaldur Thordarson   +2 more
exaly   +4 more sources

Distribution and Eruptive Volume of Aso-4 Pyroclastic Density Current and Tephra Fall Deposits, Japan: A M8 Super-Eruption

open access: yesFrontiers in Earth Science, 2020
Estimations of the distribution and eruptive volume of large-scale pyroclastic density current (PDCs) and tephra fall deposits are essential for evaluation of the affected area, long-term volcanic hazards assessments, volcanic activity, and geophysical ...
Shinji Takarada, Hideo Hoshizumi
exaly   +3 more sources

Agriculture and forestry impact assessment for tephra fall hazard

open access: yesVolcanica, 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   +4 more
doaj   +5 more sources

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

open access: yesGeoscientific 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   +4 more
doaj   +6 more sources

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

open access: yesGeofísica 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.   +3 more
doaj   +4 more sources

Determining tephra fall deposit thickness in sedimentary record from magnetic susceptibility curve: Example of four Ethiopian tephras

open access: yesGeochemistry, Geophysics, Geosystems, 2004
The ejecta volume associated to a volcanic eruption is commonly estimated by extrapolating the exponential thinning relations beyond the tephra fall deposit thickness preserved in the sedimentary record. The thickness of a tephra is usually determined visually, eventually including the counting of the volcanic grains to take into account the vertical ...
Pierre Rochette
exaly   +2 more sources

Home - About - Disclaimer - Privacy