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Tephra segregation profiles based on disdrometer observations and tephra dispersal modeling: Vulcanian eruptions of Sakurajima volcano, Japan
The profile of tephra concentration along a volcanic plume (i.e., the tephra segregation profile) is an important source parameter for the simulation...
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Laboratory tests to understand tephra sliding behaviour on roofs
Following explosive eruptions, loading from tephra fall deposits can lead to roof collapse. However, the load may be reduced significantly by tephra...
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Tephra Sampled from the Intraplate-Oceanic Island Volcano, Cumbre Vieja: The 2021 Eruption
AbstractComprehensive mineralogical and geochemical studies were conducted in application to a representative sample of tephra from Cumbre Vieja...
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Paleomagnetic evidence for episodic construction of the Mamiyadake tephra ring
Tephra rings that surround maar craters are typically inferred from field observations to have been emplaced rapidly over a time period of days to...
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Sulfur in the Tephra of the ca. 1500 BP Opala Eruption, Kamchatka
AbstractSulfur-containing ejecta of Plinian-type eruptions can be transported to great distances in gas pores of ash particles. The mean...
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A quantitative assessment of crop vulnerability to tephra hazard at Tungurahua volcano, Ecuador: understanding the effect of volcanic and biological factors
Crops are regularly impacted by tephra from explosive volcanic eruptions, causing significant economic losses and jeopardising farmers’ livelihood at...
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Two sources of uncertainty in estimating tephra volumes from isopachs: perspectives and quantification
Calculating the tephra volume is important for estimating eruption intensity and magnitude. Traditionally, tephra volumes are estimated by...
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Assessing volumes of tephra fallout deposits: a simplified method for data scarcity cases
A new method for assessing volumes of tephra deposits based on only two thickness data is presented. It is based on the assumptions of elliptical...
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Historical explosive activity of Mount Melbourne Volcanic Field (Antarctica) revealed by englacial tephra deposits
Five tephra layers named BRH1 to 5 were sampled in an ice cliff located on the north-eastern flank of Mount Melbourne (northern Victoria Land,...
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Reappraisal of the volcanic source of the Rocourt Tephra, a widespread chronostratigraphic marker aged ca. 78–80 ka in Western Europe
The Rocourt Tephra (RT) is a widespread stratigraphic marker distributed in Germany, Belgium, and the Netherlands , where it is used for stratigraphic...
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Creating a digital database of tephra fallout distribution and frequency in Japan
Tephra fallout is a potential hazard to livelihoods, critical infrastructure, and health, even in areas that are far from volcanoes. Therefore, it is...
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Long-Term Probabilistic Volcanic Hazard Assessment for Tephra Fallout from Neapolitan Volcanoes on Southern Italy
Somma-Vesuvius, Campi Flegrei, and Ischia are three active volcanoes in the Neapolitan Area (Italy). In this work, we evaluated the combined tephra...
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Tephra dispersal and composition reveal the explosive onset of a large basaltic fissure eruption: Timanfaya, Lanzarote, 1730–1736 CE
Basaltic fissure eruptions are chiefly characterized by sizable emissions of lava flows and volcanic gases, posing significant hazards. However, such...
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Origin of Çardak Tephra, SW Turkey
The origin of the Çardak tephras remains a mystery. Two different remarks on this issue were presented by Kazancı et al. in Glob Planetary Change...
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The spatiotemporal evolution of compound impacts from lava flow and tephra fallout on buildings: lessons from the 2021 Tajogaite eruption (La Palma, Spain)
The simultaneous or sequential occurrence of several hazards—be they of natural or anthropogenic sources—can interact to produce unexpected compound ...
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A palaeoecological study investigating the impacts of multiple tephra depositions on a lacustrine ecosystem in Northeast China, using diatoms as environmental indicators
Tephra layers are common in lake sediments and although they have often been used as chronological controls, few studies have investigated the...
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Real-time probabilistic assessment of volcanic hazard for tephra dispersal and fallout at Mt. Etna: the 2021 lava fountain episodes
Starting from February 2021, Mt. Etna (Italy) experienced a period of intense explosive activity with 17 lava fountain episodes between 16 February...
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Investigation of geomechanical properties of tephra relevant to roof loading for application in vulnerability analyses
Tephra fall can lead to significant additional loading on roofs. Understanding the relevant geomechanical properties of tephra is critical when...
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Modelling the transport and deposition of ash following a magnitude 7 eruption: the distal Mazama tephra
Volcanic ash transport and dispersion models (VATDMs) are necessary for forecasting tephra dispersal during volcanic eruptions and are a useful tool...
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The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: its magma, eruption, and implications for past and future activity
Between 38.5 ka cal BP and 32.4 ka cal BP, a dacitic Volcanic Explosivity Index 5 eruption at Misti volcano emplaced the Sacarosa tephra-fall...
