explosive eruptions
Explosive Eruptions With Little Warning: Experimental Petrology and Volcano Monitoring Observations From the 2014 Eruption of Kelud, Indonesia
... our explosive eruption, Kelud showed limited evidence for major deformation up to three months ...an explosive eruption is particularly hazardous, requiring fast decision making and evacuations to take ...
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Earth’s rotation variability triggers explosive eruptions in subduction zones
... 620 explosive eruptions with volcanic explosiv- ity index (VEI) ≥3 since AD 1850 to present (Palladino and Sottili 2014; Siebert and Simkin 2002) based on the Smithsonian Institution catalogue, Global ...
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Magma decompression rates during explosive eruptions of Kīlauea volcano, Hawai'i, recorded by melt embayments
... historical eruptions, where discharge rates and height of the eruptive jet/column have been observed, these observations do not therefore provide direct information on the conditions of magma ascent at ...past ...
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Evidence for Recent Large Magnitude Explosive Eruptions at Damavand Volcano, Iran with Implications for Volcanic Hazards
... major explosive eruptions. Large explosive eruptions are commonly followed immediately by periods of enhanced lava flow of dome extrusion building up lava shields, lava cones or dome ...and ...
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Homemade ashmeter: a low-cost, high-efficiency solution to improve tephra field-data collection for contemporary explosive eruptions
... repetitive explosive eruptions such as the 2012 Tungurahua or Etna ...Plinian eruptions in distal areas, such as the 2011 Cordón Caulle eruption in Chile that produced small amounts of ash fallout in ...
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Regional and global under-recording of large explosive eruptions in the last 1000 years
... 4) explosive eruptions are assessed regionally over the last 1000 years, using the LaMEVE ...large eruptions, it does not swamp differences in recording probabilities across times and ...
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Challenges of determining frequency and magnitudes of explosive eruptions even with an unprecedented stratigraphy
... more explosive sub-Plinian and Plinian eruptions have occurred in the past that have been destroyed to the south and are not preserved in the tephra record to the north and northeast of ...highly ...
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Experimental insights into pyroclast‐ice heat transfer in water‐drained, low pressure cavities during subglacial explosive eruptions
... convective steam condensation and, where pyroclasts contact the ice sur- face, by pyroclast-ice heat transfer across fl uid contact fi lms. The result- ing vertical ice melt rate is the main control on the time taken for ...
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Generation, ascent and eruption of magma on the Moon:new insights into source depths, magma supply, intrusions and effusive/explosive eruptions (Part 2: Predicted Emplacement Processes and Observations)
... basaltic magma on the Moon to develop new insights into magma source depths, supply processes, transport and emplacement mechanisms via dike intrusions, and effusive and explosive eruptions. We make ...
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How many explosive eruptions are missing from the geologic record? Analysis of the quaternary record of large magnitude explosive eruptions in Japan
... 686 eruptions are larger than or equal to VEI 4 (Table ...699 eruptions are larger than or equal to eruption magnitude 4 (Table 2); eruption mag- nitude of the remaining one VEI 4 eruption is ...Smaller ...
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Geochemistry of the Phlegraean Fields (Italy) proximal sources for major Mediterranean tephras: Implications for the dispersal of Plinian and co ignimbritic components of explosive eruptions
... The micron-beam major EMPA and trace LA-ICP-MS element glass dataset allows us to: a Distinguish between tephra units produced from the Phlegraean Fields before and during the CI eruptio[r] ...
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Generation, ascent and eruption of magma on the Moon:new insights into source depths, magma supply, intrusions and effusive/explosive eruptions (Part 1: Theory)
... form eruptions, while others will stall and solidify in the crust and ...favor eruptions on the lunar nearside, and intrusions on the ...surface eruptions, while others will solidify in the crust and ...
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Experimental insights into pyroclast‐ice heat transfer in water‐drained, low pressure cavities during subglacial explosive eruptions
... At higher steam to sand ratios, when sand caps did not become established, vertical.. Errors in the ratio of vertical melting to horizontal melting are.[r] ...
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Residential building and occupant vulnerability to pyroclastic density currents in explosive eruptions
... However, Baxter et al. (2005) have summarised the sparse evidence for human survival inside buildings and studied the impacts of PDCs during the eruption of the Soufriere Hills volcano on Montserrat to provide a detailed ...
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Exposure-based risk assessment and emergency management associated with the fallout of large clasts at Mount Etna
... explosive eruptions (e.g. large lava fountains and small Vul- canian events), ballistic blocks are confined in very proximal areas (1–2 km from vent) (Calvari and Pinkerton, 2002), but large clasts can fall ...
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Kilauea Eruptions and the Hawaiian Archipelago
... eruptions; years of lava flow at Kilauea provide an apt illustration of slow buildup thousands of feet in elevation. “Hawaiian” is now the name for this kind of low-volume, continuous, effusive volcanic type ...
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PPT 6 Volcanic Eruptions and Hazards.ppt
... – Where the magma just trickles out of the volcano (lava flow).... Explosive Eruptions.[r] ...
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Global database on large magnitude explosive volcanic eruptions (LaMEVE)
... of explosive eruptions; values range from 0 (gentle) to 8 ...an explosive eruption, the VEI incorporates multiple criteria for assigning a ...(ancient eruptions) or a combination of plume ...
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The size range of bubbles that produce ash during explosive volcanic eruptions
... Volcanic eruptions can produce ash particles with a range of sizes and ...well-characterized eruptions of different explosivities and magma compositions and indicate that bubble size distributions (BSDs) ...
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Characterisation of the Quaternary eruption record: Analysis of the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database
... in explosive volcan- ism at the end of the last ice age in glaciated areas; this trend is not observed in areas unaffected by ...The eruptions of the largest magnitudes, ...of explosive ...
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