Volcanic ballistic projectile deposition from a continuously erupting volcano: Yasur Volcano, Vanuatu

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dc.citation.issue2
dc.citation.volume3
dc.contributor.authorFitzgerald RH
dc.contributor.authorKennedy BM
dc.contributor.authorGomez C
dc.contributor.authorWilson TM
dc.contributor.authorSimons B
dc.contributor.authorLeonard GS
dc.contributor.authorMatoza RS
dc.contributor.authorJolly AD
dc.contributor.authorGaraebiti E
dc.date.accessioned2024-03-12T20:41:02Z
dc.date.accessioned2024-07-25T06:47:39Z
dc.date.available2020-08-25
dc.date.available2024-03-12T20:41:02Z
dc.date.available2024-07-25T06:47:39Z
dc.date.issued2020-08-25
dc.description.abstractVolcanic Ballistic Projectiles (VBPs) are the main hazard to life and infrastructure from Strombolian eruptions. This eruption style is a tourist drawcard, exposing people to VBP hazard. Most of the research on VBPs to date has been focussed on understanding how they form and their trajectory. However, little focus has been placed on how they are spatially distributed within VBP fields or the inclusion of these data into hazard and risk assessments. In this study, we used a drone to image the east and south flanks of Yasur Volcano, Vanuatu, and cameras, infrasound, and seismicity to record explosions from 28 July to 2 August and 17 to 19 October 2016. We present the mapped spatial distribution of VBPs from the two trips, assessing how the VBP field changes with distance and direction from the vent, and how eruption dynamics influence these changes. We found that the VBP spatial density and median diameter decrease with distance from the crater. Spatial density was also found to vary with direction around the crater, with higher spatial densities found in the S-SSE than other directions. Combined with observations of explosions, we attribute the changes in spatial density to explosion directionality. Our evidence for directionality results in considerable variation in summit VBP hazard and is an important, but by no means the sole, consideration for VBP hazard and risk assessments.
dc.description.confidentialfalse
dc.format.pagination183-204
dc.identifier.citationFitzgerald RH, Kennedy BM, Gomez C, Wilson TM, Simons B, Leonard GS, Matoza RS, Jolly AD, Garaebiti E. (2020). Volcanic ballistic projectile deposition from a continuously erupting volcano: Yasur Volcano, Vanuatu. Volcanica. 3. 2. (pp. 183-204).
dc.identifier.doi10.30909/vol.03.02.183204
dc.identifier.eissn2610-3540
dc.identifier.elements-typejournal-article
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70886
dc.publisherPresses universitaires de Strasbourg
dc.relation.isPartOfVolcanica
dc.rights(c) The author/sen
dc.rights.licenseCC BY 4.0en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectVolcanic ballistics
dc.subjectBallistic distribution
dc.subjectUAV mapping
dc.subjectYasur Volcano
dc.subjectBallistic hazard assessment
dc.titleVolcanic ballistic projectile deposition from a continuously erupting volcano: Yasur Volcano, Vanuatu
dc.typeJournal article
pubs.elements-id452188
pubs.organisational-groupOther
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