A new perspective on eruption data completeness: insights from the First Recorded EruptionS in the Holocene (FRESH) database

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dc.citation.volume431
dc.contributor.authorBurgos V
dc.contributor.authorJenkins SF
dc.contributor.authorBebbington M
dc.contributor.authorNewhall C
dc.contributor.authorTaisne B
dc.date.accessioned2023-11-02T22:18:14Z
dc.date.accessioned2023-11-03T04:55:21Z
dc.date.available2022-08-19
dc.date.available2023-11-02T22:18:14Z
dc.date.available2023-11-03T04:55:21Z
dc.date.issued2022-11
dc.description.abstractIdentifying the most complete (best recorded) portion of an eruption record is essential before estimating eruption recurrence and probability. This is typically achieved by plotting cumulative eruptions through time. Here, we evaluate eruption data completeness from a new perspective, by compiling the first dated Holocene eruption from each volcano in the Volcanoes of the World (VOTW) database (i.e., First Recorded EruptionS in the Holocene (FRESH)). In our first analysis, we compared the subregional distribution of FRESH with time using Kolmogorov-Smirnov (K[sbnd]S) test. We found that the eruption record was best categorised into 31 regions containing subregions with similar degrees of completeness. This opened the way to define new Relative Completeness Date(s) (RCD) as a function of eruption size, volcanic characteristics, and region, by identifying multiple points in the record where the root-mean-square (RMS) level changes abruptly, corresponding to a gap, a decrease or increase in the FRESH rate. Regional RCDs in the Common Era (CE) range from as recently as 1964 CE in the Indian Ocean (southern) to 200 CE in Middle East and Western Indian Ocean. In contrast, some regions like Kamchatka and Mainland Asia have near-constant rates of FRESH over the last 12,000 years, making RCDs impossible to assign. We present and make available our FRESH database, and describe and implement an automatic approach to detect RCDs across our newly defined volcanic regions. We suggest that the different degrees of completeness observed at a regional scale can be explained by: socio-historical events, access to geological studies, submarine volcanism, and/or remoteness. The FRESH database, together with the new regions and proposed RCDs can be used in future studies to estimate eruption probabilities at volcanoes without Holocene records and identify which subregions are most likely to produce a FRESH in the future.
dc.description.confidentialfalse
dc.edition.editionNovember 2022
dc.identifier.citationBurgos V, Jenkins SF, Bebbington M, Newhall C, Taisne B. (2022). A new perspective on eruption data completeness: insights from the First Recorded EruptionS in the Holocene (FRESH) database. Journal of Volcanology and Geothermal Research. 431.
dc.identifier.doi10.1016/j.jvolgeores.2022.107648
dc.identifier.eissn1872-6097
dc.identifier.elements-typejournal-article
dc.identifier.issn0377-0273
dc.identifier.number107648
dc.identifier.piiS0377027322001792
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/69026
dc.languageEnglish
dc.publisherElsevier BV
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0377027322001792
dc.relation.isPartOfJournal of Volcanology and Geothermal Research
dc.rights(c) The author/s CC BY-NC-NDen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectChange points
dc.subjectData completeness
dc.subjectFirst recorded eruptions
dc.subjectGVP
dc.subjectRecording rate
dc.subjectRegional records
dc.subjectVOTW database
dc.titleA new perspective on eruption data completeness: insights from the First Recorded EruptionS in the Holocene (FRESH) database
dc.typeJournal article
pubs.elements-id455737
pubs.organisational-groupOther
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