NDLI: A probabilistic assessment of eruption recurrence on Taveuni volcano, Fiji

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Comments on the article “Erosion calderas: origins, processes, structural and climatic control“ by Karatson D., Thouret J.-C., Moriya I., Lomoschitz A. (1999) Bull Volcanol 61 :17 4—193

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Smithsonian Institution's Global Volcanism Network

Bulletin of Volcanology : Volume 63, Issue 2-3, June 2001

Bulletin of Volcanology : Volume 63, Issue 1, May 2001

Bulletin of Volcanology : Volume 62

Bulletin of Volcanology : Volume 61

Bulletin of Volcanology : Volume 60

Bulletin of Volcanology : Volume 59

Bulletin of Volcanology : Volume 58

A probabilistic assessment of eruption recurrence on Taveuni volcano, Fiji

Content Provider	Springer Nature Link
Author	Cronin, Shane J. Bebbington, Mark Lai, Chin
Copyright Year	2001
Abstract	Taveuni, a 437-km2 oceanic intraplate volcano in the northeastern Fiji Group, has been active throughout the Holocene and currently has a rapidly growing population. Alkali basalt magmas were erupted through monogenetic vents at constantly shifting locations along a SW-striking rift zone. Hence, quantification of volcanic hazard, in both spatial and temporal terms, is of great importance for disaster management and development agencies. Unlike previous probabilistic assessments of hazards in volcanic fields, the activity on Taveuni is both more recent and on a lesser spatial scale. This enables us to focus our attention on different aspects of the analysis. In particular, we propose a first attempt at dealing with the imprecision and inaccuracy inherent in volcanic eruption age data obtained via radiocarbon dating. Our results indicate that volcanic activity on Taveuni has a tendency to occur in episodes. If this tendency is strong, the present hazard may be considerably greater than otherwise supposed. We also confirm an apparent tendency for the volcanic activity to migrate southwards along the Taveuni rift axis towards the most densely settled area, and also the widest axial vent zone. This indicates that the risk from volcanic activity is again higher than might otherwise be supposed. We estimate a Taveuni-wide probability of0.56 for renewed activity within the next 50 years. Such quantitative results can be utilised within loss estimations during the planning stages of new infrastructure and business developments at various locations on the island.
Starting Page	274
Ending Page	288
Page Count	15
File Format	PDF
ISSN	02588900
Journal	Bulletin of Volcanology
Volume Number	63
Issue Number	4
e-ISSN	14320819
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-06-02
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geology Geophysics/Geodesy Mineralogy Sedimentology
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology

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