Journal
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
Volume 286, Issue -, Pages 93-100Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jvolgeores.2014.08.020
Keywords
Tambora; Eruption volume; Tephra fall deposits; Tephra dispersion; Deep sea deposits
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Funding
- AXA Research Fund [SM6536]
- European Research Council (VOLDIES) Advanced grant
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Volume estimates of the 1815 Tambora eruption were re-analysed using new ash thickness data and new methods, giving a range of possible volumes for the different eruption phases. Volume calculations include ash fall extrapolation and caldera size approximations, as well as volume estimates from mass eruption rates and eruption duration, to find the most likely range of volumes consistent with the different methods and possible eruption dynamics. The results give a total volume of about 41 +/- 4 km(3) DRE, made of 23 +/- 3 km(3) DRE ash fall and 18 +/- 6 km(3) DRE pyroclastic flows. The ash fall volume can be further divided into 11 +/- 2 km(3) DRE Plinian ash fall and 12 +/- 4 km(3) DRE co-ignimbrite, making the Plinian ash fall larger than previously assumed, and more intense due to a higher mass eruption rate of 2 x 10(9) kg/s. (C) 2014 Elsevier B.V. All rights reserved.
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