Volcanological study of the great Tambora eruption of 1815.

S. Self, M. R. Rampino, M. S. Newton, J. A. Wolff

Research output: Contribution to journalArticle

Abstract

By a conservative estimate, 175km 3 of nepheline-normative trachyandesitic pyroclastic materal (equivalent to approx 50km 3 of dense rock) was erupted in 24h. A 6X7km caldera, approx 1km deep, formed at the end of the pyroclastic flow phase; caldera volume closely matches that of magma ejected. Plinian and co-ignimbrite ash fall > 1cm thick covered > 500 000km 2 of the Java Sea and surrounding islands, accounting for >2/3 of the magma volume erupted. This distal tephra is known only from 1815 reports, indicating that some great eruptions, especially those from island volcanoes, may be virtually undetectable in the geologic record without supporting information, such as deep-sea core data. Land-based volume estimates may be insufficient to characterize eruption magnitude in many cases.-from Authors

Original languageEnglish (US)
Pages (from-to)659-663
Number of pages5
JournalGeology
Volume12
Issue number11
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • Geology

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