Advertisement

Bulletin of Volcanology

, Volume 56, Issue 5, pp 321–325 | Cite as

Redefining active volcanoes: a discussion

  • Alexandru Szakács
Original Paper

Abstract

The analysis of the current definitions of active volcanoes indicates that they are empirical, conventional, inaccurate, nongeological, and arbitrarily constraining. Redefinition is therefore needed. One possible approach is to refine the current empirical definitions. A statistically reasonable and practical redefinition using a geologically based time convention-Holocene or 10000 years-is suggested. A set of time conditions according to volcano typology-i.e. 1000; 10000 and 100000 years for high-frequency basaltic shields, andesitic-dacitic composite volcanoes and low-frequency large silicic calderas, respectively-as further refinement of the empirical definition is also envisaged. Devising a phenomenological definition as a theoretical approach is another possibility, but in practice extant “diagnostic” means are still unsatisfactory to discriminate accurately between dormant and extinct volcanoes. As a consequence of the redefinition, a classification of volcanoes according to their eruptive status is proposed. Redefinition of active volcanoes might increase accuracy in the usage of basic terms in volcanology and influence volcanic hazard assessment and risk mitigation projects.

Key words

Active volcanoes Definition Conceptual volcanology 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Aramaki S (1991) Hazardous volcanic eruptions in Japan. Episodes 14, pp 264–268Google Scholar
  2. Brousse R, Lefevre C (1990) Volcanisme en France et en Europe limitrophe. Masson, Paris, pp 1–263Google Scholar
  3. Decker R, Decker B (1982) Introduction to volcanoes and the Earth's interior. Readings from Scientific American, WH Freeman, San Francisco, pp 3–5Google Scholar
  4. Newhall CG, Dzurisin D (1988) Historical unrest at large calderas of the world. USGS Bulletin 1855, pp 1–1108Google Scholar
  5. Simkin T, Siebert L (1984) Explosive eruptions in space and time: Durations, intervals, and a comparison of the world's active volcanic belts. In: Explosive volcanism: Inception, evolution and hazards. Studies in Geophysics, National Academy Press, Washington DC, pp 110–121Google Scholar
  6. Smith RL, Luedke RC (1984) Potentially active volcanic lineaments and loci in western conterminous United States. In: Explosive volcanism: Inception, evolution and hazards. Studies in Geophysics, National Academy Press, Washington D.C., pp 47–66Google Scholar
  7. Smithsonian Institution (1989) Global volcanism 1975–1985. Prentice Hall, New Jersey, pp 1–655Google Scholar
  8. Szakács A (1991) Redefining active volcanoes. Some proposals. International Conference on active volcanoes and risk mitigation Abstracts, NaplesGoogle Scholar
  9. Szakács A (1994) Can we distinguish between dormant and extinct volcanoes? Colima Volcano Fourth International Meeting, Abstracts, pp 43–44, ColimaGoogle Scholar
  10. Tilling RI (1989) Volcanic hazards and their mitigation: Progress and problems. American Geophysical Union, Reviews of Geophysics 27, pp 237–269Google Scholar
  11. Walker GPL (1974) Volcanic hazards and the prediction of volcanic eruptions. In: Funnell BM (ed) Prediction of geological hazards, Geological Society of London, Miscellaneous Paper 3, pp 23–41Google Scholar

Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • Alexandru Szakács
    • 1
  1. 1.Institutul Geologic al RomanieiBucuresti 32Romania

Personalised recommendations