<p>The Volcanoes of the World (VOTW) database is the most comprehensive collection of data describing the world’s volcanoes and their eruptions. The majority of data within the VOTW are available through the Global Volcanism Program website (<a href="https://volcano.si.edu/">https://volcano.si.edu/</a>). The VOTW has developed through more than five decades and documents all of the world’s known Holocene volcanoes and many Pleistocene volcanoes. The data types for every volcano in the VOTW include the following: location information, synonyms, subfeatures, general description, eruptive history, references, tectonic setting, and images. Starting around 1968, volcanic activity has been described in narrative reports published under the Bulletin of the Global Volcanism Network. Volcanoes that have been active since 2000 have additional short, narrative descriptions of eruptive activity that are published more frequently as the Smithsonian/United States Geological Survey Weekly Volcanic Activity Report. Volcanic rock samples composing part of the Smithsonian Institution’s National Rock and Ore Collection are linked to their source volcanoes through the VOTW and the museum’s collection management database. Several global patterns in volcanic activity are evident in the VOTW data, and although some are artifacts and the results of imperfect data collection, some are physically meaningful and statistically significant trends. For example, the global eruption rate shows an apparent increase in volcanic activity over the past 200&#xa0;years but is an artifact of an incomplete eruption record. Indeed, although nearly half of the expected eruptions of VEI5 or larger are present in the VOTW records covering the past two millennia, nearly 90% of all eruptions are probably missing from that same interval. In contrast, the global dataset shows statistically significant bimodal distributions for multiple eruption timescales. Eruption durations are bimodal, with a shorter mode around 1&#xa0;week and a longer mode between 1 and 3&#xa0;months. Average eruption recurrence and quiescence intervals both have a decadal scale mode and a multi-century mode. Those global patterns may be the result of systematic differences in magma composition between volcanoes, with more mafic systems erupting more frequently than silicic systems, but the eruption level compositional and petrological data needed to evaluate that hypothesis are not currently in the VOTW.</p>

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The Volcanoes of the World database

  • Benjamin J. Andrews,
  • Edward Venzke,
  • Elizabeth Cottrell,
  • Sally S. K. Sennert,
  • Kadie L. Bennis,
  • A. E. J. Crafford

摘要

The Volcanoes of the World (VOTW) database is the most comprehensive collection of data describing the world’s volcanoes and their eruptions. The majority of data within the VOTW are available through the Global Volcanism Program website (https://volcano.si.edu/). The VOTW has developed through more than five decades and documents all of the world’s known Holocene volcanoes and many Pleistocene volcanoes. The data types for every volcano in the VOTW include the following: location information, synonyms, subfeatures, general description, eruptive history, references, tectonic setting, and images. Starting around 1968, volcanic activity has been described in narrative reports published under the Bulletin of the Global Volcanism Network. Volcanoes that have been active since 2000 have additional short, narrative descriptions of eruptive activity that are published more frequently as the Smithsonian/United States Geological Survey Weekly Volcanic Activity Report. Volcanic rock samples composing part of the Smithsonian Institution’s National Rock and Ore Collection are linked to their source volcanoes through the VOTW and the museum’s collection management database. Several global patterns in volcanic activity are evident in the VOTW data, and although some are artifacts and the results of imperfect data collection, some are physically meaningful and statistically significant trends. For example, the global eruption rate shows an apparent increase in volcanic activity over the past 200 years but is an artifact of an incomplete eruption record. Indeed, although nearly half of the expected eruptions of VEI5 or larger are present in the VOTW records covering the past two millennia, nearly 90% of all eruptions are probably missing from that same interval. In contrast, the global dataset shows statistically significant bimodal distributions for multiple eruption timescales. Eruption durations are bimodal, with a shorter mode around 1 week and a longer mode between 1 and 3 months. Average eruption recurrence and quiescence intervals both have a decadal scale mode and a multi-century mode. Those global patterns may be the result of systematic differences in magma composition between volcanoes, with more mafic systems erupting more frequently than silicic systems, but the eruption level compositional and petrological data needed to evaluate that hypothesis are not currently in the VOTW.