Uppsala universitetsbibliotek

Antarctic volcanoes: A remote but significant hazard

  • Datum: 07 mars, kl. 12.00–13.00
  • Plats: Geocentrum Geobiblioteket
  • Föreläsare: Dr. Adelina Geyer Traver
  • Arrangör: Steffi Burchardt, Erika Ronchin
  • Kontaktperson: Erika Ronchin
  • Seminarium

Welcome to a lunch seminar with our guest Dr. Adelina Geyer from the Institute of Earth Sciences of the Spanish National Research Council (CSIC). She studies volcanic processes through analogue and numerical models. Dr. Geyer is particularly interested in collapse caldera processes, Antarctic volcanism and magma chamber processes.

Register by sending an email to informator@geo.uu.se no later than Monday March 5 at 12:00 if you want a coffee/tea and a sandwich. 

Abstract:

As evidenced during different eruptions occurred in this decade, volcanic eruptions can cause enormous disruption to air travel across the globe leading to economic losses of billions of euros (e.g. 14/04/2010 - Eyjafjallajökull, Iceland; 24/05/2011-Grímsvötn, Iceland; 05/06/2011-Puyehue-Cordón Caulle, Chile). From the tens of volcanoes located in Antarctica, at least nine are known to be active and five of them have reported volcanic activity in historical times. However, until now, no attention has been paid to the possible consequences (social, economical or environmental) of an eruption occurring on high southern latitudes, may be considering that its impact would be minor or local, and mainly restricted to the practically inhabited Antarctic continent. However, recent studies have demonstrated that volcanic ash emitted from a moderate eruption in Deception Island (South Shetland Islands), one of Antarctica’s most active volcano, could potentially encircle the southern hemisphere, leading to significant economic losses and consequences for global aviation safety. The volcanic cloud could strongly affect the air traffic, not only in the region and at high southern latitudes, but also flights connecting Africa, South America and “Oceania”. These results clearly recall the need to perform a complete hazard assessment for other active Antarctic volcanoes located on West Antarctica and along Victoria Land.