Swansea volcanologist joins global deep-sea mission to uncover earthquake secret
A Swansea University volcanologist is set to explore one of Earth’s most mysterious underwater landscapes as part of a groundbreaking international expedition off the coast of Japan.
The mission will investigate “petit-spot volcanism”—a little-known phenomenon that may influence earthquake behaviour—by drilling into the Japan Trench near the epicentre of the 2011 Tohoku Earthquake.
Dr Katie Preece, Senior Lecturer in Volcanology, will join scientists from around the world on the International Ocean Drilling Programme (IODP3) Expedition 502.
The team will retrieve a 225-metre core of rock and sediment from close to the subduction zone to better understand how these volcanic features affect seafloor sediment and tectonic activity.
Dr Preece will serve as a sedimentologist aboard the state-of-the-art research vessel Chikyu, where she will help describe and interpret the core samples as they are retrieved.
Beyond this new role, Dr Preece’s research focuses on reconstructing eruption histories and understanding how volcanic systems evolve. Combining fieldwork with laboratory techniques, including petrology, geochemistry and geochronology, she investigates how magma behaves before and during eruptions.
Her previous fieldwork has taken her to volcanoes in Indonesia, Ascension Island and Armenia, but this will be her first time participating in an IODP expedition.
Following the voyage, Dr Preece will lead post-expedition research analysing the textures and chemical composition of the recovered rocks. Her work will help scientists understand how petit-spot activity alters the subducting tectonic plate and contributes to Earth’s deep geochemical cycles.
Expedition 502 is a collaboration between 17 countries. Like many IODP missions, it presents significant technical and scientific challenges, with drilling operations taking place in some of Earth’s most extreme environments.
Originally advertised by the Swansea University Press Office, further information found here - Swansea volcanologist joins global deep-sea mission to uncover earthquake secrets - Swansea University