Time series analysis of magma at active volcanoes

Abstract

We developed an automatic ash sampling system for active volcanoes. We also examined several petrological analyses of magmatic ejecta to achieve daily monitoring and forecast of eruptions. We found that the amount of microlite-rich/poor particle can be one of activity indices at Suwanosejima volcano, and that two different but very similar magmas are mixing and erupting at Sakurajima volcano.