Abrupt changes of hydrothermal activity in a lava dome detected by combined seismic and muon monitoring

Y. Le Gonidec, M. Rosas-Carbajal, J. de Bremond d'Ars +5

The recent 2014 eruption of the Ontake volcano in Japan recalled that hydrothermal fields of moderately active volcanoes have an unpredictable and hazardous behavior that may endan…