Magmatic intrusions are thought to precede volcanic eruptions. However, Castro et al. present evidence that a laccolith was emplaced during the 2011 rhyolitic eruption of Cordón Caulle showing that eruptions may force the intrusion of magma into the shallow crust posing an unrecognized volcanic hazard.
- Jonathan M. Castro
- Benoit Cordonnier
- Yves Feisel