Volcanic eruptions can be cyclical, alternating between intense activity and repose over periods of hours to days. Numerical simulations of a viscous, gas-rich magma show that ascent through the volcanic conduit naturally induces a periodic pulse of pressurized gas to travel through the magma, which, on reaching the surface, can trigger the cyclical eruptions.
- Chloé Michaut
- Yanick Ricard
- R. Steve J. Sparks