Simulating magma propagation pathways requires both a well-calibrated
model for the stress state of the volcano and models for dike advance
within such a stress field. With the purpose of establishing a framework
for calculating computationally efficient and flexible shallow magma
propagation scenarios, we develop three-dimensional models for the
stress state of volcanoes with complex topographies and edifice
histories as well as a new simplified three-dimensional model of dike
propagation using the stress state of the volcano as input. Next, we
combine all these models to calculate shallow dike propagation scenarios
for complex caldera settings. The resulting synthetic magma pathways and
eruptive vent locations broadly reproduce the variability observed in
natural calderas.