Fig. 4: Comparison of stress field at magma bodies due to buoyancy and magma flow.
From: Unexpected large eruptions from buoyant magma bodies within viscoelastic crust

a Zoom of Fig. 2b showing stress field set up due to buoyancy of magma body. b Stress field due to 2.5 MPa pressure increase caused by magma inflow, for comparison. The colour scale shows the amplitude of the minimum compressive stress (negative values for tension) and the dashes represent the direction of maximum compressive stress (σ1).