Extended Data Fig. 8: Source mechanisms during the swarm/diking.
From: Volcanic crisis reveals coupled magma system at Santorini and Kolumbo

a, Polar distribution of pressure, tension and null axes, b, Comparison of fuzzy moment tensors (MTs), overlap of focal spheres for each event (best full MTs and Geofon routine MTs). c, The Hudson plot shows consistent positive isotropic and compensated linear vector dipole (CLVD) components, denoting a combination of shear and opening tensile failure. Each solution is represented by a circle, with size proportional to the magnitude and colour denoting time (colour scale in Fig. 1). Comparison of moment tensor solutions from operational monitoring at GEOFON and this study’s full waveform inversion.