Fig. 10

Predicted area covered by ash as a function of threshold deposit thickness, determined from Figures 8 and 9. The 5% (diamonds), 10% (squares) and 50% (triangles) probabilities of reaching the 1 mm (1.07 kgm⁻²), 1 cm (10.7 kgm⁻²), 10 cm (107 kgm⁻²), 20 cm (214 kgm⁻²) and 1 m (1,070 kgm⁻²) static thresholds are shown, as well as their power-law best-fit curve (black solid lines). The purple arrows and dotted lines show the circular area whose radius corresponds to the distance between Mt. Pelée and key locations in Martinique. The corresponding probabilities of reaching a given threshold thickness are given in Table 3 and discussed in the main text