Extended Data Fig. 5: Regression analysis and supplementary monitoring data.
From: Shifting melt composition linked to volcanic tremor at Cumbre Vieja volcano
Regression analysis for resampled (daily averages) and normalized time series of tremor amplitude at station PLPI in the (a) 1–3 Hz and (b) 0.35–1 Hz bands versus melt SiO2 content, and 1–3 Hz versus (c) number of discrete earthquakes in the crustal cluster36, (d) SO2 mass60, (e) TADR59, and (f) ash plume height63. Panels (g–i) respectively show SO2 mass, TADR, and ash plume height against SiO2 content. Solid black lines are linear best-fits through the data, with associated correlation coefficient (r) and p-value in black font. Data analysis is based on the two-sided t-test. Dashed grey lines are fits forced through the origin, with associated r in grey font.
