Figure 3
From: Capturing the fingerprint of Etna volcano activity in gravity and satellite radar data
(a) Spatiotemporal gravity variations along the West-East profile (y axis) between June 1995 and December 2011 (x axis). All measurements were referred to the outermost station of the profile (Adrano; ADR). (b) Gravity variations after the correction of the free-air contribution estimated from DInSAR derived height changes. (c) Gravity changes filtered of local noise, short-wavelength spatial and seasonal components using a 2-D wavelet multi-resolution analysis as described in Methods14. (d) Etna activity from 1995 to 2011 showing the flank eruptions (FE) and the different eruptive styles at the summit craters (SC).
