Fig. 6: Cartoon cross-sections depicting the inflation-deflation cycle of the 2018 eruption and plumbing system at Sierra Negra.
From: Caldera resurgence during the 2018 eruption of Sierra Negra volcano, Galápagos Islands
A Pre-eruptive inflation. B Mw5.4 earthquake. C Dyke intrusion. D Co-eruptive deflation, including schematic vertical (red arrows) and horizontal (black arrows) displacements of cGPS stations (green stars), earthquake hypocentres (blue circles), and possible geometry of magma plumbing system (orange for shallow equilibrated magmas, red for deep equilibrated magmas). Black dashed line provides a schematic illustration of relative change in surface shape during each interval. E Deeper magma plumbing system. Dashed lines indicate normalized kernel density estimates (“Methods”) of equilibration depths for early (deep-red) and late (shallow-orange) erupted magmas.
