|Region:||Africa and Red Sea|
|Duration of observation:||1994-2000, 2004-2010|
|Inferred cause of deformation:||Magmatic|
|Characteristics of deformation:||
There is evidence for several periods of uplift and subsidence at Corbetti since 1994, all in a circular pattern centred on the volcano, measured by InSAR (Biggs et al., 2011). Between 1994 and 1996 uplift of 1.4cm was observed. Then between 23 September 1997 – 13 September 2000 a minimum of 14 cm subsidence (incoherence prevents determination of upper bound). Uplift is then observed again in 2009, but lack of data constrains how this develops through time. Between these periods of activity no ground motion is observed where data is available.
|References:||'Biggs, J., I. D. Bastow, D. Keir, and E. Lewi (2011), Pulses of deformation reveal frequently recurring shallow magmatic activity beneath the Main Ethiopian Rift, Geochem. Geophys. Geosyst., 12, Q0AB10, doi:10.1029/2011GC003662', 'Siebert, L., and T. Simkin (2002), Volcanoes of the World: An Illustrated Catalogue of Holocene Volcanoes and Their Eruptions, Global Volcanism Program Digital Inf. Ser., GVP‐3, Smithsonian Inst., Washington, D. C. [Available at http://www.volcano.si.edu/world/.]'|