Co-eruptive and inter-eruptive surface deformation measured by satellite radar interferometry at Nyamuragira volcano, D.R. Congo, 1996 to 2010

► Dyke emplacement inferred from InSAR for 7 of 8 eruptions between 1996 and 2010. ► Post-eruption subsidence around the sites of the main vents of 4 flank eruptions. ► Long-period subsidence within the caldera indicates subsurface fault structure. ► Minor pre-eruption inflation suggests a highly compressible magma source. ► Inferred buried 'stable' fault-bounded crustal block influences eruption sites.