|Duration of observation:||1995 - 2004|
|Inferred cause of deformation:||Surface deposits|
|Characteristics of deformation:|
Novarupta is located at the edge of a broad region of uplift covering the vicinity of Trident, Martin and Mageik. Between 1992 – 2000, InSAR recorded uplift of this region at 5–10 mm/yr, and between 2000 – 2004 deformation continued at 4–7 mm/year. These interferograms also suggest localised subsidence of Novarupta, which has been attributed to thermoelastic contraction of the dome and thick ashflow tuff.
|Reference:||Lu, Z., and Dzurisin, D., 2014, InSAR imaging of Aleutian volcanoes: Chichester, UK, Springer-Praxis, 390 p.|
|Reference:||U.S. Geological Survey Alaska Volcano Observatory (AVO) website|
Photograph of Novarupta dome. Source: C. G. Reyes, U.S. Geological Survey AVO website