Observations of Deformation

Volcano number:312180
Country:United States
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
Duration of observation:1995 - 2004
Inferred cause(s) 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(s):Lu, Z., and Dzurisin, D., 2014, InSAR imaging of Aleutian volcanoes: Chichester, UK, Springer-Praxis, 390 p.
U.S. Geological Survey Alaska Volcano Observatory (AVO) website
Location:58.27, -155.157
REST API endpoint (JSON):

Latest Sentinel-1 Data

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