Cerro Blanco

Observations of Deformation

Volcano number:355210
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
Duration of observation:1992-2010
Inferred cause(s) of deformation:Hydrothermal, Magmatic
Characteristics of deformation:

InSAR observations between 1992 and 2010 showed that Cordon Blanco was subsiding at a constant rate with a maximum rate of 1 cm/year (Henderson and Pritchard, 2013). The subsidence was well fit by volume loss from a Mogi point source at 10 km depth, and the authors suggested deformation may have been due to solidification of cooling magma,  removal of hydrothermal fluids followed by compaction, or lateral migration of hydrothermal fluids from the section of crust overlaying deeper crystallizing melt (Henderson and Pritchard, 2013).

Reference(s):Henderson S. T., and M. E. Pritchard (2013), Decadal volcanic deformation in the Central Andes Volcanic Zone revealed by InSAR time series, Geochem. Geophys. Geosyst., 14, 1358–1374, doi:10.1002/ggge.20074.
Location:-26.789, -67.765
REST API endpoint (JSON):https://comet.nerc.ac.uk/wp-json/volcanodb/v1/volcano/4845

Latest Sentinel-1 Data

Filename: cerro-blanco_083D_11651_131313.jpg
Size: 748px x 1110px (279.34 KB)
Filename: cerro-blanco_047A_11782_131313.jpg
Size: 748px x 1110px (277.48 KB)