|Duration of observation:||2007-2011|
|Inferred cause of deformation:||Hydrothermal, Magmatic|
|Characteristics of deformation:|
A regional ALOS survey of Northern Andes Volcanoes found Cerro Auquihuato to be inflating at a rate of 1.8 ± 0.3 cm/year between 2007 and 2011 (Morales-Rivera et al., 2016). The deformation was modelled by a sill at 1 km depth opening by 10 cm, which the authors suggest could be either magmatic or hydrothermal in origin.
|Reference:||Morales Rivera, A. M., F. Amelung, and P. Mothes (2016), Volcano deformation survey over the Northern and Central Andes with ALOS InSAR time series, Geochem. Geophys. Geosyst., 17, 2869–2883, doi:10.1002/2016GC006393.|
Satellite image of the Cerro Auquihuato cinder cone (centre of image at the southern margin of the lighter coloured plateau. Photo: NASA Landsat7 image (worldwind.arc.nasa.gov).