Cerro Auquihuato

Volcano number:354001
Region:South America
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
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.
Location:-73.18, -15.07

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).