Volcano number:311070
Country:United States
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
Duration of observation:1995 - 2009
Inferred cause of deformation:Surface deposits
Characteristics of deformation:

Between 1995 and 2009, the south flank of Garloi subsidedĀ at ~1 – 1.5 cm/yr. The subsiding area corresponds to a region of lava and pyroclastic deposits from the twentieth century, and subsidence is attributed to thermoelastic compaction of lavas and mechanical compaction of tephra.

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
Location:-178.794, 51.79

Photo of Gareloi. Source I. Jones, U.S. Geological Survey AVO website