Suswa

Volcano number:222110
Region:Africa and Red Sea
Country:Kenya
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR
Duration of observation:1997 - 2000, 2003 - 2010
Inferred cause of deformation:Uncertain
Characteristics of deformation:

One ERS interferogram from October 1997 to September 2000 showed 4.6 cm of subsidence at Suswa, centred on the inner caldera (Biggs et al. 2009). Since 2000 ALOS and ENVISAT imagery have been used to look at deformation at Suswa, but no deformation has been observed within the thresholds of 0.32 cm/yr and 0.11 cm/yr respectively (Robertson, 2015).

Reference:Biggs, J., Anthony, E. Y., & Ebinger, C. J. (2009). Multiple inflation and deflation events at Kenyan volcanoes, East African Rift. Geology, 37(11), 979-982.
Reference:Robertson, E. 2015. Magma storage and transport at Kenyan Rift volcanoes: a remote sensing perspective. Chapter 2. Ph.D Thesis, University of Bristol, UK.
Reference:Smithsonian Institution Global Volcanism Program
http://volcano.si.edu/volcano.cfm?vn=222100
Location:36.35, -1.175

Suswa caldera. Suswa has a 5 km wide circular graben that isolates a tilted island block of caldera-floor lava flows. The most recent eruptions at Suswa are thought to be around 100 years old. North is to the top. NASA Landsat7 image (worldwind.arc.nasa.gov