|Region:||Africa and Red Sea|
|Duration of observation:||October 1997 - September 2000, 2003 - 2010|
|Inferred cause of deformation:|
|Characteristics of deformation:|
Between 1997 – 2000 one ERS interferogram measured 3 cm of subsidence (Biggs et al 2009). This signal was modelled as a penny shaped crack source geometry, with diameter of 5.5 km at a depth of 1.5 km.
Robertson (2015) looked at ALOS interferograms between 2003 – 2010, but no deformation was recorded (within a 0.66 cm/yr deformation threshold).
|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|
Menengai is a shield volcano, with a 12 x 8 km caldera. At least 70 post-caldera lava flows can be seen within the caldera, although their ages are unknown. In this image, north is up. NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).