Volcano number:261160
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):InSAR, GPS - campaign
Duration of observation:2007-2009
Inferred cause of deformation:Faulting/tectonics, Uncertain
Characteristics of deformation:

Two geodetic studies with very similar time frames (early 2007-2009) have been performed concerning Talang, though only one was centred on this volcano. A campaign GPS survey performed by Kriswati et al showed a very slight inflation on the edifice’s southern slope, which the authors attribute to an accumulation of tectonic stress associated with faulting; a series of right-reverse fault shear zones cut through the top of the volcano.

During the same period of time, Talang was included in the area covered by the InSAR study of the Sumatran Arc by Chaussard, Hong & Amelung (2009), but no significant deformation was observed in the region. The study utilised data from the ALOS satellite, covering early 2007 – early 2009, and was not centred specifically on Talang, but rather aimed to provide information on all 35 active volcanic centres in the area.

Reference:Kriswati, E. et al, 2012. Preliminary Study of Interaction System Between Talang Volcanic Activity and Regional Tectonic of West Sumatera. American Geophysical Union, Fall Meeting 2012, abstract #T43A-2645
Reference:Chaussard, E., S. Hong, and E. Amelung (2009), Monitoring the Sumatra volcanic arc with InSAR, Eos Trans AGU, 90(52), Fall Meet. Suppl., Abstract G41A-0703.
Location:100.679, -0.978

From Smithsonian Institute Global Volcanism Program: Talang. 1991.