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Sinabung Supersite

One of the objectives of this event Supersite is to obtain ground deformation from InSAR data. We have gathered some Radarsat-2 which can be seen with the UNAVCO SAR search GUI, just select "Supersites R22 Sinabung" under "Collections".

Data from Cosmo-Skymed is available for research to scientists who sign the Sinabung supersites license agreement. Access to the Radarsat-2 imagery requires registration with CSA via the PI. Please contact the PI, Falk Amelung, for more details.

The volcano is known to exhibit precursory inflation. Prior to the the current eruptive period which started in 2010 ALOS InSAR detected about 2.1 cm/yr uplift (Chaussard et al., 2013), suggesting that ground deformation could provide warning for new eruptive periods. The volcano also subsided associated with the 2010 eruption. Ground deformation has been explained by a shallow source at ~1 km depth (Chaussard and Amelung, 2012).
Averaged radar line-of-sight velocity map of the west Sunda arc, Indonesia, from ALOS InSAR showing the inflation-deflation pattern at Sinabung and at other Indonesian volcanoes (from Chaussard et al., 2013).


Chaussard, E., Amelung, F., & Aoki, Y. (2013). Characterization of open and closed volcanic systems in Indonesia and Mexico using InSAR timeseries. Journal of Geophysical Research: Solid Earth, DOI: 10.1002/jgrb.50288

Chaussard, E. and F. Amelung (2012), Precursory inflation of shallow magma reservoirs at west Sunda volcanoes detected by InSAR, Geophys. Res. Lett., doi:10.1029/2012GL053817.

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