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Worldwide Database of Volcanic Ground Deformation

Laguna del Maule

Volcano number: 357061
Region: South America
Country: Chile
Geodetic measurements? Yes
Deformation observation? Yes
Measurement method(s): InSAR, GPS - continuous, GPS - campaign
Duration of observation: 2003-2015 (InSAR), 2012-2015 (GPS)
Inferred cause of deformation: Magmatic
Characteristics of deformation:

There was no measured deformation at Laguna del Maule in an Envisat interferogram from 2003 – 2004 (Le Mével et al., 2015). At some time between 2004 and 2007, the volcano began rapidly uplifting, with an average peak uplift rate of 20 to 30 cm/year between 2007 and 2015 (Le Mével et al., 2015). The deformation has been modelled by the injection of magma into a pre-existing reservoir at 4.5 km depth (Le Mével et al., 2016).

References: 'Le Mével, H., K. L. Feigl, L. Córdova, C. DeMets, and P. Lundgren (2015), Evolution of unrest at Laguna del Maule volcanic field (Chile) from InSAR and GPS measurements, 2003 to 2014, Geophys. Res. Lett., 42, 6590–6598, doi:10.1002/2015GL064665.', 'Le Mével, H., P. M. Gregg, and K. L. Feigl(2016), Magma injection into a long-lived reservoir to explain geodetically measured uplift: Application to the 2007–2014 unrest episode at Laguna del Maule volcanic field, Chile, J. Geophys. Res. Solid Earth, 121, 6092–6108, doi:10.1002/2016JB013066.'
Location: -70.492, -36.058