|Region:||Mexico and Central America|
|Duration of observation:||2007-2010|
|Inferred cause of deformation:||Faulting/tectonics|
|Characteristics of deformation:|
ALOS InSAR measurements from 2007-2010 recorded 4cm/yr subsidence at Masaya, attributed to motion on a ring fault around the edge of the caldera (Caravantes, 2013).
No addition deformation was detected within the caldera (detection threshold 1.3 cm/yr) during a regional survey of Central American volcanoes (Ebmeier et al., 2013).
|Reference:||Geophysical constraints on the structural evolution and hazards of volcano Masaya, Nicaragua . PhD Thesis. Open University, 2013.|
|Reference:||Ebmeier, S. K., J. Biggs, T. A. Mather, and F. Amelung (2013), On the lack of InSAR observations of magmatic deformation at Central American volcanoes, J. Geophys. Res. Solid Earth, 118, 2571–2585, doi:10.1002/jgrb.50195.|
View of Masaya from the east caldera rim. Photo: Jaime Incer