Thoughts on the criteria to determine the origin of volcanic unrest as magmatic or non-magmatic by Pritchard, ME, Mather, TA, McNutt, SR, Delgado, FJ, Reath, K

Uturuncu volcano, Bolivia: Volcanic unrest due to mid-crustal magma intrusion by Sparks, R, Folkes, C, Humphreys, M, Barfod, D, Clavero, J, Sunagua, M, McNutt, SR, Pritchard, M